CN213184604U - Antenna system - Google Patents
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- CN213184604U CN213184604U CN202022170268.3U CN202022170268U CN213184604U CN 213184604 U CN213184604 U CN 213184604U CN 202022170268 U CN202022170268 U CN 202022170268U CN 213184604 U CN213184604 U CN 213184604U
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Abstract
An antenna system comprises a feed source module, a combiner module and a radiation unit array, wherein the combiner module is electrically connected with the radiation unit array and the feed source module respectively, and the feed source module at least comprises a first feed source and a second feed source; the combiner module at least comprises a first combiner and a second combiner; the radiation unit array at least comprises a first radiation unit and a second radiation unit, the first radiation unit is electrically connected to the first feed source and/or the second feed source through the first combiner, and the second radiation unit is electrically connected to the first feed source and/or the second feed source through the second combiner. The antenna system effectively relieves the site resources, improves the system capacity and can realize multi-frequency one-time deployment.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an antenna system.
Background
This section is intended to provide a background or context to the embodiments of the application that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
With the rapid development of mobile communications, there is an increasing need for capacity expansion to meet the ever-increasing demand of mobile users. At present, the multi-beam antenna technology has a wide application prospect as an effective capacity expansion means. At the same time, operators still need to use conventional 65 ° horizontal lobe wide base station antennas for cell coverage. Therefore, a hybrid antenna is needed to simultaneously implement two antenna coverage methods.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide an antenna system to simultaneously implement two antenna signal coverage modes.
An antenna system comprises a feed module, a combiner module and a radiation unit array, wherein the combiner module is electrically connected with the radiation unit array and the feed module respectively,
the feed source module at least comprises a first feed source and a second feed source;
the combiner module at least comprises a first combiner and a second combiner;
the radiation unit array at least comprises a first radiation unit and a second radiation unit, the first radiation unit is electrically connected to the first feed source and/or the second feed source through the first combiner, and the second radiation unit is electrically connected to the first feed source and/or the second feed source through the second combiner.
Further, the first feed source is configured to output at least one first signal to feed into the first radiation unit or the second radiation unit, the second feed source is configured to output at least one second signal to feed into the second radiation unit or the first radiation unit, and the first signal and the second signal have a common working frequency band.
Further, the first feed source and the second feed source both include a first output interface and a second output interface, the first combiner and the second combiner both include a first input interface, a second input interface, and a combined output interface, the first output interface is electrically connected to the first input interface, the second output interface is electrically connected to the second input interface, and the combined output interface is electrically connected to the first radiation unit or the second radiation unit.
Further, when the first radiation unit is electrically connected to the first feed source through the first combiner, a first output interface and a second output interface of the first feed source are electrically connected to a first input interface and a second input interface of the first combiner, respectively, and a combined output interface of the first combiner is electrically connected to the first radiation unit.
Further, the first feed source is a 65-degree horizontal lobe width feed network, the second feed source is a multi-beam feed network or a dual-beam feed network, and a butler matrix module is further connected between the second feed source and the combiner module.
Further, the butler matrix module includes a first butler matrix and a second butler matrix, the first butler matrix and the second butler matrix both include a first side interface and a second side interface, the first side interface of the first butler matrix is electrically connected to the first output interface of the second feed source, the first side interface of the second butler matrix is electrically connected to the second output interface of the second feed source, and the second side interface of the first butler matrix and the second butler matrix is electrically connected to the first combiner and/or the second combiner.
Further, when the second radiation unit is electrically connected to the second feed source through the second combiner, the second side interface of the first butler matrix is electrically connected to the first input interface of the second combiner, the second side interface of the second butler matrix is electrically connected to the second input interface of the second combiner, and the combined output interface of the second combiner is electrically connected to the second radiation unit.
Further, when the first radiation unit and the second radiation unit are both electrically connected to the first feed source and the second feed source, a first output interface of the first feed source is electrically connected to a first input interface of the first combiner, a second output interface of the first feed source is electrically connected to a second input interface of the second combiner, a second side interface of the first butler matrix is electrically connected to a first input interface of the second combiner, a second side interface of the second butler matrix is electrically connected to a second input interface of the first combiner, a combining output interface of the first combiner is electrically connected to the first radiation unit, and a combining output interface of the second combiner is electrically connected to the second radiation unit.
