CN107104698B

CN107104698B - RF circuit switch chip, RF circuit, antenna device and electronic equipment

Info

Publication number: CN107104698B
Application number: CN201710327046.8A
Authority: CN
Inventors: 丛明; 冯斌
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-05-10
Filing date: 2017-05-10
Publication date: 2021-03-02
Anticipated expiration: 2037-05-10
Also published as: CN107104698A

Abstract

Embodiments of the present invention provide a radio frequency circuit switch chip, a radio frequency circuit, an antenna device, and an electronic device. The radio frequency circuit switch chip includes a first switch, a second switch, and a frequency divider, wherein the first switch is used to receive a high frequency signal or an intermediate frequency signal, and the second switch is used to receive a low frequency signal; When the first switch and the second switch selectively turn on the frequency divider, the frequency divider divides the received signal into a high frequency signal or an intermediate frequency signal and a low frequency signal. In this solution, the radio frequency circuit switch chip can divide the frequency of the carrier aggregation signal, so that the diversity of the frequency division of the carrier aggregation signal by the electronic device can be improved.

Description

Radio frequency circuit switch chip, radio frequency circuit, antenna device and electronic equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a radio frequency circuit switch chip, a radio frequency circuit, an antenna device, and an electronic apparatus.

Background

With the development of communication technology, more and more communication frequency bands can be supported by the mobile terminal. For example, an LTE (Long Term Evolution) communication signal may include a signal having a frequency between 700MHz and 2700 MHz.

Radio frequency signals that can be supported by a mobile terminal can be divided into low frequency signals, intermediate frequency signals, and high frequency signals. The low-frequency signal, the intermediate-frequency signal and the high-frequency signal respectively comprise a plurality of sub-frequency band signals. Each sub-band signal needs to be transmitted to the outside world via an antenna.

Thus, a Carrier Aggregation (CA) technique has been produced. Through carrier aggregation, a plurality of sub-frequency band signals can be aggregated together to improve the uplink and downlink transmission rate of the network.

Currently, the frequency resources of the various communication markets around the world are different from each other. Communication operators in different areas have different communication spectrum allocations, and different frequency band combination requirements of carrier aggregation exist. Correspondingly, when the terminal is in a carrier aggregation state, that is, receives radio frequency signals of different frequency band combinations, frequency division operation needs to be performed on the radio frequency signals to obtain the radio frequency signals of a specific frequency band. However, the current frequency division method is single, lacks diversity, and cannot meet the above requirements.

Disclosure of Invention

The embodiment of the invention provides a radio frequency circuit switch chip, a radio frequency circuit, an antenna device and electronic equipment, which can improve the diversity of frequency division of carrier aggregation signals by the electronic equipment.

The embodiment of the invention provides a radio frequency circuit switch chip, which comprises a first switch, a second switch and a frequency divider, wherein the first switch is used for receiving a high-frequency signal or an intermediate-frequency signal, and the second switch is used for receiving a low-frequency signal;

when the first switch and the second switch selectively turn on the frequency divider, the frequency divider divides a receiving signal into a high-frequency signal or an intermediate-frequency signal and a low-frequency signal.

The embodiment of the invention also provides a radio frequency power supply, which comprises a radio frequency transceiver, a radio frequency circuit switch chip and an antenna, wherein the radio frequency transceiver, the radio frequency circuit switch chip and the antenna are sequentially connected;

the radio frequency circuit switch chip comprises a first switch, a second switch and a frequency divider, wherein the first switch is used for receiving a high-frequency signal or an intermediate-frequency signal, and the second switch is used for receiving a low-frequency signal;

The embodiment of the invention also provides an antenna device which comprises the radio frequency circuit.

Correspondingly, the embodiment of the invention also provides electronic equipment, which comprises a shell and a circuit board, wherein the circuit board is arranged in the shell, and the circuit board is provided with a radio frequency circuit which is the radio frequency circuit.

The radio frequency circuit switch chip provided by the embodiment of the invention can divide the frequency of the carrier aggregation signal, so that the diversity of frequency division of the carrier aggregation signal by electronic equipment can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is an exploded schematic view of an electronic device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a first structure of a radio frequency circuit according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a second structure of the rf circuit according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of a third structure of the rf circuit according to the embodiment of the present invention.

Fig. 6 is a schematic diagram of a fourth structure of the rf circuit according to the embodiment of the present invention.

Fig. 7 is a schematic diagram of a fifth structure of the rf circuit according to the embodiment of the present invention.

Fig. 8 is a schematic diagram of a sixth structure of the rf circuit according to the embodiment of the present invention.

Fig. 9 is a schematic diagram of a seventh structure of the rf circuit according to the embodiment of the present invention.

Fig. 10 is a schematic diagram of an eighth structure of the rf circuit according to the embodiment of the present invention.

Fig. 11 is a schematic diagram of a ninth structure of the rf circuit according to the embodiment of the present invention.

Fig. 12 is a schematic diagram of a first structure of a rf circuit switch chip according to an embodiment of the present invention.

Fig. 13 is a schematic diagram of a second structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 14 is a schematic diagram of a third structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 15 is a schematic diagram of a fourth structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 16 is a schematic diagram of a fifth structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 17 is a schematic diagram of a sixth structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 18 is a schematic diagram of a tenth structure of the rf circuit according to the embodiment of the present invention.

