CN212626071U - Phased array antenna and communication equipment - Google Patents
Phased array antenna and communication equipment Download PDFInfo
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- CN212626071U CN212626071U CN202022064539.7U CN202022064539U CN212626071U CN 212626071 U CN212626071 U CN 212626071U CN 202022064539 U CN202022064539 U CN 202022064539U CN 212626071 U CN212626071 U CN 212626071U
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Abstract
The application provides a phased array antenna and communication equipment. The phased array antenna comprises a beamforming chip, a coupling layer and a radiation surface, wherein a horizontal polarization feeder line and a vertical polarization feeder line are arranged in the coupling layer, a first end and a second end of the beamforming chip are respectively connected with the horizontal polarization feeder line and the vertical polarization feeder line, and the coupling layer is used for coupling output signals of the horizontal polarization feeder line and the vertical polarization feeder line and radiating the coupled signals to the radiation surface; the radiation surface is used for radiating the received signal; the beam forming chip is used for adjusting the amplitude and the phase of the output signals of the first end and the second end so as to adjust the amplitude and the phase of the output signals of the horizontal polarization feeder line and the vertical polarization feeder line, and therefore the polarization of the coupled signals is changed. Therefore, the requirement of full polarization can be met, the polarization mode can be switched at will, and the hardware equipment is less in use and lower in cost.
Description
Technical Field
The application relates to the field of antennas, in particular to a phased array antenna and communication equipment.
Background
Communication is an important factor for the development of society and human progress. People also pay great attention to the quality of communication. In the current technical environment, phased array antennas are involved in satellites or radars that may be used in communications. Phased array antennas have a variety of polarization modes, such as left-hand circular polarization, right-hand circular polarization, horizontal polarization, vertical polarization, and the like. But currently only one or two polarizations can be implemented in phased array antennas.
In the field of satellite communication, different beams are provided within the coverage area of a satellite, and the polarization mode corresponding to each beam is different. Polarization modes are different among different satellites, and when the phased array antenna is used in a cross-region mode, the polarization modes also need to be switched. The development of a phased array antenna with arbitrarily switchable polarization to meet the use requirements of any different polarization scenarios becomes a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the present application is to provide a phased array antenna and a communication apparatus, so as to solve the above problems.
In order to achieve the above purpose, the embodiments of the present application employ the following technical solutions:
in a first aspect, an embodiment of the present application provides a phased array antenna, where the phased array antenna includes a beamforming chip, a coupling layer, and a radiation surface, where the coupling layer is provided with a horizontal polarization feeder and a vertical polarization feeder, and a first end and a second end of the beamforming chip are connected to the horizontal polarization feeder and the vertical polarization feeder, respectively;
the coupling layer is used for coupling output signals of the horizontal polarization feeder line and the vertical polarization feeder line and radiating the coupled signals to the radiation surface;
the radiation surface is used for radiating the received signals;
the beam forming chip is used for adjusting the amplitude and the phase of the output signals of the first end and the second end so as to adjust the amplitude and the phase of the output signals of the horizontal polarization feeder line and the vertical polarization feeder line, and therefore the polarization of the coupled signals is changed.
Optionally, the phased array antenna further comprises a processor, the processor connected with the beamforming chip,
the processor is configured to generate a corresponding signal adjustment instruction according to a polarization scene of a demand, and transmit the signal adjustment instruction to the beamforming chip, so that the beamforming chip adjusts the amplitude and the phase of the output signals of the first end and the second end according to the signal adjustment instruction;
the signal adjusting instruction comprises a first target phase, a first target amplitude, a second target phase and a second target amplitude, wherein the first target phase and the first target amplitude are respectively a phase and an amplitude corresponding to the output signal of the first end, and the second target phase and the second target amplitude are respectively a phase and an amplitude corresponding to the output signal of the second end.
Optionally, when the polarized scene is horizontally polarized;
the second target phase is 0 °; the second target amplitude is 0.
Optionally, when the polarized scene is vertically polarized;
the first target phase is 0 °; the first target amplitude is 0.
Optionally, when the polarization scene is left-hand circular polarization;
the first target phase lags the second target phase by 90 °; the first target amplitude is equal to the second target amplitude.