Furthermore, signals output by the first output interface of the first feed source and the first output interface of the second feed source have the same working frequency band, and signals output by the second output interface of the first feed source and the second output interface of the second feed source have the same working frequency band.
Furthermore, the first output interface of the first feed source and the first output interface of the second feed source output electric signals of a first working frequency range respectively, the second output interface of the first feed source and the second output interface of the second feed source output electric signals of a second working frequency range respectively, the first radiation unit and the working frequency range of the second radiation unit are a third working frequency range, and the third working frequency range comprises the first working frequency range and the second working frequency range.
The radiating element array in the antenna system at least comprises a first radiating element and a second radiating element. The first radiation unit and the second radiation unit are electrically connected to the first feed source and/or the second feed source through a first combiner and a second combiner respectively. The first combiner and the second combiner are used for combining the electric signals of a plurality of frequency bands output by the first feed source and/or the second feed source into one path of signal to feed into the first radiation unit or the second radiation unit, and the first radiation unit or the second radiation unit which is correspondingly connected transmits the antenna signal of the corresponding frequency band, so that simultaneous coverage and multi-frequency one-time deployment of two antenna signals are realized.
Drawings
The present application will be described in further detail with reference to the following drawings and detailed description.
Fig. 1 is a block diagram of an antenna system according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an antenna system according to a first embodiment of the present application.
Fig. 3 is a schematic structural diagram of an antenna system according to a second embodiment of the present application.
Description of the main element symbols:
A first feed 11
A second feed 12
Combiner module 20
First combiner module 210
First combiner 211
Second combiner module 220
Second combiner 221
Array of radiating elements 30
First array of radiating elements 310
Second array of radiating elements 320
Butler matrix module 40
A first Butler matrix 41
A second butler matrix 42
The following detailed description will further describe embodiments of the present application in conjunction with the above-described figures.
Detailed Description
In order that the above objects, features and advantages of the embodiments of the present application can be more clearly understood, the present application will be described below with reference to the accompanying drawings and detailed description. In addition, the features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments of the application, and the described embodiments are merely a subset of embodiments of the application, rather than all embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of this application belong. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application.
Referring to fig. 1, an antenna system 100 includes a feed module 10, a combiner module 20, and a radiation unit array 30. Two ends of the combiner module 20 are electrically connected to the feed module 10 and the radiating element array 30, respectively.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an antenna system 100 according to a first embodiment of the present invention. The feed module 10 is used for feeding different types and different frequency bands of electrical signals into the radiating element array 30 through the combiner module 20.
The feed module 10 at least comprises a first feed 11 and a second feed 12. The first feed 11 comprises at least a first output interface F1With a second output interface F2. The second feed 12 comprises at least a first output interface T1With a second output interface T2。
Wherein, the first output interface F of the first feed source 111With a second output interface F2A first output interface T of said second feed 121With a second output interface T2Each of the two electrical signals has a corresponding working frequency band.
The combiner module 20 is configured to combine signals of a plurality of frequency bands input by the feed module 10 into a single signal, and feed the single signal into the radiation unit array 30, so as to implement multiplexing of radiation units on the radiation unit array 30, and avoid the trouble of switching different antennas.
The combiner module 20 at least includes a first combinerA module 210 and a second combiner module 220. The first combiner module 210 at least includes a first combiner 211, and the second combiner module 220 at least includes a second combiner 221. The first combiner 211 and the second combiner 221 each include a combining output interface S0A first input interface S1And a second input interface S2. It will be appreciated that the first input interface S1And a second input interface S2Respectively receiving electric signals in a corresponding frequency band. The combined output interface S0For outputting a combined electrical signal, which is the first input interface S1And a second input interface S2A combined signal of the received electrical signals.
The radiation element array 30 refers to an antenna array formed by a plurality of radiation elements arranged according to a certain rule. The array of radiating elements 30 includes rows and columns. Each row of the array of radiating elements 30 may include a number of the radiating elements and each column of the array of radiating elements 30 may include a number of the radiating elements. The radiation unit refers to a device capable of efficiently radiating or receiving radio waves.