Fig. 19 is another schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The embodiment of the invention provides electronic equipment. The electronic device can be a smart phone, a tablet computer and the like. Referring to fig. 1 and2, the electronic device 100 includes a cover plate 101, a display screen 102, a circuit board 103, a battery 104, and a housing 105.

Wherein the cover plate 101 is mounted to the display screen 102 to cover the display screen 102. The cover plate 101 may be a transparent glass cover plate. In some embodiments, the cover plate 101 may be a glass cover plate made of a material such as sapphire.

The display screen 102 is mounted on the housing 105 to form a display surface of the electronic device 100. The display screen 102 may include a display area 102A and a non-display area 102B. The display area 102A is used to display information such as images and texts. The non-display area 102B does not display information. The bottom of the non-display area 102B may be provided with functional elements such as a fingerprint module, a touch circuit, and the like.

The circuit board 103 is mounted inside the housing 105. The circuit board 103 may be a motherboard of the electronic device 100. Functional components such as a camera, a proximity sensor, and a processor may be integrated on the circuit board 103. Meanwhile, the display screen 102 may be electrically connected to the circuit board 103.

In some embodiments, Radio Frequency (RF) circuitry is disposed on the circuit board 103. The radio frequency circuit can communicate with a network device (e.g., a server, a base station, etc.) or other electronic devices (e.g., a smart phone, etc.) through a wireless network to complete information transceiving with the network device or other electronic devices.

In some embodiments, as shown in fig. 3, the rf circuit 200 includes an rf transceiver 21, a power amplifying unit 22, a filtering unit 23, an rf circuit switch chip 24, and an antenna 25. The power amplifying unit 22, the filtering unit 23, the rf circuit switch chip 24, and the antenna 25 are connected in sequence.

The radio frequency transceiver 21 has a transmission port TX and a reception port RX. The transmission port TX is used for transmitting radio frequency signals (uplink signals), and the reception port RX is used for receiving radio frequency signals (downlink signals). The transmission port TX of the radio frequency transceiver 21 is connected to the power amplification unit 22, and the reception port RX is connected to the filtering unit 23.

The power amplifying unit 22 is configured to amplify the uplink signal transmitted by the radio frequency transceiver 21, and send the amplified uplink signal to the filtering unit 23.

The filtering unit 23 is configured to filter the uplink signal transmitted by the radio frequency transceiver 21, and send the filtered uplink signal to the antenna 25. The filtering unit 23 is further configured to filter the downlink signal received by the antenna 25 and send the filtered downlink signal to the radio frequency transceiver 21.

The rf circuit switch chip 24 is used to selectively switch on the communication band between the rf transceiver 21 and the antenna 25. The detailed structure and function of the rf circuit switch chip 24 will be described below.

The antenna 25 is used for transmitting the uplink signal transmitted by the radio frequency transceiver 21 to the outside, or receiving a radio frequency signal from the outside, and transmitting the received downlink signal to the radio frequency transceiver 21.

In some embodiments, as shown in fig. 4, rf circuit 200 also includes control circuit 26. The control circuit 26 is connected to the rf circuit switch chip 24. The control circuit 26 may also be connected to a processor in the electronic device 100 to control the state of the rf circuit switch chip 24 according to instructions from the processor.

In some embodiments, as shown in fig. 5, the rf circuit 200 further includes a low noise amplification unit 27. A low-noise amplification unit 27 is connected between the receiving port RX of the radio frequency transceiver 21 and the filtering unit 23, and the low-noise amplification unit 27 is used for amplifying weak signals and reducing noise in downlink signals.

In some embodiments, as shown in fig. 6, rf circuit 200 also includes a Phase Shift unit 28. A phase shift unit 28 is connected between the filter unit 23 and the rf circuit switch chip 24. The phase shift unit 28 is used to adjust the phase of the signal amplitude of the upstream signal or the downstream signal.

In some embodiments, as shown in fig. 7, the rf circuit 200 further includes a low noise amplification unit 27 and a phase shift unit 28. Wherein, a low noise amplification unit 27 is connected between the receiving port RX of the radio frequency transceiver 21 and the filtering unit 23; the low-noise amplification unit 27 is used for amplifying weak signals and reducing noise in downlink signals. A phase translation unit 28 is connected between the filtering unit 23 and the radio frequency circuit switch chip 24; the phase shift unit 28 is used to adjust the phase of the signal amplitude of the upstream signal or the downstream signal.

In some embodiments, as shown in fig. 8, the radio frequency transceiver 21 includes a high frequency port 21H, an intermediate frequency port 21M, and a low frequency port 21L. The high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L may respectively include a plurality of rf transmitting ports and a plurality of rf receiving ports. The high-frequency port 21H is used for transceiving high-frequency radio frequency signals, the intermediate-frequency port 21M is used for transceiving intermediate-frequency radio frequency signals, and the low-frequency port 21L is used for transceiving low-frequency radio frequency signals.

It should be noted that the high frequency rf signal, the intermediate frequency rf signal, and the low frequency rf signal are only relative concepts, and are not absolute frequency range differentiation. For example, the low frequency signal is 700-.

For example, the radio frequency transceiver 21 includes 9 radio frequency transmission ports a1, a2, a3, a4, a5, a6, a7, a8, a9, and 9 radio frequency reception ports b1, b2, b3, b4, b5, b6, b7, b8, b 9.

