CN112838371B - Antenna multiplexing system and terminal - Google Patents
Antenna multiplexing system and terminal Download PDFInfo
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- CN112838371B CN112838371B CN201911159425.6A CN201911159425A CN112838371B CN 112838371 B CN112838371 B CN 112838371B CN 201911159425 A CN201911159425 A CN 201911159425A CN 112838371 B CN112838371 B CN 112838371B
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- 230000005855 radiation Effects 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 20
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
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- 230000000875 corresponding effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000005404 monopole Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
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Abstract
本申请实施例公开了一种天线复用系统和终端，其中该天线复用系统包括天线本体、第一天线匹配通路、第二天线匹配通路、切换模块和控制模块，第一天线匹配通路与第二天线匹配通路的谐振频率不同，控制模块与切换模块连接；其中，天线本体包括天线辐射枝节和耦合寄生单元，耦合寄生单元通过切换模块与第一天线匹配通路连接，天线辐射枝节与第二天线匹配通路连接，耦合寄生单元与天线辐射枝节通过彼此之间的第一缝隙相互耦合产生谐振。本实施例可以实现天线的复用，在不牺牲天线效率的前提下，满足多种谐振频率对天线数量的需求，并且在节省布局空间的基础上，提高天线的带宽和效率。
The embodiment of the present application discloses an antenna multiplexing system and a terminal, wherein the antenna multiplexing system includes an antenna body, a first antenna matching path, a second antenna matching path, a switching module and a control module, the first antenna matching path and the second antenna matching path have different resonant frequencies, and the control module is connected to the switching module; wherein the antenna body includes an antenna radiation branch and a coupling parasitic unit, the coupling parasitic unit is connected to the first antenna matching path through the switching module, the antenna radiation branch is connected to the second antenna matching path, and the coupling parasitic unit and the antenna radiation branch are coupled to each other through a first gap between each other to generate resonance. This embodiment can realize antenna reuse, meet the requirements of the number of antennas for multiple resonant frequencies without sacrificing antenna efficiency, and improve the bandwidth and efficiency of the antenna on the basis of saving layout space.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to an antenna multiplexing system and a terminal.
Background
With the accelerated maturity of the fifth generation mobile communication system (5G) communication technology standard and the deep development of the global 5G pre-commercial test, the characteristics of the 5G network such as ultra-large bandwidth, ultra-low delay and high reliability make the 5G communication technology applicable to various industries such as education, medical treatment, intelligent manufacturing, internet of vehicles and the like.
The 5G communication technology provides the end user with a larger data throughput rate and smaller time delay, and the transmission of large data volume requires a larger bandwidth, so that the 5G communication technology requires a wider bandwidth than the 2G/3G/4G communication technology, and a Multiple-Input Multiple-Output (MIMO) antenna technology has arisen. In order to support the MIMO technology, the intelligent terminal has more antennas than the 2G/3G/4G terminal, and the large bandwidth means that higher requirements are put on the frequency band of the electromagnetic field. Since the antenna resonance bandwidth is positively correlated with the space occupied by the antenna, the wider the resonance bandwidth, the greater the antenna space required. The main idea of the current antenna design is to meet the requirement of 5G antennas by stacking the number of antennas on the basis of 2G/3G/4G antennas, and for example, referring to FIG. 1, FIG. 1 is a schematic diagram of an antenna layout in the prior art, the 5G frequency band is N41 and N79, meanwhile, the 2G/3G/4G frequency band and the GPS/WIFI frequency band are also required to be supported, and considering the requirement of LTE B41X 4MIMO, the number of antennas can reach 10, namely, the number of antennas of the GPS/WIFI frequency band is 1, the number of antennas of the LTE+N41 frequency band is 5, and the number of antennas of the N79 frequency band is 4. However, the method for increasing the number of the antennas requires occupying layout space of a printed circuit board (Printed Circuit Board, PCB), which results in difficult layout of the baseband radio frequency device and design difficulty for the structure, the antennas with increased two sides of the terminal have poorer environments, basically have no clearance, have difficult antenna efficiency and coverage bandwidth to meet the design requirement, increase cost, increase the number of the antennas, cause shorter interval distance between the antennas, poorer antenna isolation, cause increased debugging difficulty and further have influenced efficiency.
