CN209170362U - Radio frequency assembly, conduction testing equipment and terminal - Google Patents

Abstract

The present application discloses a radio frequency component, a conduction test equipment and a terminal. Components include: motherboard and antenna. The main board is provided with a first connector, a radio frequency transceiver and a baseband processor, and the antenna is provided with a second connector; the first pin of the first connector is connected to the first port of the radio frequency transceiver, and the second tube of the first connector is connected to the first port of the radio frequency transceiver. The pin is connected to the control signal, the third pin of the first connector is connected to the first port of the baseband processor, the second port of the radio frequency transceiver is connected to the second port of the baseband processor, and the first pin of the second connector is connected to At the radio frequency end of the antenna, the second pin of the second connector is connected to the third pin of the second connector; wherein, when the second connector is buckled with the first connector, the first pin of the first connector The first pin of the second connector is connected, the second pin of the first connector is connected to the second pin of the second connector, and the third pin of the first connector is connected to the third pin of the second connector .

Description

A radio frequency component, conduction test equipment and terminal

technical field

The present application relates to the field of communications, and in particular, to a radio frequency component, a conduction test equipment and a terminal.

Background technique

The Specific Absorption Rate (SAR) is a numerical value indicating that the human body absorbs electromagnetic waves radiated by the mobile terminal. Excessive SAR may cause harm to the human body. Therefore, at present, the radio frequency components of the terminal are equipped with SAR detection circuits to obtain the SAR parameters of the antenna during the coupling test of the whole machine, so as to optimize it.

Before the terminal leaves the factory or when the RF components are returned to the factory for repair, conduction tests are generally performed on the RF components. Conduction testing is used to verify RF parameters in RF components, thereby locating components that do not meet factory requirements or that have problems. In the conduction test state, the SAR detection circuit needs to stop working to avoid affecting the conduction test.

The radio frequency components of traditional 4G terminals are equipped with coaxial antennas. The coaxial antennas are connected to the main board through the radio frequency socket. The radio frequency socket has the ability to switch on and off the channel, which is used to control the SAR detection circuit in the coupling test and conduction test of the whole machine. different states.

In the future, terminals (such as 5G terminals) will be equipped with Liquid Crystal Polymer (LCP) antennas to replace coaxial antennas. The advantage of the LCP antenna is that a LCP antenna can transmit multiple radio frequency signals at the same time, thereby realizing multi-frequency transmission with a small space occupation.

With the introduction of the LCP antenna, the radio frequency socket will also be replaced by the connector. The connector is different from the radio frequency socket and does not have the ability to switch on and off the channel. Therefore, how to realize the two different states of the radio frequency component for the coupling test and the conduction test of the whole machine through the connector is the problem to be solved by the present application.

Utility model content

The purpose of the embodiments of the present application is to provide a radio frequency assembly, a conduction test device and a terminal, which are used to realize two different states of the radio frequency assembly for the whole machine coupling test and conduction test through the connector.

In a first aspect, a radio frequency component is provided, including: a main board and an antenna;

The motherboard is provided with a first connector, a radio frequency transceiver and a baseband processor, and the antenna is provided with a second connector;

The first pin of the first connector is connected to the first port of the radio frequency transceiver, the second pin of the first connector is connected to the control signal, and the third pin of the first connector is connected to The first port of the baseband processor, the second port of the radio frequency transceiver is connected to the second port of the baseband processor, the first pin of the second connector is connected to the radio frequency end of the antenna, so the second pin of the second connector is connected to the third pin of the second connector;

Wherein, the antenna is buckled with the first connector through the second connector to be assembled on the motherboard, and when the second connector is buckled with the first connector, the The first pin of the first connector is connected to the first pin of the second connector, the second pin of the first connector is connected to the second pin of the second connector, the first pin The third pin of the connector is connected to the third pin of the second connector.