Among them, a1, a2, a3 are high frequency transmitting ports for transmitting high frequency radio frequency signals (for example, radio frequency signals in bands 7, bands 40, bands 41, etc.). b1, b2 and b3 are high frequency receiving ports for receiving high frequency radio frequency signals. a4, a5 and a6 are intermediate frequency transmitting ports, and are used for transmitting intermediate frequency radio frequency signals (for example, radio frequency signals in bands 1, bands 3, bands 34 or bands 39). b4, b5 and b6 are intermediate frequency receiving ports for receiving intermediate frequency radio frequency signals. a7, a8 and a9 are low-frequency transmitting ports for transmitting low-frequency radio frequency signals (for example, radio frequency signals in bands 8, bands 12, bands 20 or bands 26). b7, b8, b9 are low frequency receiving ports for receiving low frequency radio frequency signals.

It should be noted that, in the above embodiment, only the high-frequency port 21H, the intermediate-frequency port 21M, and the low-frequency port 21L of the radio frequency transceiver 21 respectively include 3 radio frequency transmitting ports and3 radio frequency receiving ports are taken as an example for description. In other embodiments, the high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L may further include other numbers of rf transmitting ports and rf receiving ports, respectively. It is only necessary to satisfy that the number of the radio frequency transmitting ports and the number of the radio frequency receiving ports included in the high frequency port 21H, the intermediate frequency port 21M, and the low frequency port 21L are the same and greater than 1.

The power amplification unit 22 includes 9

amplifiers

221, 222, 223, 224, 225, 226, 227, 228, 229. The

amplifiers

221, 222, 223, 224, 225, 226, 227, 228, 229 are respectively connected to the rf transmitting ports a1, a2, a3, a4, a5, a6, a7, a8, a9 of the rf transceiver 21.

The filtering unit 23 includes 9

duplexers

231, 232, 233, 234, 235, 236, 237, 238, 239. The

duplexers

231, 232, 233, 234, 235, 236, 237, 238, and 239 are respectively connected to the

amplifiers

221, 222, 223, 224, 225, 226, 227, 228, and 229. The

duplexers

231, 232, 233, 234, 235, 236, 237, 238, and 239 are respectively connected to rf receiving ports b1, b2, b3, b4, b5, b6, b7, b8, and b9 of the rf transceiver 21.

When the antenna 25 is a main set antenna that can be used to transmit or receive signals, the side connected to the antenna is defined as the output and the side connected to the filter is defined as the input. The input end of the radio frequency circuit switch chip 24 comprises 9 sub-input ports c1, c2, c3, c4, c5, c6, c7, c8 and c 9. The sub-input ports c1, c2, c3, c4, c5, c6, c7, c8 and c9 are respectively connected to the

duplexers

231, 232, 233, 234, 235, 236, 237, 238 and 239.

In some embodiments, as shown in fig. 9, the filtering unit 23 includes a filter 231, a filter 232, and7 duplexers 233, 234, 235, 236, 237, 238, 239. The filter 231, the filter 232, and the 7

duplexers

233, 234, 235, 236, 237, 238, and 239 are connected to the

amplifiers

221, 222, 223, 224, 225, 226, 227, 228, and 229, respectively. The filter 231, the filter 232, and the 7

duplexers

233, 234, 235, 236, 237, 238, and 239 are respectively connected to rf receiving ports b1, b2, b3, b4, b5, b6, b7, b8, and b9 of the rf transceiver 21.

When the antenna 25 is a main set antenna that can be used to transmit or receive signals, the side connected to the antenna is defined as the output and the side connected to the filter is defined as the input. The input end of the radio frequency circuit switch chip 24 comprises 9 sub-input ports c1, c2, c3, c4, c5, c6, c7, c8 and c 9. The sub-input ports c1, c2, c3, c4, c5, c6, c7, c8 and c9 are respectively connected to the filter 231, the filter 232 and the 7

duplexers

233, 234, 235, 236, 237, 238 and 239.

It should be noted that the above embodiment only exemplifies that the filtering unit 23 includes 2 filters and7 duplexers. In other embodiments, the filtering unit 23 may further include other numbers of filters and duplexers.

In some embodiments, as shown in fig. 10 to 11, the antenna 25 may be a diversity antenna for receiving signals, and the antenna 25 is used for receiving radio frequency signals from the outside and transmitting the received downlink signals to the radio frequency transceiver 21.

As shown in fig. 10, for example, the filtering unit 23 includes 9

filters

231, 232, 233, 234, 235, 236, 237, 238, 239. The

filters

When the antenna 25 is a diversity antenna for receiving signals, the side connected to the antenna is defined as an input terminal, and the side connected to the filter is defined as an output terminal. The output end of the radio frequency circuit switch chip 24 comprises 9 sub-output ports c1, c2, c3, c4, c5, c6, c7, c8 and c 9. The sub-output ports c1, c2, c3, c4, c5, c6, c7, c8 and c9 are respectively connected to the

filters

231, 232, 233, 234, 235, 236, 237, 238 and 239.

The antenna 25 receives radio frequency signals from the outside, and the received downlink signals enter the filtering unit 23 through the radio frequency switch chip 24, are filtered by the filtering unit 23, and are then transmitted to the radio frequency transceiver 21.

As shown in fig. 11, the radio frequency circuit 200 further includes a phase shifting unit 28. For example, the phase shifting unit 28 comprises 9

phase shifters

281, 282, 283, 284, 285, 286, 287, 288, 289.