Optionally, when the polarization scene is right-hand circular polarization;
the first target phase leads the second target phase by 90 °; the first target amplitude is equal to the second target amplitude.
Optionally, when the polarization scene is cross-polarized, an included angle between the cross-polarization and the horizontal polarization is c;
when c >0 ° and c < 45 °;
a first target phase K; a second target phase K;
a first target amplitude ═ M; a second target amplitude M tan (c);
when c is more than or equal to 45 degrees and c is less than 90 degrees;
a first target phase K; a second target phase K;
a first target amplitude M tan (90-c); a second target amplitude ═ M;
when c >90 ° and c < 135 °;
a first target phase K +180 °; a second target phase K;
a first target amplitude M tan (c-90); a second target amplitude ═ M;
when c is more than or equal to 135 degrees and c is less than 180 degrees;
a first target phase K +180 °; a second target phase K;
a first target amplitude ═ M; a second target amplitude of M tan (180-c);
where K represents the reference phase and M represents the reference amplitude.
Optionally, the phased array antenna further includes a feeder layer, the feeder layer includes at least two feeders, and the first end and the second end are connected to the horizontally polarized feeder and the vertically polarized feeder through different feeders, respectively.
In a second aspect, the present application provides a communication device including the phased array antenna as described above.
Compared with the prior art, the phased array antenna and the communication equipment provided by the embodiment of the application have the beneficial effects that: the phased array antenna comprises a beamforming chip, a coupling layer and a radiation surface, wherein a horizontal polarization feeder line and a vertical polarization feeder line are arranged in the coupling layer, a first end and a second end of the beamforming chip are respectively connected with the horizontal polarization feeder line and the vertical polarization feeder line, and the coupling layer is used for coupling output signals of the horizontal polarization feeder line and the vertical polarization feeder line and radiating the coupled signals to the radiation surface; the radiation surface is used for radiating the received signal; the beam forming chip is used for adjusting the amplitude and the phase of the output signals of the first end and the second end so as to adjust the amplitude and the phase of the output signals of the horizontal polarization feeder line and the vertical polarization feeder line, and therefore the polarization of the coupled signals is changed. The amplitude and the phase of output signals of the horizontal polarization feeder line and the vertical polarization feeder line are quickly and flexibly adjusted through the beamforming chip, so that the requirement of full polarization can be met, and the polarization mode can be switched at will. Meanwhile, compared with a polarization switching mode in the prior art, the polarization switching method has the advantages of less hardware equipment and lower cost.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and it will be apparent to those skilled in the art that other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a phased array antenna provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of another phased array antenna provided in an embodiment of the present application;
fig. 3 is a schematic view of a polarization scenario provided by an embodiment of the present application;
fig. 4 is a schematic view of another polarization scenario provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of another phased array antenna provided in an embodiment of the present application;
fig. 6 is a schematic flowchart of an antenna control method according to an embodiment of the present application;
fig. 7 is a flowchart illustrating another antenna control method according to an embodiment of the present application.
In the figure: 10-a radiation surface; a 20-coupling layer; 201-horizontally polarized feed line, 202-vertically polarized feed line; 30-a feeder layer; 40-a beamforming chip; 50-a processor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Phased array antennas have a variety of polarization modes, such as left-hand circular polarization, right-hand circular polarization, horizontal polarization, vertical polarization, and the like. In the field of satellite communication, different beams are provided within the coverage area of a satellite, and the polarization mode corresponding to each beam is different. Polarization modes are different among different satellites, and when the phased array antenna is used in a cross-region mode, the polarization modes also need to be switched. But currently only one or two polarizations can be implemented in phased array antennas. A single polarization mode obviously cannot meet the requirements of increasingly complex polarization scenes.
Referring to fig. 1, fig. 1 is a schematic connection diagram of a phased array antenna according to an embodiment of the present disclosure. As shown in fig. 1, the phased array antenna includes a beamforming chip 40, a coupling layer 20 and a radiation surface 10, a horizontal polarization feeder 201 and a vertical polarization feeder 202 are disposed in the coupling layer 20, and a first end and a second end of the beamforming chip 40 are connected to the horizontal polarization feeder 201 and the vertical polarization feeder 202, respectively.