In view of the above drawbacks and the current trend of large screen occupation of intelligent terminals, the possibility of increasing the bandwidth by continuously increasing the antenna space is smaller and smaller. In the prior art, although the 5G band antenna and the 4G band antenna can coexist in the terminal space through the antenna multiplexing technology, the bandwidth and efficiency of the antennas cannot meet the requirements.
Disclosure of Invention
The embodiment of the application provides an antenna multiplexing system and a terminal, which are used for improving the bandwidth and efficiency of an antenna on the basis of saving layout space.
In a first aspect, an embodiment of the present application provides an antenna multiplexing system, including an antenna body, a first antenna matching path, a second antenna matching path, a switching module and a control module, where the resonant frequencies of the first antenna matching path and the second antenna matching path are different, and the control module is connected with the switching module, where the antenna body includes an antenna radiation branch and a coupling parasitic unit, the coupling parasitic unit is connected with the first antenna matching path through the switching module, the antenna radiation branch is connected with the second antenna matching path, and the coupling parasitic unit and the antenna radiation branch are mutually coupled through a first gap between them to generate resonance.
Further, the first antenna matching path includes a variable capacitor, a first matching circuit, and a first feed point connected to the first matching circuit.
Further, one end of the variable capacitor is connected with the switching module, the other end of the variable capacitor is connected with the first matching circuit, and the variable capacitor is used for tuning the resonant frequency.
Further, the second antenna matching path includes a second matching circuit and a second feeding point connected to the second matching circuit.
Further, the antenna radiation branch is provided with a second slit.
Further, the width of the first slot, the width of the second slot, the length of the antenna radiating stub, and the length of the coupling parasitic element all support adjustment.
Further, the width of the first gap is larger than 0.3 millimeter, and the length of the coupling parasitic element is 1/4 times of the wavelength.
Further, the antenna switching device further comprises at least two grounded antenna matching paths, wherein the grounded antenna matching paths are connected with the switching module, and a matching circuit in the grounded antenna matching paths supports adjustment.
Further, the resonant frequency of the first antenna matching path is 3.2GHz-5GHz, the resonant frequency of the second antenna matching path is 0.7GHz-2.7GHz, and the switching module is a switch comprising at least four channels.
In a second aspect, an embodiment of the present application further provides a terminal configured with the antenna multiplexing system as described above.
The embodiment of the application provides an antenna multiplexing system and a terminal, wherein a first antenna matching passage in the antenna multiplexing system is connected with a coupling parasitic unit through a switching module, the coupling parasitic unit is a branch in an antenna body corresponding to a second antenna matching passage, an antenna radiation branch in the antenna body is connected with the second antenna matching passage, when a control module is used for communicating the first antenna matching passage through controlling the switching module, the resonant frequency of the first antenna matching passage can be generated, the resonant frequencies of the first antenna matching passage and the second antenna matching passage are different, the multiplexing of antennas is realized, the requirement of various resonant frequencies on the number of antennas is met on the premise of not sacrificing the antenna efficiency, and the bandwidth and the efficiency of the antennas are improved on the basis of saving layout space.
Drawings
Fig. 1 is a schematic diagram of an antenna layout in the prior art;
Fig. 2 is a schematic structural diagram of an antenna multiplexing system according to an embodiment of the present application;
fig. 3 is a schematic diagram of an antenna return loss according to an embodiment of the present application;
fig. 4 is a schematic diagram of another antenna return loss provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings.
Fig. 2 is a schematic structural diagram of an antenna multiplexing system according to an embodiment of the present application. As shown in fig. 2, the antenna multiplexing system specifically may include an antenna body, a first antenna matching path 11, a second antenna matching path 12, a switching module 13, and a control module (not shown in the figure), where the first antenna matching path 11 and the second antenna matching path 12 have different resonant frequencies, and the control module is connected to the switching module 13, and the antenna body includes an antenna radiating branch 14 and a coupling parasitic unit 15, where the coupling parasitic unit 15 is connected to the first antenna matching path 11 through the switching module 13, and the antenna radiating branch 14 is connected to the second antenna matching path 12, and the coupling parasitic unit 15 and the antenna radiating branch 14 are mutually coupled to generate resonance through a first gap 16 therebetween.