One end of each

phase shifter

281, 282, 283, 284, 285, 286, 287, 288, 289 is connected with each

filter

231, 232, 233, 234, 235, 236, 237, 238, 239; the other ends of the

phase shifters

281, 282, 283, 284, 285, 286, 287, 288, 289 are respectively connected to the 9 sub-output ports c1, c2, c3, c4, c5, c6, c7, c8, c9 of the rf circuit switch chip 24.

The number and connection relationship of the filters, duplexers, phase shifters, and ports in the above embodiments are not intended to limit the present invention.

In a Long Term Evolution (LTE) communication network, according to different Duplex modes, the LTE communication Frequency band is divided into two types, Frequency Division Duplex (FDD) and Time Division Duplex (TDD). In the communication frequency band in the FDD mode, the uplink and downlink communication links use different frequencies, and at this time, the rf circuit needs a duplexer to filter the uplink and downlink communication signals. In the communication frequency band in the TDD mode, the uplink and downlink communication links use the same frequency and transmit radio frequency signals in different time slots, and at this time, a filter is required in the radio frequency circuit to filter the uplink and downlink communication signals.

Therefore, in practical applications, the number of filters and the number of duplexers included in the filtering unit 23 depend on the duplex mode of the radio frequency signals of each frequency band transmitted by the radio frequency transceiver 21. In the frequency band of the FDD mode, a duplexer is connected with a radio frequency transmitting port and a radio frequency receiving port; in the frequency band of the TDD mode, a radio frequency transmitting port and a radio frequency receiving port are connected with a filter. For example, the Band1 and the Band2 frequency bands operate in an FDD mode, and the transmitting ports and the receiving ports of the Band1 and the Band2 radio frequency signals are connected with duplexers; and the Band40 and the Band41 frequency bands work in a TDD mode, and the transmitting ports and the receiving ports of the Band40 and the Band41 radio frequency signals are connected with filters.

Referring to fig. 12, in some embodiments, when the antenna 25 is a diversity antenna for receiving signals, the radio frequency circuit switch chip 24 includes a first switch 241, a second switch 242, and a frequency divider 243.

The first switch 241 is a double-pole multi-throw switch, and the second switch 242 is a single-pole multi-throw switch. For example, the first switch 241 includes 3 first signal type sub-output ports c1, c2, c3 and3 second signal type sub-output ports c4, c5, c6, and the first switch 241 includes a first input port 2411 and a second input port 2412; the second switch 242 includes 3 third signal type sub-output ports c7, c8, c 9. The inputs of the first switch 241 and the second switch 242 are connected to the output of the frequency divider 243.

Frequency divider 243 may be a three-frequency divider. The output of the frequency divider 243 is connected to the antenna 25.

The above connection relation merely represents direct connection between the components, and does not represent that the components connected to each other are electrically connected to each other.

In some embodiments, the sub-output ports c1, c2, c3 may be respectively connected to a high-frequency port in the radio-frequency transceiver 21, the sub-output ports c4, c5, c6 may be respectively connected to an intermediate-frequency port in the radio-frequency transceiver 21, and the sub-output ports c7, c8, c9 may be respectively connected to a low-frequency port in the radio-frequency transceiver 21.

When the first input port 2411 of the switch 241 is turned on any one of c1, c2 and c3, the second input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, and the switch 242 is turned off, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal and an intermediate frequency signal.

When the first input port 2411 of the switch 241 is turned on any one of c1, c2 and c3, the second input port 2412 of the switch 241 is turned off, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal and a low frequency signal. Or when the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c1, c2 and c3, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into an intermediate frequency signal and a low frequency signal. Or when the first input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, the second input port 2412 of the switch 241 is turned off, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into an intermediate frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 turns on any one of c1, c2 and c3, the second input port 2412 of the switch 241 turns on any one of c4, c5 and c6, and the switch 242 turns on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal and a low frequency signal. Or when the second input port 2412 of the switch 241 is turned on any one of c1, c2 and c3, the first input port 2411 of the switch 241 is turned on any one of c4, c5 and c6, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 243 may divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal and a low frequency signal.

In some embodiments, the device location of the frequency divider 243 may also be replaced by a combiner 243, and the combiner 243 is used to achieve carrier aggregation of the multi-band signal when the antenna 25 is a main set antenna for transmitting signals or receiving signals.

Referring to fig. 13, in some embodiments, the rf circuit switch chip 24 includes a first switch 241, a second switch 242, and a frequency divider 245.

The first switch 241 and the second switch 242 are single-pole multi-throw switches. When the antenna 25 is a diversity antenna for receiving signals, the first switch 241 is used for receiving high frequency signals or intermediate frequency signals, and the second switch 242 is used for receiving low frequency signals.

An input terminal of the first switch 241 is connected to a first output port of the frequency divider 245; and an input of the second switch 242 is connected to a second output port of the frequency divider 245.

When the carrier aggregation signal received by the antenna 25 is a high-frequency carrier signal and a low-frequency carrier signal, the first switch 241 and the second switch 242 switch on the frequency divider 245, and the frequency divider 245 divides the carrier aggregation signal into a high-frequency signal and a low-frequency signal;

when the carrier aggregation signal received by the antenna 25 is a medium-low frequency carrier signal, the first switch 241 and the second switch 242 turn on the frequency divider 245, and the frequency divider 245 divides the carrier aggregation signal into an intermediate frequency signal and a low frequency signal.

When the output port of the switch 241 is turned on at any one of c1, c2 and c3 and the output port of the switch 242 is turned on at any one of c7, c8 and c9, the frequency divider 245 divides the carrier aggregation signal into a high frequency signal and a low frequency signal.