In a second aspect, a conduction test device is provided for conducting a conduction test on the radio frequency component described in the first aspect, and the conduction test device includes:

a third connector matching the first connector in the radio frequency device and serving as a conduction test port of the conduction test equipment, the first pin of the third connector transmits the conduction test of the conduction test equipment signal, the second pin of the third connector is empty;

Wherein, when the third connector is buckled with the first connector, the first pin of the third connector is connected to the first pin of the first connector, and the third connector The second pin of the first connector is connected to the second pin of the first connector.

In a third aspect, a terminal is provided, including the radio frequency component described in the first aspect.

Based on the plugging and unplugging of the connector between the antenna and the main board, the embodiment of the present application realizes the support of the radio frequency component for the coupling test and conduction test of the whole machine. Since there is no need to introduce additional resistive devices, the fabrication cost and circuit footprint of the radio frequency components can be reduced.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

FIG. 1 is a schematic structural diagram of a radio frequency component provided by an embodiment of the present application;

2 is a schematic diagram of a path for transmitting a radio frequency signal of a radio frequency component provided by an embodiment of the present application;

3 is a schematic diagram of a path for transmitting a SAR control signal and a SAR detection signal of a radio frequency component provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of the antenna of the radio frequency component provided by the embodiment of the present application when the antenna is removed from the main board.

5 is a schematic structural diagram of a conduction test device provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram when the conduction test equipment provided in the embodiment of the present application performs a conduction test on the radio frequency component provided in the embodiment of the present application;

7 is a schematic structural diagram of a transmission terminal provided by an embodiment of the present application;

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

As mentioned above, the antenna of the future terminal will be connected to the main board with a connector. To this end, the present application provides a technical solution to realize two different states of the radio frequency component for the whole machine coupling test and conduction test based on the connector.

On the one hand, as shown in FIG. 1 , an embodiment of the present application provides a radio frequency component, including: a main board 1 and an antenna 2 .

The main board 1 is provided with: a first connector 11 , a radio frequency transceiver 12 and a baseband processor 13 ;

The antenna 2 is provided with: a second connector 21 .

For the first connector 11:

The first pin 111 of the first connector 11 is used as the output end of the radio frequency signal, and is connected to the first port 121 of the radio frequency transceiver 12; the second pin 112 of the first connector 11 is used as the input end of the SAR control signal, and is connected to the first port 121 of the radio frequency transceiver 12 Control signal; the third pin 113 of the first connector 111 is used as the output end of the SAR detection signal, and is connected to the first port 131 of the baseband processor 13 .

For the radio frequency transceiver 12:

The first port 121 of the radio frequency transceiver 12 is connected to the first pin 111 of the first connector 11 , and the second port 122 of the radio frequency transceiver 12 is connected to the second port 132 of the baseband processor 13 .

For baseband processor 13:

The first port 131 of the baseband processor 13 is connected to the third pin 113 of the first connector 111 , and the second port 132 of the baseband processor 13 is connected to the second port 122 of the radio frequency transceiver 12 .

For the second connector 21:

The first pin 211 of the second connector 21 is connected to the radio frequency end of the antenna 2 to access the radio frequency signal of the antenna 2 ; the second pin 212 of the second connector 21 is connected to the third pin 213 of the second connector 21 .

It should be understood that the first connector 11 and the second connector 21 in the embodiment of the present application are matched, so the antenna 2 is snapped with the first connector 11 through the second connector 21 to be assembled on the motherboard 1 .

When the second connector 21 is buckled with the first connector 11 , the first pin 111 of the first connector 11 is connected to the first pin 211 of the second connector 21 and the second pin of the first connector 11 112 is connected to the second pin 212 of the second connector 21 , and the third pin 113 of the first connector 11 is connected to the third pin 213 of the second connector 21 .

Referring to FIG. 2, FIG. 2 shows a transmission path in which the baseband processor 13 controls the radio frequency transceiver 12 to transmit and receive radio frequency signals through an antenna.

Taking receiving a radio frequency signal as an example, the corresponding transmission path is: the first port 211 of the second connector 21 → the first pin 111 of the first connector 11 → the first port 121 of the radio frequency transceiver 12 → the radio frequency transceiver 12 The second port 122 of the baseband processor 13 → the second port 132 of the baseband processor 13 .