The antenna body may be a 2G/3G/4G antenna, that is, the resonant frequency of the second antenna matching path 12 connected to the antenna radiating branch 14 in the antenna body is 0.7GHz-2.7GHz, and may cover a 2G/3G/4G frequency band, for example, the 4G frequency band may include LTE B40 and B41, where the resonant frequency of B40 is 2.3GHz-2.4GHz, and the resonant frequency of B41 is 2.5GHz-2.7GHz.
Further, the second antenna matching path 12 may include a second matching circuit 121 and a second feeding point 122 connected to the second matching circuit 121. The second feeding point 122 may be a 2G/3G/4G feeding point, corresponding to a 2G/3G/4G frequency band. The antenna radiation branch 14 in the antenna body is connected with the second feed point 122 through the second matching circuit 121, the antenna radiation branch 14 can generate low-frequency resonance with the resonance frequency of 700MHz-960MHz and intermediate-frequency resonance with the resonance frequency of 1710MHz-2200MH based on the structure of the antenna radiation branch 14, the coupling parasitic unit 15 and the antenna radiation branch 14 are mutually coupled through the first gap 16, and 2G/3G/4G high-frequency resonance with the resonance frequency of 2.3GHz-2.7GHz can be generated, so that the resonance frequency of the antenna can cover low, medium and high frequency points of 2G/3G/4G frequency bands.
Further, the first antenna matching path 11 may include a variable capacitor 111, a first matching circuit 112, and a first feeding point 113 connected to the first matching circuit 112. The first feeding point 113 may be a 5G feeding point, corresponding to a 5G frequency band. One end of the variable capacitor 111 is connected to the switching module 13, the other end of the variable capacitor 111 is connected to the first matching circuit 112, and the variable capacitor 111 is used to tune the resonance frequency. The connection line between the variable capacitor 111 and the switching module 13 and the connection line between the variable capacitor 111 and the first matching circuit 112 may be set as a set impedance control line, and the set impedance may be set according to actual conditions, for example, the set impedance may be 50 ohm impedance. The type of the variable capacitor 111 is not limited in this embodiment, and may be set according to actual conditions.
The resonance frequency of the first antenna matching path 11 is 3.2GHz-5GHz, i.e. the first antenna matching path 11 corresponds to a 5G frequency band, e.g. the 5G frequency band may comprise n77, n78 and n79, the resonance frequency of n77 is 3.3GHz-4.2GHz, the resonance frequency of n78 is 3.3GHz-3.8GHz, and the resonance frequency of n79 is 4.4GHz-5GHz. The variable capacitor 111 may tune the resonance frequency of the 5G band.
The coupling parasitic unit 15 is connected with the first antenna matching path 11 through the switching module 13, and when the switching module 13 communicates the first antenna matching path 11, a resonance frequency covering the 5G frequency band can be generated, so as to realize the design of the 5G antenna.
The control module can be arranged on a printed circuit board (Printed Circuit Board, PCB), and the resonant frequency of the antenna multiplexing system can be controlled to be 2G/3G/4G or 5G frequency bands through the switching module 13. The printed circuit board also comprises a 2/3/4/5G transmitting and receiving circuit module.
Further, the antenna multiplexing system further comprises at least two grounded antenna matching paths, the grounded antenna matching paths are connected with the switching module 13, and a matching circuit in the grounded antenna matching paths supports adjustment. In fig. 2, taking the example of the antenna multiplexing system including two grounded antenna matching paths, the antenna multiplexing system includes a third antenna matching path 18 and a fourth antenna matching path 19, where the third antenna matching path 18 and the fourth antenna matching path 19 are connected to the switching module 13.