When the output port of the switch 241 is turned on at any one of c4, c5 and c6, and the output port of the switch 242 is turned on at any one of c7, c8 and c9, the frequency divider 245 divides the carrier aggregation signal into an intermediate frequency signal and a low frequency signal.

In some embodiments, the first switch 241 and the second switch 242 are packaged to form a first chip 247.

Wherein the frequency divider 245 is a dual frequency divider. The input of divider 245 is connected to antenna 25.

For example, the sub-output port c2 may be connected to a high-frequency Band40 receiving port in the radio frequency transceiver 21, the sub-output port c5 may be connected to a mid-frequency Band3 receiving port in the radio frequency transceiver 21, and the sub-output port c8 may be connected to a low-frequency Band8 receiving port in the radio frequency transceiver 21.

When the output port of the switch 241 is turned on c2 and the output port 2412 of the switch 242 is turned on c8, the frequency divider 245 may divide the carrier aggregation signal into Band40 and Band 8.

When the input port of the switch 241 is turned on c5 and the input port 2412 of the switch 242 is turned on c8, the frequency divider 245 may divide the carrier aggregated signal into Band3 and Band 8.

In some embodiments, the device location of the frequency divider 245 may also be replaced by a combiner 245, and the combiner 245 is used to implement carrier aggregation of the multi-band signal when the antenna 25 is a main set antenna for transmitting or receiving signals.

Referring to fig. 14-17, in some embodiments, the rf circuit switch chip 24 includes a first switch 241, a second switch 242, a switch component 246, and first and

second frequency dividers

244, 245.

The first switch 241 is a double-pole multi-throw switch, and the second switch 242 is a single-pole multi-throw switch. For example, the first switch 241 includes 3 first signal type sub-output ports c1, c2, c3 and3 second signal type sub-output ports c4, c5, c6, and the first switch 241 includes a first input port 2411 and a second input port 2412; the second switch 242 includes 3 third signal type sub-output ports c7, c8, c 9. The first and

second input ports

2411 and 2412 of the first switch 241 are connected to the switch assembly 246. An input of the second switch 242 is connected to a second output port of the second frequency divider 245. The switch assembly 246 has 3 output ports P1, P2, P3 and3 input ports Q1, Q2, Q3. The output port P1 is connected to the first input port 2411 of the switch 241. The output port P2 is connected to the second input port 2412 of the switch 241. The output port P3 is connected to an input of the first frequency divider 244. Input port Q1 is connected to a first output port of divider 244. Input port Q2 is connected to a second output port of divider 244. The input Q3 is connected to a first output of the second frequency divider 245.

The first frequency divider 244 and the second frequency divider 245 are dual-frequency dividers. An output of the second frequency divider 245 is connected to the antenna 25.

In some embodiments, as shown in fig. 14, the switch assembly 246 includes switches K1, K2. Wherein, the switch K1 is a single-pole double-throw switch, and the switch K2 is a single-pole single-throw switch.

The fixed end of the single-pole double-throw switch K1 is connected with the second output port P2 of the switch assembly 246, and the gating end of the single-pole double-throw switch K1 is respectively connected with the second input port Q2 and the second input port Q3 of the switch assembly 246; the single-pole double-throw switch K1 can selectively connect the second output port P2 with the second input port Q2 or the second input port Q3.

The output end and the input end of the single-pole single-throw switch K2 are respectively connected with the third output port P3 and the third input port Q3 of the switch assembly 246; the single-pole single-throw switch K2 can selectively connect the third output port P3 and the third input port Q3.

When the first input port 2411 of the switch 241 turns on any one of c1, c2 and c3, the second input port 2412 of the switch 241 turns on any one of c4, c5 and c6, and the switch K1 turns on P2 and Q2, the frequency divider 244 may divide the carrier aggregation signal into a high frequency signal and an intermediate frequency signal.

Further, when the switch K2 turns on the P3 and the Q3, and the switch 242 turns on any one of the c7, c8 and c9, the frequency divider 244 and the frequency divider 245 can divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c1, c2 and c3, the switch K1 is turned on P2 and Q3, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 245 can divide the carrier aggregation signal into a high frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, the switch K1 is turned on P2 and Q3, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 245 can divide the carrier aggregation signal into an intermediate frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 turns on c2, the second input port 2412 of the switch 241 turns on c5, and the switch K1 turns on P2 and Q2, the frequency divider 244 may divide the carrier aggregation signal into Band40 and Band 3.

Further, when the switch K2 turns on P3 and Q3 and the switch 242 turns on c8, the frequency divider 244 and the frequency divider 245 can divide the carrier aggregation signal into Band40, Band3, and Band 8.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on c2, the switch K1 is turned on P2 and Q3, and the switch 242 is turned on c8, the frequency divider 245 may divide the carrier aggregation signal into Band40 and Band 8.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on c5, the switch K1 is turned on P2 and Q3, and the switch 242 is turned on c8, the frequency divider 245 may divide the carrier aggregation signal into Band3 and Band 8.

In some embodiments, as shown in fig. 15, the switch assembly 246 includes switches K1, K2. Wherein, the switch K1 is a single-pole single-throw switch, and the switch K2 is a single-pole double-throw switch.

The output end and the input end of the single-pole single-throw switch K1 are respectively connected with the second output port P2 and the second input port Q2 of the switch assembly 246; the single-pole single-throw switch K1 can selectively communicate the second output port P2 with the second input port Q2.