The coupling layer 20 is used to couple output signals of the horizontally polarized feed line 201 and the vertically polarized feed line 202 and radiate the coupled signals to the radiation surface 10.
The radiation surface 10 is used to radiate the received signal.
The beamforming chip 40 is used to adjust the amplitude and phase of the output signals of the first terminal and the second terminal to adjust the amplitude and phase of the output signals of the horizontal polarization feed line 201 and the vertical polarization feed line 202, thereby changing the polarization of the coupled signals.
Specifically, because the first terminal and the second terminal of the beamforming chip 40 are respectively connected to the horizontal polarization feed line 201 and the vertical polarization feed line 202, the amplitude and the phase of the output signals of the first terminal and the second terminal can be adjusted, so that the amplitude and the phase of the output signals of the horizontal polarization feed line 201 and the vertical polarization feed line 202 can be adjusted, the polarization of the coupled signals can be changed, the requirement of full polarization can be met, and the polarization mode can be switched arbitrarily. Hardware equipment in the existing polarization switching is reduced, and cost is reduced.
To sum up, in the phased array antenna provided in the embodiment of the present application, the phased array antenna includes a beamforming chip, a coupling layer, and a radiation surface, a horizontal polarization feeder and a vertical polarization feeder are disposed in the coupling layer, a first end and a second end of the beamforming chip are respectively connected to the horizontal polarization feeder and the vertical polarization feeder, and the coupling layer is configured to couple output signals of the horizontal polarization feeder and the vertical polarization feeder, and radiate the coupled signals to the radiation surface; the radiation surface is used for radiating the received signal; the beam forming chip is used for adjusting the amplitude and the phase of the output signals of the first end and the second end so as to adjust the amplitude and the phase of the output signals of the horizontal polarization feeder line and the vertical polarization feeder line, and therefore the polarization of the coupled signals is changed. The amplitude and the phase of output signals of the horizontal polarization feeder line and the vertical polarization feeder line are quickly and flexibly adjusted through the beamforming chip, so that the requirement of full polarization can be met, and the polarization mode can be switched at will. Meanwhile, compared with a polarization switching mode in the prior art, the polarization switching method has the advantages of less hardware equipment and lower cost.
With continued reference to fig. 1, possibly the coupling layer 20 is an H-shaped slot layer and the geometry of the radiation surface 10 is rectangular.
Optionally, as to how to adjust the amplitude and phase of the output signals of the first terminal and the second terminal, the embodiment of the present application further provides a possible implementation manner, please refer to fig. 2, and the phased array antenna further includes a processor 50. The processor 50 is connected to the beamforming chip 40.
The processor 50 is configured to generate corresponding signal adjustment instructions according to a desired polarization scenario, and transmit the signal adjustment instructions to the beamforming chip 40, so that the beamforming chip 40 adjusts the amplitude and the phase of the output signals of the first end and the second end according to the signal adjustment instructions.
The signal adjusting instruction comprises a first target phase, a first target amplitude, a second target phase and a second target amplitude, wherein the first target phase and the first target amplitude are respectively the phase and the amplitude corresponding to the output signal of the first end, and the second target phase and the second target amplitude are respectively the phase and the amplitude corresponding to the output signal of the second end.
Specifically, according to the requirements of different polarization scenarios, a first target phase, a first target amplitude, a second target phase, and a second target amplitude in the signal adjustment instruction are changed, so that the polarization mode of the coupled signal is switched to meet the requirements of the different polarization scenarios.
Alternatively, please refer to fig. 3, when the polarization scene is horizontally polarized. Processor 50 adjusts the signals generated corresponding to the horizontal polarization by: the second target phase is 0 °; the second target amplitude is 0, i.e., the vertically polarized feed line 202 is turned off.
With continued reference to fig. 3, optionally, when the polarization scene is vertical polarization, the processor 50 generates a signal adjustment instruction corresponding to the vertical polarization, where: the first target phase is 0 °; the first target amplitude is 0, i.e. the horizontally polarised feed line 201 is switched off.
With continued reference to fig. 3, optionally, when the polarization scene is left-handed circular polarization. The processor 50 adjusts the signals generated corresponding to left-hand circular polarization according to the following: the first target phase lags the second target phase by 90 °; the first target amplitude is equal to the second target amplitude.