The radiation element array 30 includes at least a first radiation element array 310 and a second radiation element array 320. It is understood that the first radiation element array 310 or the second radiation element array 320 refers to one or several rows of the radiation elements in the radiation element array 30, and may also refer to one or several rows of the radiation elements in the radiation element array 30. The radiation unit is a broadband radiation unit.
The first radiating element array 310 includes at least a first radiating element 311, and the second radiating element array 320 includes at least a second radiating element 321. The first radiation unit 311 is electrically connected to the first feed 11 and/or the second feed 12 through the first combiner 211. The second radiation unit 321 is electrically connected to the first feed 11 and/or the second feed 12 through the second combiner 221.
It is understood that the radiation unit includes the first radiation unit 311 and the second radiation unit 321. And the first radiation unit 311 and the second radiation unit 321 are also broadband radiation units.
Further, the first radiation unit 311 and the second radiation unit 321 are dual-polarized oscillators, and include two oscillators with mutually orthogonal polarization directions (for example, two black and white squares in fig. 1 represent two oscillators with mutually orthogonal polarization directions). The utility model discloses do not do the restriction to the polarization direction, for example, two polarization directions of mutually orthogonalizing can be +45 and-45, also can be +90 and 0, also can be +60 and-30.
It is understood that the first feed 11 and the second feed 12 are both used for feeding electrical signals to the first radiation unit 311 and/or the second radiation unit 321.
Further, the first feed 11 outputs at least one first signal to feed into the first radiation unit 311 or the second radiation unit 321. The second feed 12 is configured to output at least one second signal to feed into the second radiation unit 321 or the first radiation unit 311. The first signal and the second signal have a common working frequency band. Thus, the antenna system 100 can simultaneously implement at least two antenna feeding modes in the same preset frequency band, so that at least two antenna signal coverage modes are compatible in the same preset frequency band.
It is understood that, in the present embodiment, the first output interface F1And said first input interface S1Output electrical signal, and the first input interface S1The received electrical signals have the same operating frequency band. The second output interface F2And said second output interface T2Output electrical signal, with second input interface S2The received electrical signals have the same operating frequency band. Thus, the first output interface F1Is electrically connected to the first input interface S1Said first output interface T1Is electrically connected to the first input interface S1. The second output interface F2Is electrically connected to the second input interface S2Said second output interface T2Is electrically connected toThe second input interface S2. The combined output interface S0Is electrically connected to the first radiation unit 311 or the second radiation unit 321.
In this embodiment, the first feed 11 is a 65 ° horizontal lobe width feed module. And the first radiating element array 310 is electrically connected to the first feed 11 through the first combiner module 210. The second radiating element array 320 is electrically connected to the second feed source 12 through the second combiner module 220. That is, the first radiation unit 311 is electrically connected to the first feed 11 through the first combiner 211, and the second radiation unit 321 is electrically connected to the second feed 12 through the second combiner 221.
When the first radiation unit 311 is electrically connected to the first feed 11 through the first combiner 211, the first output interface F of the first feed 111A first input interface S electrically connected to the first combiner 2111. A second output interface F of the first feed 112A second input interface S electrically connected to the first combiner 2112. The combining output interface S of the first combiner 2110Is electrically connected to the first radiating element 311.
In this embodiment, the second feed source 12 is a multi-beam feed network or a dual-beam feed network. In this way, a butler matrix module 40 is further connected between the second feed source 12 and the second combiner module 220.
The butler matrix module 40 at least includes a first butler matrix 41 and a second butler matrix 42. It is understood that the first butler matrix 41 and the second butler matrix 42 are used in a multi-beam feeding network, so that the first radiation unit 311 and the second radiation unit 321 connected to each other form antenna beams with different directions.