The fixed end of the single-pole double-throw switch K2 is connected with the third input port Q3 of the switch component 246, and the gating end of the single-pole double-throw switch K2 is respectively connected with the second output port P2 and the third output port P3 of the switch component 246; the single-pole double-throw switch K2 can selectively communicate the third input port Q3 with the second output port P2 or the third output port P3.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c1, c2 and c3, the switch K2 is turned on P2 and Q3, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 245 can divide the carrier aggregation signal into a high frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, the switch K2 is turned on P2 and Q3, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 245 can divide the carrier aggregation signal into an intermediate frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on c2, the switch K2 is turned on P2 and Q3, and the switch 242 is turned on c8, the frequency divider 245 may divide the carrier aggregation signal into Band40 and Band 8.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on c5, the switch K2 is turned on P2 and Q3, and the switch 242 is turned on c8, the frequency divider 245 may divide the carrier aggregation signal into Band3 and Band 8.

In some embodiments, the first switch 241 and the second switch 242 may be packaged to form a first chip 247.

In some embodiments, as shown in fig. 16, the switch assembly 246 includes switches K1, K2, K3. Wherein, the switches K1, K2 and K3 are single-pole single-throw switches.

The output end and the input end of the single-pole single-throw switch K2 are respectively connected with the second output port P2 and the third input port Q3 of the switch assembly 246; the single-pole single-throw switch K2 can selectively communicate the second output port P2 with the second input port Q3.

The output end and the input end of the single-pole single-throw switch K3 are respectively connected with the third output port P3 and the third input port Q3 of the switch assembly 246; the single-pole single-throw switch K3 can selectively communicate the third output port P3 with the third input port Q3.

Further, when the switch K2 is turned off, the switch K3 turns on the P3 and the Q3, and the switch 242 turns on any one of c7, c8, and c9, the frequency divider 244 and the frequency divider 245 can divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal, and a low frequency signal.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c1, c2 and c3, the switch K2 is turned on P2 and Q3, the switch K3 is turned off, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 245 can divide the carrier aggregation signal into a high frequency signal and a low frequency signal.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on any one of c4, c5 and c6, the switch K2 is turned on P2 and Q3, the switch K3 is turned off, and the switch 242 is turned on any one of c7, c8 and c9, the frequency divider 245 can divide the carrier aggregation signal into an intermediate frequency signal and a low frequency signal.

Further, when the switch K2 is turned off, the switch K3 is turned on P3 and Q3, and the switch 242 is turned on c8, the frequency divider 244 and the frequency divider 245 can divide the carrier aggregation signal into Band40, Band3, and Band 8.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on c2, the switch K2 is turned on P2 and Q3, the switch K3 is turned off, and the switch 242 is turned on c8, the frequency divider 245 may divide the carrier aggregation signal into Band40 and Band 8.

When the first input port 2411 of the switch 241 is turned off, the second input port 2412 of the switch 241 is turned on c5, the switch K2 is turned on P2 and Q3, the switch K3 is turned off, and the switch 242 is turned on c8, the frequency divider 245 may divide the carrier aggregation signal into Band3 and Band 8.

In some embodiments, the first switch 241, the second switch 242, and the switch assembly 246 may be packaged to form a second chip 248.

In some embodiments, the positions of the frequency divider 244 and the frequency divider 245 may be replaced by a combiner 244 and a combiner 245, and when the antenna 25 is a main antenna for transmitting or receiving signals, the combiner 244 and the combiner 245 are used for carrier aggregation of multi-band signals.

In some embodiments, as shown in fig. 17, based on fig. 16, the frequency divider 244 may be eliminated, and the first input port 2411 of the switch 241 is directly connected to the frequency divider 245 to divide the carrier aggregated signal into a high frequency signal or an intermediate frequency signal and a low frequency signal through the frequency divider 245.

The first switch 241 may be a double-pole multi-throw switch, and the second switch 242 may be a single-pole multi-throw switch. When the antenna 25 is a diversity antenna for receiving signals, the first switch 241 is used for receiving high frequency signals or intermediate frequency signals, and the second switch 242 is used for receiving low frequency signals.

In some embodiments, the positions of the

frequency dividers

244 and 245 may be replaced by a combiner 244 and a combiner 245, and when the antenna 25 is a main antenna for transmitting or receiving signals, the combiner 244 and the combiner 245 are used for realizing carrier aggregation of multi-band signals.

The switch element 246 and the first input port 2412 of the first switch shown in fig. 17 are in an idle state, and can be used to meet the requirements of other frequency-dividing circuits.

Referring to fig. 18, fig. 18 is a schematic structural diagram of the rf circuit 200. Wherein, the radio frequency transceiver 21 includes 9 radio frequency transmitting ports a1, a2, a3, a4, a5, a6, a7, a8, a9, and 9 radio frequency receiving ports b1, b2, b3, b4, b5, b6, b7, b8, b 9.

Among them, a1, a2, a3 are high frequency transmitting ports for transmitting high frequency radio frequency signals (for example, radio frequency signals in bands 7, bands 40, bands 41, etc.). b1, b2 and b3 are high frequency receiving ports for receiving high frequency radio frequency signals. a4, a5 and a6 are intermediate frequency transmitting ports, and are used for transmitting intermediate frequency radio frequency signals (for example, radio frequency signals in bands 1, bands 3, bands 34 or bands 39). B4, B5, B6 are if receiving ports for receiving if rf signals. a7, a8 and a9 are low-frequency transmitting ports for transmitting low-frequency radio frequency signals (for example, radio frequency signals in bands 8, bands 12, bands 20 or bands 26). b7, b8, b9 are low frequency receiving ports for receiving low frequency radio frequency signals.