That is, the phase of the output signal of the horizontally polarized feeder line 201 lags behind the phase of the output signal of the vertically polarized feeder line 202 by 90 °, and the amplitude of the output signal of the horizontally polarized feeder line 201 coincides with the amplitude of the output signal of the vertically polarized feeder line 202.
With continued reference to fig. 3, optionally, when the polarization scene is right-hand circular polarization; the processor 50 adjusts the signal conditioning commands generated corresponding to the right hand circular polarization by: the first target phase leads the second target phase by 90 °; the first target amplitude is equal to the second target amplitude.
That is, the phase of the output signal of the horizontally polarized feeder line 201 leads 90 ° with respect to the phase of the output signal of the vertically polarized feeder line 202, and the amplitude of the output signal of the horizontally polarized feeder line 201 coincides with the amplitude of the output signal of the vertically polarized feeder line 202.
Referring to fig. 4, optionally, when the polarization scene is cross-polarized, the included angle between the cross-polarization and the horizontal polarization is c.
When c >0 ° and c < 45 °;
a first target phase K; a second target phase K;
a first target amplitude ═ M; a second target amplitude M tan (c);
when c is more than or equal to 45 degrees and c is less than 90 degrees;
a first target phase K; a second target phase K;
a first target amplitude M tan (90-c); a second target amplitude ═ M;
when c >90 ° and c < 135 °;
a first target phase K +180 °; a second target phase K;
a first target amplitude M tan (c-90); a second target amplitude ═ M;
when c is more than or equal to 135 degrees and c is less than 180 degrees;
a first target phase K +180 °; a second target phase K;
a first target amplitude ═ M; a second target amplitude of M tan (180-c);
where K characterizes the reference phase (phase) and M characterizes the reference amplitude (amp).
Specifically, the first target amplitude, the first target phase, the second target amplitude and the second target phase are adjusted corresponding to different included angles between cross polarization and horizontal polarization, so that arbitrary polarization is realized.
Possibly, when c is 0 °, it is horizontal polarization; when c is 90 °, it is vertical polarization.
Optionally, the processor 50 is further configured to receive a polarization scenario instructing the terminal to transmit.
The command terminal may be a human-computer interaction device connected to the processor 50, or may be another terminal, such as a mobile phone, connected to the processor 50 in a communication manner.
Referring to fig. 5, the phased array antenna optionally further includes a feeder layer 30, where the feeder layer 30 includes at least two feeders, and the first end and the second end are connected to the horizontally polarized feeder 201 and the vertically polarized feeder 202 through different feeders, respectively.
In particular, a feed point is provided between the feed line layer 30 and the coupling layer 20, through which connection is made. The feed point may be a metal via.
The processor 50 in the embodiment of the present application may be an integrated circuit chip having signal processing capability. The Processor 50 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component.
It should be understood that the structure shown in fig. 1 is merely a structural schematic of a portion of a phased array antenna, which may also include more or fewer components than shown in fig. 1, or have a different configuration than shown in fig. 1. The components shown in fig. 1 may be implemented in hardware, software, or a combination thereof.
Referring to fig. 6, an antenna control method provided in the embodiment of the present application may be applied to, but is not limited to, a phased array antenna shown in fig. 1, and includes:
s40-1, the beamforming chip adjusts the amplitude and phase of the output signals of the first and second terminals.
And S20-1, the coupling layer couples the output signals of the horizontal polarization feeder line and the vertical polarization feeder line and radiates the coupled signals to the radiation surface.
S10-1, the radiation surface radiates the received signal.
On the basis of fig. 6, regarding how to adjust the amplitude and the phase of the output signals of the first terminal and the second terminal, the embodiment of the present application further provides a possible implementation manner, please refer to fig. 7, the antenna control method further includes:
and S50-1, the processor generates corresponding signal adjusting instructions according to the required polarization scene, and transmits the signal adjusting instructions to the beamforming chip, and the beamforming chip adjusts the amplitude and the phase of the output signals of the first end and the second end according to the signal adjusting instructions.
It should be noted that, the antenna control method provided in this embodiment can achieve the technical effects corresponding to the phased array antenna described above. For the sake of brevity, the corresponding contents in the above embodiments may be referred to where not mentioned in this embodiment.