In this embodiment, the first butler matrix 41 has a first side interface Q1And a second side interface Q2. The second Butler matrix 42 has a first side interface R1And a second side interface R2. It is understood that the first butler matrix 41 and the second butler matrix 42 have different valuesAnd the working frequency bands of the first butler matrix 41 and the second butler matrix 42 respectively correspond to the first output interface S of the second feed source 121And a second output interface S2The operating frequency band of the output signal.
In this way, when the second radiation unit 321 is electrically connected to the second feed source 12 through the second combiner 221, the first side interface Q of the first butler matrix 411A first output interface S with said second feed 121Electrically connected to the second side interface Q of said first Butler matrix 412And is electrically connected to the first input interface of the second combiner 221. A first side interface R of the second Butler matrix 421A second output interface S with said second feed 122Electrically connected to a second side interface R of said second Butler matrix 422A second input interface S with the second combiner 2212And (6) electrically connecting.
In this embodiment, the first output interface F of the first feed 111A first output interface T with the second feed 121The output signals have the same working frequency band, and the second output interface F of the first feed source 112A second output interface T with said second feed 122The output signals have the same operating frequency band.
Further, the first output interface F of the first feed 111A first output interface T with the second feed 121Respectively outputting the electric signals of the first working frequency band. A second output interface F of the first feed 112A second output interface T with said second feed 122And respectively outputting the electric signals of the second working frequency band. The working frequency bands of the first radiating unit 311 and the second radiating unit 321 are a third working frequency band, and the third working frequency band includes the first working frequency band and the second working frequency band.
In this way, when the first feed 11 feeds an electrical signal to the first radiation unit 311 in the first radiation unit array 310 through the first combiner module 210, the first radiation unit 311 may generate a 65 ° horizontal lobe width signal of the first working frequency band and the second working frequency band. When the second feed source 12 feeds an electrical signal to the second radiation unit 321 in the second radiation unit array 320 through the second combiner module 220, the second radiation unit 321 may generate multi-beam signals of the first operating frequency band and the second operating frequency band. That is, the radiation unit array 30 can generate a 65 ° horizontal lobe width signal and a multi-beam signal of the first operating frequency band, and the radiation unit array 30 can also generate a 65 ° horizontal lobe width signal and a multi-beam signal of the second operating frequency band, thereby realizing that the 65 ° horizontal lobe width and the multi-beam antenna signal coverage are compatible at the same frequency band, and effectively improving the system capacity and relieving the site resources.
In this embodiment, the working frequency ranges of the first radiation unit and the second radiation unit are 1400-2690 MHz. A first output interface F of the first feed 111And a first output interface T of said second feed 121The working frequency range of the output signal is 1400-2200MHz, and the second output interface F of the first feed source 112And a second output interface T of said second feed 122The working frequency range of the output signal is 2490-2690 MHz.
It can be understood that the radiation unit array 30 may also be configured to receive a signal, and perform frequency division output on the received signal through the combiner module 20, so as to transmit a signal in a corresponding frequency band to the first feed 11 or the second feed 12, thereby implementing fusion multiplexing of different types of antennas.
It is understood that the number of the first combiners 211 in the first combiner module 210 is the same as the number of the first radiation elements 311 in the first radiation element array 310, and the number of the second combiners 221 in the second combiner module 220 is the same as the number of the second radiation elements 321 in the second radiation element array 320.
It is understood that the total number of the first butler matrix 41 and the second butler matrix 42 corresponds to the number of output interfaces of the second feed 12.
It is understood that, in other embodiments, the first radiation element array 310 and the second radiation element array 320 are not limited to the row arrangement or the column arrangement in the radiation element array 30. In other embodiments, the first radiating element array 310 and the second radiating element array 320 may be other radiating elements in the radiating element array 30. For example, the first radiation element array 310 and the second radiation element array 320 may be rectangular arrays of radiation elements composed of several rows and columns in the radiation element array 30. It can be understood that those skilled in the art can flexibly divide the radiation element array according to the antenna beam direction requirement or the lobe width requirement in the actual engineering requirement.