For example, the filtering unit 23 includes 9

filters

231, 232, 233, 234, 235, 236, 237, 238, 239. The

filters

231, 232, 233, 234, 235, 236, 237, 238 and 239.

The rf circuit switch chip 24 includes a first switch 241, a second switch 242, a switch component 246, and a first frequency divider 244 and a second frequency divider 245.

second input ports

In the embodiment of the present invention, the rf circuit switch chip 24 may control the high frequency port and the intermediate frequency port of the rf transceiver 21 to connect to the first frequency divider 244, so as to divide the carrier aggregation signal into a high frequency signal and an intermediate frequency signal; the high frequency port and the intermediate frequency port of the radio frequency transceiver 21 may be controlled to be connected to the first frequency divider 244, and the low frequency port of the radio frequency transceiver 21 is connected to the second frequency divider 245, so as to divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal, and a low frequency signal; the high frequency port and the low frequency port of the radio frequency transceiver 21 may also be controlled to connect the second frequency divider 245, so as to divide the carrier aggregation signal into a high frequency signal and a low frequency signal; the if port and the lf port of the rf transceiver 21 may be controlled to switch on the second frequency divider 245 to divide the carrier aggregation signal into an if signal and an lf signal. The radio frequency circuit switch chip 24 can divide the frequency of the carrier aggregation signal, so that the diversity of the frequency division of the carrier aggregation signal by the electronic device can be improved.

Continuing with reference to fig. 1 and 2. Wherein the battery 104 is mounted inside the housing 105. The battery 104 is used to provide power to the electronic device 100.

The housing 105 is used to form the outer contour of the electronic device 100. The material of the housing 105 may be plastic or metal. The housing 105 may be integrally formed.

Referring to fig. 19, fig. 19 is another schematic structural diagram of the electronic device 100 according to the embodiment of the present invention. The electronic device 100 includes an antenna apparatus 10, a memory 20, a display unit 30, a power supply 40, and a processor 50. Those skilled in the art will appreciate that the configuration of the electronic device 100 shown in fig. 19 does not constitute a limitation of the electronic device 100. Electronic device 100 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

The antenna device 10 includes the rf circuit 200 described in any of the above embodiments. The antenna device 10 can communicate with a network device (e.g., a server) or other electronic devices (e.g., a smart phone) through a wireless network, and complete information transceiving with the network device or other electronic devices.

The memory 20 may be used to store applications and data. The memory 20 stores applications containing executable program code. The application programs may constitute various functional modules. The processor 50 executes various functional applications and data processing by running the application programs stored in the memory 20.

The display unit 30 may be used to display information input to the electronic apparatus 100 by a user or information provided to the user and various graphic user interfaces of the electronic apparatus 100. These graphical user interfaces may be made up of graphics, text, icons, video, and any combination thereof. The display unit 30 may include a display panel.

The power supply 40 is used to power the various components of the electronic device 100. In some embodiments, power supply 40 may be logically coupled to processor 50 through a power management system, such that functions to manage charging, discharging, and power consumption management are performed through the power management system.

The processor 50 is the control center of the electronic device 100. The processor 50 connects various parts of the entire electronic device 100 using various interfaces and lines, performs various functions of the electronic device 100 and processes data by running or executing an application program stored in the memory 20 and calling data stored in the memory 20, thereby monitoring the electronic device 100 as a whole.

In addition, the electronic device 100 may further include a camera module, a bluetooth module, and the like, which are not described herein again.

The radio frequency circuit switch chip, the radio frequency circuit, the antenna device and the electronic device provided by the embodiments of the present invention are described in detail above, and the principle and the implementation manner of the present invention are explained in this document by applying specific examples, and the description of the above embodiments is only used to help understanding of the present invention. Meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A radio frequency circuit switch chip, characterized in that, applied to a diversity antenna, the radio frequency circuit switch chip comprises a first switch, a second switch, a switch component and a frequency divider, wherein the first switch is used for receiving A high-frequency signal or an intermediate-frequency signal, the second switch is used to receive a low-frequency signal, the first switch and the second switch are packaged to form a first chip, and the switch component and the frequency divider are arranged on the first chip and the second switch. Between the diversity antennas, the switch assembly includes switches K1, K2, the switch assembly has 3 output ports P1, P2, P3 and 3 input ports Q1, Q2, Q3, the first switch includes a first input port port and a second input port and a number of first signal type sub-output ports and a number of second signal type sub-output ports, the second switch includes a number of third signal type sub-output ports, the frequency divider includes a first frequency divider divider and second divider;

The radio frequency circuit switch chip includes at least three output ports for dividing the carrier aggregation signal into at least two radio frequency signals of three frequency bands: Band40, Band3, and Band8;

When the first input port is connected to any one of the sub-output ports of the first signal type, the second input port is connected to any one of the sub-output ports of the second signal type, and the switch K1 is connected to P2 and Q2 , the first frequency divider in the radio frequency circuit switch chip is used to divide the carrier aggregation signal into a high frequency signal and an intermediate frequency signal, and when the second switch is connected to any one of the third signal type sub-output ports, When the switch K2 turns on P3 and Q3, the first frequency divider and the second frequency divider in the radio frequency circuit switch chip are used to divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal, and a low frequency signal;

When the first input port is disconnected, the second input port is connected to any one of the sub-output ports of the first signal type, the second switch is connected to any one of the sub-output ports of the third signal type, and the switch K2 connects P2 and Q3, and the second frequency divider in the radio frequency circuit switch chip is used to divide the carrier aggregation signal into a high frequency signal and a low frequency signal;

When the first input port is disconnected, the second input port is connected to any one of the sub-output ports of the second signal type, the second switch is connected to any one of the sub-output ports of the third signal type, and the switch K2 connects P2 and Q3, and the second frequency divider in the radio frequency circuit switch chip is used to divide the carrier aggregation signal into an intermediate frequency signal and a low frequency signal.