The switching module 13 is a control switch including at least four channels, and in fig. 2, the switch including four channels is taken as an example, that is, the switching module 13 may be a Single-pole 4-Throw, SP4T switch in the drawing. A first channel in the switching module 13 is connected to the coupling parasitic element 15, a second channel is connected to the first antenna matching path 11, a third channel is connected to the third antenna matching path 18, and a fourth channel is connected to the fourth antenna matching path 19.
When the switching module 13 selects the first and third channels to be turned on, or the first and fourth channels to be turned on, the coupling parasitic element 15 and the antenna radiating stub 14 are coupled to each other through the first slit 16 therebetween, and by adjusting the inductance or capacitance of the matching circuit in the third antenna matching path 18 or the fourth antenna matching path 19, 2G/3G/4G high-frequency resonance with a resonance frequency of 2.3GHz-2.7GHz can be generated.
When the switching module 13 selects the first channel, the second channel, and the third channel, or the first channel, the second channel, and the fourth channel are turned on, resonance with a resonance frequency covering the 5G frequency band may be generated. And by setting the variable capacitor 111, the voltage of the variable capacitor 111 can be used for calling a proper voltage value from a preset register to form a tuning capacitor, so that the antenna resonance mode of the 5G frequency band can be improved, and the tuning amplitude is larger.
The third antenna matching path 18 and the fourth antenna matching path 19 have the same structure, but when the channels on which the switching module 13 is turned on are different, the values of the inductance or the capacitance in the matching circuit are different. When the resonant frequency of the antenna is 2G/3G/4G frequency band, if the switching module 13 selects the first channel and the third channel to be connected, the value of the inductance or the capacitance in the matching circuit in the third antenna matching channel 18 corresponds to 2G/3G/4G frequency band, and if the switching module 13 selects the first channel and the fourth channel to be connected, the value of the inductance or the capacitance in the matching circuit in the fourth antenna matching channel 19 corresponds to 2G/3G/4G frequency band. When the resonant frequency of the antenna is 5G frequency band, if the switching module 13 selects the first channel, the second channel and the third channel to be connected, the value of the inductance or the capacitance in the matching circuit in the third antenna matching path 18 corresponds to 5G frequency band, and if the switching module 13 selects the first channel, the second channel and the fourth channel to be connected, the value of the inductance or the capacitance in the matching circuit in the fourth antenna matching path 19 corresponds to 5G frequency band.
In this embodiment, the performance of the antenna in the 2G/3G/4G frequency band and the 5G frequency band can be optimized by adjusting the first matching circuit 112 in the first antenna matching path 11, the second matching circuit 121 in the second antenna matching path 12, and the matching circuits in the two grounded antenna matching paths.
Further, as shown in fig. 2, a second slot 17 is provided in the antenna radiating stub 14. The width of the first slot 16 between the coupling parasitic element 15 and the antenna radiating stub 14, the width of the second slot 17, the length of the antenna radiating stub 14 and the length of the coupling parasitic element 15 all support adjustment to further optimize the performance of the antenna in the 2G/3G/4G frequency band and the 5G frequency band. The width of the first slit 16 may be greater than 0.3 mm, and the length of the coupling parasitic element 15 may be 1/4 times the wavelength, where the wavelength passes the formulaThe antenna is obtained, wherein lambda represents wavelength, C represents light velocity in vacuum, the light velocity is 3 x 10 x 8m/s, F represents resonant frequency, F is between 2300MHz and 2700MHz, and epsilon is relative dielectric constant between antennas. A portion of the antenna radiating stub 14 is also grounded.