The embodiment of the application also provides communication equipment which comprises the phased array antenna. Which can achieve the technical effects corresponding to the phased array antenna described above. For the sake of brevity, the corresponding contents in the above embodiments may be referred to where not mentioned in this embodiment.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A phased array antenna is characterized by comprising a beamforming chip, a coupling layer and a radiation surface, wherein a horizontal polarization feeder line and a vertical polarization feeder line are arranged in the coupling layer, and a first end and a second end of the beamforming chip are respectively connected with the horizontal polarization feeder line and the vertical polarization feeder line;
the coupling layer is used for coupling output signals of the horizontal polarization feeder line and the vertical polarization feeder line and radiating the coupled signals to the radiation surface;
the radiation surface is used for radiating the received signals;
the beam forming chip is used for adjusting the amplitude and the phase of the output signals of the first end and the second end so as to adjust the amplitude and the phase of the output signals of the horizontal polarization feeder line and the vertical polarization feeder line, and therefore the polarization of the coupled signals is changed.
2. The phased array antenna of claim 1, further comprising a processor coupled to the beamforming chip,
the processor is configured to generate a corresponding signal adjustment instruction according to a polarization scene of a demand, and transmit the signal adjustment instruction to the beamforming chip, so that the beamforming chip adjusts the amplitude and the phase of the output signals of the first end and the second end according to the signal adjustment instruction;
the signal adjusting instruction comprises a first target phase, a first target amplitude, a second target phase and a second target amplitude, wherein the first target phase and the first target amplitude are respectively a phase and an amplitude corresponding to the output signal of the first end, and the second target phase and the second target amplitude are respectively a phase and an amplitude corresponding to the output signal of the second end.
3. The phased array antenna of claim 2, wherein when the polarization scenario is horizontally polarized;
the second target phase is 0 °; the second target amplitude is 0.
4. The phased array antenna of claim 2, wherein when the polarization scenario is vertical polarization;
the first target phase is 0 °; the first target amplitude is 0.
5. The phased array antenna of claim 2, wherein when the polarization scene is left-hand circular polarization;
the first target phase lags the second target phase by 90 °; the first target amplitude is equal to the second target amplitude.
6. The phased array antenna of claim 2, wherein when the polarized scene is right-hand circular polarized;
the first target phase leads the second target phase by 90 °; the first target amplitude is equal to the second target amplitude.
7. The phased array antenna of claim 2, wherein when the polarization scenario is cross-polarized, the cross-polarization makes an angle c with the horizontal polarization;
when c >0 ° and c < 45 °;
a first target phase K; a second target phase K;
a first target amplitude ═ M; a second target amplitude M tan (c);
when c is more than or equal to 45 degrees and c is less than 90 degrees;
a first target phase K; a second target phase K;
a first target amplitude M tan (90-c); a second target amplitude ═ M;
when c >90 ° and c < 135 °;
a first target phase K +180 °; a second target phase K;
a first target amplitude M tan (c-90); a second target amplitude ═ M;
when c is more than or equal to 135 degrees and c is less than 180 degrees;
a first target phase K +180 °; a second target phase K;
a first target amplitude ═ M; a second target amplitude of M tan (180-c);
where K represents the reference phase and M represents the reference amplitude.
8. The phased array antenna of claim 1, further comprising a feed line layer including at least two feed lines therein, the first end and the second end being connected to the horizontally polarized feed line and the vertically polarized feed line by different feed lines, respectively.
9. A communication device, characterized in that the communication device comprises a phased array antenna according to any of claims 1-8.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112994808A (en) * | 2021-05-20 | 2021-06-18 | 成都天锐星通科技有限公司 | Radio frequency signal internal calibration system and phased array antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112994808A (en) * | 2021-05-20 | 2021-06-18 | 成都天锐星通科技有限公司 | Radio frequency signal internal calibration system and phased array antenna |
| CN112994808B (en) * | 2021-05-20 | 2021-07-27 | 成都天锐星通科技有限公司 | Radio frequency signal internal calibration system and phased array antenna |
| WO2022242492A1 (en) * | 2021-05-20 | 2022-11-24 | 成都天锐星通科技有限公司 | Radio frequency signal internal calibration system and phased array antenna |
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