2. The radio frequency circuit switch chip according to claim 1, wherein:

The first input port of the first switch is connected to the switch assembly output port P1, and the second input port of the first switch is connected to the switch assembly output port P2; and

The input end of the second switch is connected to the second output port of the second frequency divider.

3 . The radio frequency circuit switch chip according to claim 1 , wherein the first frequency divider and the second frequency divider are dual frequency dividers. 4 .

4. A radio frequency circuit, characterized in that the radio frequency circuit comprises a radio frequency transceiver, a radio frequency circuit switch chip and an antenna, and the radio frequency transceiver, the radio frequency circuit switch chip and the antenna are connected in sequence;

The radio frequency circuit switch chip includes a first switch, a second switch, a switch component and a frequency divider, wherein the first switch is used to receive a high frequency signal or an intermediate frequency signal, and the second switch is used to receive a low frequency signal, The first switch and the second switch are packaged to form a first chip. The switch assembly and the frequency divider are arranged between the first chip and the antenna. The switch assembly includes switches K1 and K2. The assembly has 3 output ports P1, P2, P3 and 3 input ports Q1, Q2, Q3, the first switch includes a first input port and a second input port and several first signal type sub-output ports and several second a signal type sub-output port, the second switch includes a plurality of third signal type sub-output ports, and the frequency divider includes a first frequency divider and a second frequency divider;

When the first input port is connected to any one of the sub-output ports of the first signal type, the second input port is connected to any one of the sub-output ports of the second signal type, and the switch K1 is connected to P2 and Q2 , the first frequency divider in the radio frequency circuit switch chip is used to divide the carrier aggregation signal into a high frequency signal and an intermediate frequency signal, and when the second switch is connected to any one of the third signal type sub-output ports, When the switch K2 is connected to P3 and Q3, the first frequency divider and the second frequency divider chip in the RF circuit switch core are used to divide the carrier aggregation signal into a high frequency signal, an intermediate frequency signal, and a low frequency signal. ;

5. radio frequency circuit according to claim 4, is characterized in that:

The first input port of the first switch is connected to the output port P1 of the switch assembly, and the second input port of the first switch is connected to the output port P2 of the switch assembly;

an input terminal of the second switch is connected to a second output port of the second frequency divider; and

The input end of the second frequency divider is connected to the antenna.

6 . The radio frequency circuit according to claim 5 , wherein the radio frequency transceiver comprises a high frequency port, an intermediate frequency port and a low frequency port, and the high frequency port and the intermediate frequency port are respectively corresponding to the first switch. 7 . The sub output port is connected, and the low frequency port is connected with the sub output port of the second switch.

7. The radio frequency circuit according to claim 6, wherein:

The high-frequency port includes N1 sub-transmit ports of different frequency bands and N1 sub-receive ports of different frequency bands, the intermediate frequency port includes N2 sub-transmit ports of different frequency bands and N2 sub-receive ports of different frequency bands, the first The numbers of sub-output ports of a signal type and the sub-output ports of the second signal type are N1 and N2, respectively, and the N1 sub-transmit ports and the N1 sub-receive ports are respectively associated with the N1 first-signal type sub-output ports One-to-one connection; the N2 sub-transmit ports and the N2 sub-receive ports are respectively connected to the N2 sub-output ports of the second signal type one by one;

The low-frequency ports include N3 sub-transmit ports of different frequency bands and N3 sub-receive ports of different frequency bands, the number of sub-output ports of the third signal type is N3, the N3 sub-transmit ports and the N3 sub-receive ports are respectively connected with the N3 third signal type sub-output ports one by one;

Among them, N1, N2, N3 are all natural numbers greater than 1.

8 . The radio frequency circuit according to claim 7 , wherein a low noise amplifying unit is further connected between the radio frequency transceiver and the radio frequency circuit switch chip, and the low noise amplifying unit comprises a plurality of low noise an amplifier, the low noise amplifier is connected between each of the sub-receiving ports and each of the sub-output ports.

9 . The radio frequency circuit according to claim 7 , wherein a filter unit is further connected between the radio frequency transceiver and the radio frequency circuit switch chip, and the filter unit comprises a plurality of duplexers or filters. 10 . , the duplexer or filter is connected between each of the sub-transmitting ports and each of the sub-receiving ports and each of the sub-output ports, respectively.

10 . An antenna device, characterized in that, the antenna device comprises the radio frequency circuit according to any one of claims 4 to 8 .

11. An electronic device, characterized in that the electronic device comprises a casing and a circuit board, the circuit board is installed inside the casing, and a radio frequency circuit is provided on the circuit board, and the radio frequency circuit is the right The radio frequency circuit described in any one of 4 to 8 is required.