The adjustment process for optimizing the antenna performance may include a first step of calculating lengths of the antenna radiating branches 14 and the coupling parasitic unit 15, where lengths of two branches of the antenna radiating branches 14 in the 2G/3G/4G antenna body are respectively a size of 1/4 wavelength of a low-band bandwidth center frequency point and a size of 1/4 wavelength of a mid-band bandwidth center frequency point, and lengths of the coupling parasitic unit 15 are respectively a size of 1/4 wavelength of a high-band bandwidth center frequency point. And secondly, according to the return loss of the antenna, adjusting the length of the antenna radiation branch 14, the width of a second gap 17 between branches of the antenna radiation branch, the width of a first gap 16 between the coupling parasitic unit 15 and the antenna radiation branch 14, and adjusting a matching circuit in a fourth antenna matching path 19 (or a third matching path 18) to optimize the performance of the antenna in a 2G/3G/4G frequency band. Third, the performance of the antenna in the 5G band is optimized by adjusting the first matching circuit 112 in the first antenna matching path 11. Fourth, by adjusting the matching circuit in the third antenna matching path 18 (or the fourth matching path 19), the antenna form of the antenna in the 5G frequency band can be optimized or changed, and the monopole antenna (Monopole Antenna) is replaced by the inverted-F antenna (Inverted-F antenna, IFA) to realize the performance optimization.
Fig. 3 is a schematic diagram of return loss of an antenna according to an embodiment of the present application, which shows that the resonant frequency of the antenna can cover 2G/3G/4G frequency bands, and the resonant frequencies of 7 points indicated by arrows in the figure are 824.00MHz, 896.0MHz, 960.0MHz, 1.71GHz, 2.17GHz, 2.30GHz and 2.69GHz in order.
Fig. 4 is a schematic diagram of another return loss of an antenna according to an embodiment of the present application, where the resonant frequency of the antenna can cover a 5G frequency band on the basis of that shown in fig. 3, and the resonant frequencies of two points indicated by arrows in the figure are 4.4GHz and 5.0GHz in sequence.
In this embodiment, the antenna matching path of the 5G frequency band is connected to one branch (i.e., the coupling parasitic unit 15) of the 2G/3G/4G antenna, so as to implement antenna multiplexing according to different resonant frequencies of the 5G antenna and the 2G/3G/4G antenna, and on the premise of not sacrificing antenna efficiency, the requirements of the 5G antenna and the 2G/3G/4G antenna on the number of antennas can be met, and on the other hand, layout space can be saved, and the design requirements of terminal products can be met, so that the product has competitiveness in the market.
According to the technical scheme, a first antenna matching passage in the antenna multiplexing system is connected with a coupling parasitic unit through a switching module, the coupling parasitic unit is one branch in an antenna body corresponding to a second antenna matching passage, an antenna radiation branch in the antenna body is connected with the second antenna matching passage, when the control module is used for communicating the first antenna matching passage through the switching module, the resonant frequency of the first antenna matching passage can be generated, the resonant frequencies of the first antenna matching passage and the second antenna matching passage are different, multiplexing of the antennas is achieved, the requirement of various resonant frequencies on the number of the antennas is met on the premise that the antenna efficiency is not sacrificed, the bandwidth and the efficiency of the antennas are improved on the basis of saving layout space, and in the embodiment, the antenna resonant mode of a 5G frequency band can be improved through the arrangement of a variable capacitor, the tuning amplitude is larger, the design difficulty is further reduced, and the dependence of the antennas on the mobile phone space is reduced.
Fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in fig. 5, the terminal is configured with the antenna multiplexing system according to the above embodiment. In this embodiment, the terminal may be a mobile terminal.
Referring to fig. 5, the antenna radiating stub 14 is connected to a 2G/3G/4G receiving and transmitting circuit on the printed circuit board 22 through a second antenna matching path 12, the coupling parasitic element 15 is connected to a first antenna matching path 11 through a switching module 13, and the first antenna matching path 11 is connected to a 5G receiving and transmitting circuit and a main ground on the printed circuit board 22. The height of the antenna clearance 21 is not limited in the drawings, and may be set according to actual conditions. The resonance frequency of the first antenna matching path 11 is 3.2GHz-5GHz, namely, the first antenna matching path 11 corresponds to the 5G frequency band, and the resonance frequency of the second antenna matching path 12 is 0.7GHz-2.7GHz, so that the 2G/3G/4G frequency band can be covered.
The embodiment provides a terminal, and the antenna multiplexing system is configured on the terminal, so that the antenna layout is more reasonable, the requirement of the resonant frequencies of the 2G/3G/4G frequency band and the 5G frequency band on the number of the antennas can be met on the premise that the efficiency of the antennas is not sacrificed, and the bandwidth and the efficiency of the antennas are improved on the basis of saving layout space.