It is understood that in other embodiments, the first radiating element array 310 may be electrically connected to the second feed 12 through the first combiner module 210, and the second radiating element array 320 may be electrically connected to the first feed 11 through the second combiner module 220. That is, the first radiation unit 311 may be electrically connected to the second feed 12 through the first combiner 211, and the second radiation unit 321 may be electrically connected to the first feed 11 through the second combiner 221.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an antenna system 100 according to a second embodiment of the present invention. In this embodiment, the structural schematic diagram of the antenna system 100 is substantially the same as the structure of the antenna system 100 in the second embodiment shown in fig. 2.
The difference between the two is that: in this embodiment, the first radiating element array 310 and the second radiating element array 320 are electrically connected to the first feed 11 and the second feed 12 through the first combiner module 210 and the second combiner module 220. That is, the first radiation unit 311 is electrically connected to the first feed 11 and the second feed 12 through the first combiner 211, and the second radiation unit 321 is electrically connected to the first feed 11 and the second feed 12 through the second combiner 221.
In this embodiment, the first output interface F of the first feed 111A first input interface S with each of the first combiners 211 in the first combiner module 2101An electrical connection, the firstSecond output interface F of feed 112A second input interface S with each of the second combiners 221 in the second combiner module 2202And (6) electrically connecting. A first input interface T of the second feed source 121And a second input interface T2Respectively connected to the first side interfaces Q of the first Butler matrix 411And a first side interface R of the second Butler matrix 421And (6) electrically connecting. Second side interface Q of the first Butler matrix 412A first input interface S with each second combiner 221 of the second combiner module 2201And (6) electrically connecting. A second side interface R of the second Butler matrix 422A second input interface S with each first combiner 211 in the first combiner module 2102And (6) electrically connecting. A combining output interface S of each of the first combiners 211 in the first combiner module 2100Electrically connected to each first radiating element 311 in the first array of radiating elements 310. A combining output interface S of each second combiner 221 of the second combiner module 2200Electrically connected to each second radiating element 321 in the second radiating element array 320.
In this way, when the first feed 11 and the second feed 12 feed the first radiation unit 311 through the first combiner 211, the first radiation unit 311 may generate a 65 ° horizontal lobe width signal of the first operating frequency band and a multi-beam signal of the second operating frequency band. When the first feed 11 and the second feed 12 feed electric signals to the second radiation unit 321 through the second combiner 221, the second radiation unit 321 may generate a multi-beam signal of the first operating frequency band and a 65 ° horizontal lobe width signal of the second operating frequency band. That is, the radiation unit array 30 can generate a 65 ° horizontal lobe width signal and a multi-beam signal of the first operating frequency band, and the radiation unit array 30 can also generate a 65 ° horizontal lobe width signal and a multi-beam signal of the second operating frequency band, thereby realizing that the 65 ° horizontal lobe width and the multi-beam antenna signal coverage are compatible at the same frequency band, and effectively improving the system capacity and relieving the site resources.
It can be understood that the radiation element array 30 of the present invention at least includes the first radiation element 311 and the second radiation element 321. The first radiation unit 311 and the second radiation unit 321 are electrically connected to the first feed 11 and/or the second feed 12 through the first combiner 211 and the second combiner 221, respectively. The first combiner 211 and the second combiner 221 are configured to combine the electrical signals of multiple frequency bands output by the first feed 11 and/or the second feed 12 into one signal, feed the one signal into the first radiation unit 311 or the second radiation unit 321, and transmit the antenna signal of the corresponding frequency band by the first radiation unit 311 or the second radiation unit 321 connected correspondingly, thereby implementing simultaneous coverage and multi-frequency one-time deployment of two antenna signals. The first feed source 11 and the second feed source 12 are used for outputting at least one electric signal with the same frequency band, so that two antenna covering modes can be realized on a preset frequency band; furthermore, the first feed source 11 is a 65-degree horizontal lobe width feed source module, and the second feed source 12 is a multi-beam feed network, so that the 65-degree horizontal lobe width and multi-beam antenna signal coverage can be compatible on the same frequency band, and system capacity and site resource mitigation are effectively improved.
Although the embodiments of the present application have been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the embodiments of the present application.