Similarly, the path for sending the radio frequency signal is opposite to the above-mentioned path. Since the radio frequency function belongs to the prior art, the path for sending the radio frequency signal will not be described in detail in this document.

When performing the whole machine coupling test:

As shown in FIG. 3 , the first connector 11 and the second connector 21 are in a snap-fit state. The second pin 112 of the first connector 11 is connected to a high-level SAR control signal, and the SAR control signal reaches the third pin 213 of the second connector 21 from the second pin 212 of the second connector 21 After the third pin 113 of a connector 11 is outputted as a SAR detection signal to the first port 131 of the baseband processor 13 from the third pin 113 of the first connector 11 . The baseband processor 13 optimizes the SAR parameters after receiving the high-level SAR detection signal.

When conducting a conduction test:

As shown in FIG. 4 , the antenna 2 is removed from the mainboard 1 , that is, the first connector 11 and the second connector 21 are no longer in a snap-fit state. At this time, the high-level SAR control signal cannot reach the third pin 113 of the first connector 11 , and the first port 131 of the baseband processor 13 can only detect the third pin 113 of the first connector 11 Low level SAR test signal, no optimization of SAR parameters.

Afterwards, the components in the radio frequency assembly are tested by loading the conduction test signal to the first pin 111 of the first connector 11 to simulate the radio frequency signal.

It should be noted that, in an actual radio frequency assembly, at least one radio frequency front-end element is disposed between the radio frequency transceiver 12 and the first connector 11, and these radio frequency front-end elements can be used as the object of the conduction test. In addition, the baseband processor 13 determines whether to optimize the SAR parameters based on the high/low level SAR detection signals, which belongs to the existing function of the baseband processor 13 . The baseband processor 13 may select to optimize the SAR parameters when receiving a high-level SAR detection signal, and select not to optimize the SAR parameters when receiving a low-level SAR detection signal; or, the baseband processor 13 It is also possible to choose to optimize the SAR parameters when a low-level SAR detection signal is received, and to choose not to optimize the SAR parameters when a high-level SAR detection signal is received.

It should be understood that when the radio frequency assembly of the embodiment of the present application is in a normal use state, the first connector 11 and the second connector 21 are in a snap-fit state, that is, the antenna 2 is assembled on the main board 1 to form an electrical connection. When a conduction test needs to be performed, such as factory inspection or maintenance of a radio frequency component, the second connector 21 can be pulled out from the first connector 11 .

It can be seen that, based on the plugging and unplugging of the connector between the antenna and the main board, the embodiment of the present application realizes the support of the radio frequency component for the coupling test and conduction test of the whole machine. Since there is no need to introduce additional resistive devices, the fabrication cost and circuit footprint of the radio frequency components can be reduced.

In addition, on the basis of the above, the radio frequency device of this embodiment further includes:

A power management integrated circuit for outputting the above-mentioned SAR control signal, the output end of the power management integrated circuit is connected to the second pin 112 of the first connector 11 .

Optionally, the first connector 11 and the first connector 11 in the embodiment of the present application are board-to-board BTB connectors

In addition, the embodiments of the present application do not specifically limit the antenna, but any technical solutions that are assembled to the motherboard through the connection of the connectors in the embodiments of the present application shall belong to the protection and prevention of the present application.

It should be understood that the antenna in this embodiment of the present application may be an LCP antenna, that is, the LCP antenna belongs to a flexible circuit board antenna, and the forming material includes: liquid crystal polymer.

Correspondingly, as shown in FIG. 5 , an embodiment of the present application further provides a conduction test device 3 for conducting a conduction test on the above-mentioned radio frequency device, and the conduction test device 3 includes:

A third connector 31 (such as a BTB connector) that matches the first connector in the radio frequency device and conducts the conduction test port of the test equipment, and the first pin 311 of the third connector 31 transmits the conduction test of the conduction test equipment Signal, the second pin 312 of the third connector 31 is connected to the empty connection.

Wherein, as shown in FIG. 6 , when the radio frequency assembly 1 shown in FIG. 1 needs to be transmitted to the test, the second connector 21 of the radio frequency assembly 1 is pulled away from the second connector 11, and the test equipment The third connector 31 of 3 is buckled with the first connector 11 .

At this time, the first pin 311 of the third connector 31 is connected to the first pin 111 of the first connector 11 , and the second pin 312 of the third connector 31 is connected to the third pin 113 of the first connector 11 . .

Taking the transmission of the conduction test signal as an example, the corresponding transmission path is: the first pin 311 of the third connector 31 → the first pin 111 of the first connector 11 → the first port 121 of the radio frequency transceiver 12 → the radio frequency transceiver The second port 122 of the processor 12 → the second port 132 of the baseband processor 13 .

In this state, the second pin 312 of the third connector 31 is disconnected, so that the third pin 113 of the first connector 11 is in a low level state. It can be seen from the above description that the baseband processor 13 is not suitable for the SAR Parameters are optimized to avoid interference with conduction detection.

Similarly, the path for receiving the conduction test signal is opposite to the above-mentioned path. Since the conduction test belongs to the prior art, the path for receiving the conduction test signal will not be described in detail herein.

In addition, as shown in FIG. 7 , an embodiment of the present application further provides a terminal 700 including the radio frequency component 710 provided above in the present application.

It should be understood that the functions implemented by the radio frequency component 710 provided in the present application in FIG. 1 to FIG. 6 can also be implemented on the terminal 700 , and details are not repeated herein.

It should be noted that the technical solutions of the embodiments of the present application do not involve improvements related to programs and methods, and the involved functions are all supported by existing hardware.

As used herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes no explicit Other elements listed, or elements inherent to such a process, method, article or apparatus are also included. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (10)

1. A radio frequency assembly, comprising a mainboard and an antenna, is characterized in that, The motherboard is provided with a first connector, a radio frequency transceiver and a baseband processor, and the antenna is provided with a second connector; The first pin of the first connector is connected to the first port of the radio frequency transceiver, the second pin of the first connector is connected to the control signal, and the third pin of the first connector is connected to The first port of the baseband processor, the second port of the radio frequency transceiver is connected to the second port of the baseband processor, the first pin of the second connector is connected to the radio frequency end of the antenna, so the second pin of the second connector is connected to the third pin of the second connector; Wherein, the antenna is buckled with the first connector through the second connector to be assembled on the motherboard, and when the second connector is buckled with the first connector, the The first pin of the first connector is connected to the first pin of the second connector, the second pin of the first connector is connected to the second pin of the second connector, the first pin The third pin of the connector is connected to the third pin of the second connector. 2. The radio frequency assembly of claim 1, wherein The first connector and the second connector are board-to-board connectors. 3. The radio frequency assembly of claim 1, wherein The first connector is a male connector, and the second connector is a female connector. 4. The radio frequency assembly of claim 1, wherein The first connector is a female connector, and the second connector is a male connector. 5. The radio frequency assembly of claim 1, further comprising: A power management integrated circuit for outputting the control signal, the output end of the power management integrated circuit is connected to the second pin of the first connector. 6. The radio frequency assembly of claim 1, wherein The antenna is a flexible circuit board antenna. 7. The radio frequency assembly of claim 5, wherein The forming material of the antenna includes: liquid crystal polymer. 8. A conduction test equipment for conducting a conduction test on the radio frequency assembly according to any one of claims 1-7, wherein the conduction test equipment comprises: a third connector that mates with the first connector in the radio frequency assembly and serves as a conductive test port of the conductive test device, the first pin of the third connector transmits the conductive test of the conductive test device signal, the second pin of the third connector is empty; Wherein, when the third connector is buckled with the first connector, the first pin of the third connector is connected to the first pin of the first connector, and the third connector The second pin of the first connector is connected to the third pin of the first connector. 9. The conduction test apparatus of claim 8, wherein The third connector is a board-to-board connector. 10. A terminal, comprising the radio frequency component according to any one of claims 1-7.