Note that the above is only a preferred embodiment of the present application and the technical principle applied. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, while the application has been described in connection with the above embodiments, the application is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the application, which is set forth in the following claims.
Claims (6)
1. The antenna multiplexing system is characterized by comprising an antenna body, a first antenna matching passage, a second antenna matching passage, a switching module, a control module and at least two grounded antenna matching passages, wherein the first antenna matching passage and the second antenna matching passage are different in resonant frequency, the control module is connected with the switching module, the antenna body comprises an antenna radiation branch and a coupling parasitic unit, the coupling parasitic unit is connected with the first antenna matching passage through the switching module, the antenna radiation branch is connected with the second antenna matching passage, the coupling parasitic unit and the antenna radiation branch are mutually coupled through a first gap between the coupling parasitic unit and the antenna radiation branch to generate resonance, the length of the coupling parasitic unit is the size of 1/4 wavelength of a high-frequency band bandwidth center frequency point, the grounded antenna matching passage is connected with the switching module, and a matching circuit in the grounded antenna matching passage supports adjustment, and the switching module is a control switch comprising at least four channels;
The first antenna matching path comprises a variable capacitor, a first matching circuit and a first feeding point connected with the first matching circuit, the second antenna matching path comprises a second matching circuit and a second feeding point connected with the second matching circuit, no circuit is connected between the first feeding point and the second feeding point, the first antenna matching path corresponds to a 5G frequency band, the resonant frequency of the first antenna matching path is 3.2GHz-5GHz, the second antenna matching path corresponds to a 2G-4G frequency band, and the resonant frequency of the second antenna matching path is 0.7GHz-2.7GHz.
2. The antenna multiplexing system of claim 1, wherein one end of the variable capacitor is connected to the switching module, and the other end of the variable capacitor is connected to the first matching circuit, and the variable capacitor is used to tune a resonant frequency.
3. The antenna multiplexing system of claim 1, wherein the antenna radiating stub is provided with a second slot.
4. The antenna multiplexing system of claim 3 wherein the width of the first slot, the width of the second slot, the length of the antenna radiating stub, and the length of the coupling parasitic element all support adjustment.
5. The antenna multiplexing system of claim 1, wherein the width of the first slot is greater than 0.3 millimeters.
6. A terminal, characterized in that it is provided with an antenna multiplexing system according to any of claims 1-5.
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| CN201911159425.6A CN112838371B (en) | 2019-11-22 | 2019-11-22 | Antenna multiplexing system and terminal |
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| CN113471681B (en) * | 2021-07-02 | 2023-09-26 | 安徽安努奇科技有限公司 | Multi-form antenna structure and electronic equipment |
| CN114843783B (en) * | 2022-07-06 | 2022-10-25 | 展讯通信（上海）有限公司 | Antenna module, antenna device and terminal |
| CN116130961A (en) * | 2023-02-23 | 2023-05-16 | 歌尔股份有限公司 | Electronic equipment |
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| WO2017185493A1 (en) * | 2016-04-27 | 2017-11-02 | 广东欧珀移动通信有限公司 | Antenna apparatus and mobile terminal |
| CN107959120A (en) * | 2016-10-17 | 2018-04-24 | 比亚迪股份有限公司 | Reconfigurable antenna and mobile terminal |
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| CN208797170U (en) * | 2016-11-29 | 2019-04-26 | 株式会社村田制作所 | Antenna device |
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| CN102856639A (en) * | 2012-09-04 | 2013-01-02 | 中兴通讯股份有限公司 | Antenna of cell phone, and processing method and device for antenna to receive signals |
| WO2017185493A1 (en) * | 2016-04-27 | 2017-11-02 | 广东欧珀移动通信有限公司 | Antenna apparatus and mobile terminal |
| CN107959120A (en) * | 2016-10-17 | 2018-04-24 | 比亚迪股份有限公司 | Reconfigurable antenna and mobile terminal |
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