Claims (10)
1. An antenna system, characterized by: comprises a feed source module, a combiner module and a radiation unit array, wherein the combiner module is electrically connected with the radiation unit array and the feed source module respectively,
the feed source module at least comprises a first feed source and a second feed source;
the combiner module at least comprises a first combiner and a second combiner;
the radiation unit array at least comprises a first radiation unit and a second radiation unit, the first radiation unit is electrically connected to the first feed source and/or the second feed source through the first combiner, and the second radiation unit is electrically connected to the first feed source and/or the second feed source through the second combiner.
2. The antenna system of claim 1, wherein: the first feed source is used for outputting at least one first signal to feed into the first radiation unit or the second radiation unit, the second feed source is used for outputting at least one second signal to feed into the second radiation unit or the first radiation unit, and the first signal and the second signal have a common working frequency band.
3. The antenna system of claim 1, wherein: the first feed source and the second feed source both comprise a first output interface and a second output interface, the first combiner and the second combiner both comprise a first input interface, a second input interface and a combined output interface, the first output interface is electrically connected to the first input interface, the second output interface is electrically connected to the second input interface, and the combined output interface is electrically connected to the first radiation unit or the second radiation unit.
4. The antenna system of claim 3, wherein: when the first radiation unit is electrically connected to the first feed source through the first combiner, a first output interface and a second output interface of the first feed source are respectively electrically connected to a first input interface and a second input interface of the first combiner, and a combined output interface of the first combiner is electrically connected to the first radiation unit.
5. The antenna system of claim 3, wherein: the first feed source is a 65-degree horizontal lobe width feed network, the second feed source is a multi-beam feed network or a dual-beam feed network, and a Butler matrix module is further connected between the second feed source and the combiner module.
6. The antenna system of claim 5, wherein: the butler matrix module comprises a first butler matrix and a second butler matrix, the first butler matrix and the second butler matrix both comprise a first side interface and a second side interface, the first side interface of the first butler matrix is electrically connected to the first output interface of the second feed source, the first side interface of the second butler matrix is electrically connected to the second output interface of the second feed source, and the second side interface of the first butler matrix and the second butler matrix is electrically connected to the first combiner and/or the second combiner.
7. The antenna system of claim 6, wherein: when the second radiation unit is electrically connected to the second feed source through the second combiner, the second side interface of the first butler matrix is electrically connected to the first input interface of the second combiner, the second side interface of the second butler matrix is electrically connected to the second input interface of the second combiner, and the combining output interface of the second combiner is electrically connected to the second radiation unit.
8. The antenna system of claim 6, wherein: when the first radiation unit and the second radiation unit are both electrically connected to the first feed source and the second feed source, a first output interface of the first feed source is electrically connected to a first input interface of the first combiner, a second output interface of the first feed source is electrically connected to a second input interface of the second combiner, a second side interface of the first butler matrix is electrically connected to a first input interface of the second combiner, a second side interface of the second butler matrix is electrically connected to a second input interface of the first combiner, a combining output interface of the first combiner is electrically connected to the first radiation unit, and a combining output interface of the second combiner is electrically connected to the second radiation unit.
9. The antenna system of claim 7, wherein: the signals output by the first output interface of the first feed source and the first output interface of the second feed source have the same working frequency band, and the signals output by the second output interface of the first feed source and the second output interface of the second feed source have the same working frequency band.
10. The antenna system of claim 3, wherein: the first output interface of the first feed source and the first output interface of the second feed source output electric signals of a first working frequency range respectively, the second output interface of the first feed source and the second output interface of the second feed source output electric signals of a second working frequency range respectively, the first radiation unit and the working frequency range of the second radiation unit are a third working frequency range, and the third working frequency range comprises the first working frequency range and the second working frequency range.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134033A (en) * | 2020-09-28 | 2020-12-25 | 中天通信技术有限公司 | Hybrid antenna |
| WO2023005752A1 (en) * | 2021-07-30 | 2023-02-02 | 华为技术有限公司 | Antenna array and communication device |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134033A (en) * | 2020-09-28 | 2020-12-25 | 中天通信技术有限公司 | Hybrid antenna |
| WO2023005752A1 (en) * | 2021-07-30 | 2023-02-02 | 华为技术有限公司 | Antenna array and communication device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |