CN213753068U - Array antenna system - Google Patents
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- CN213753068U CN213753068U CN202022309218.9U CN202022309218U CN213753068U CN 213753068 U CN213753068 U CN 213753068U CN 202022309218 U CN202022309218 U CN 202022309218U CN 213753068 U CN213753068 U CN 213753068U
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Abstract
The present application provides an array antenna system comprising: an array antenna and a beam control network; the array antenna is an array antenna of a multi-face surrounding structure formed by a plurality of directional unit antennas; the multi-surface is not less than 4 surfaces; the beam control network comprises a plurality of switching devices; at any time in the working process of the array antenna system, the plurality of switching devices control the directional unit antenna and the combiner on any one surface in the array antenna to transmit signals, or control the directional unit antennas and the combiner on any plurality of and not all surfaces adjacent in sequence to transmit signals; wherein, a switching device controls a preset number of directional unit antennas in the array antenna; the plurality of switch devices correspond to the plurality of signal transmission interfaces of the combiner one by one. The method and the device improve the signal transmission distance and the signal transmission quality of the system under the condition of ensuring that the directional beam formed by the array antenna can cover the whole horizontal plane.
Description
Technical Field
The present application relates to the field of antennas, and more particularly, to an array antenna system.
Background
The traditional vehicle radio antenna mainly uses a sucker steel wire antenna or a glass fiber reinforced plastic antenna, the typical wave beam of the traditional vehicle radio antenna is similar to a dipole wave beam, and a coaxial array mode is usually adopted for realizing high gain performance, so that the antenna is heavier in volume or longer in length.
The traditional vehicle-mounted radio station antenna can achieve beam non-blind-area coverage in a horizontal plane.
However, the problems of insufficient gain and poor anti-interference performance exist, and especially the signal transmission distance and the signal transmission quality of the whole system are greatly limited under a complex electromagnetic environment.
SUMMERY OF THE UTILITY MODEL
The application provides an array antenna system, which aims to improve the signal transmission distance and the signal transmission quality under the condition of ensuring that a beam in a horizontal plane does not have blind area coverage.
In order to achieve the above object, the present application provides the following technical solutions:
the present application provides an array antenna system comprising: an array antenna and a beam control network;
the array antenna is an array antenna of a multi-face surrounding structure formed by a plurality of directional unit antennas; the multiple surfaces are not less than 4 surfaces;
the beam control network comprises a plurality of switching devices; the plurality of switch devices control the directional unit antenna on any one surface of the array antenna and the combiner to transmit signals at any time in the working process of the array antenna system, or control the directional unit antennas on any plurality of and not all surfaces adjacent in sequence and the combiner to transmit signals;
wherein one of the switching devices controls a preset number of directional element antennas in the array antenna; the plurality of switch devices correspond to the plurality of signal transmission interfaces of the combiner one to one.
Optionally, the horizontal 3dB lobe width of the beam formed by any one of the directional unit antennas in the horizontal plane is not less than 90 degrees.
Optionally, the directional unit antennas at the same relative position on each side of the array antenna are located at the same horizontal plane.
Optionally, one of the switch devices controls any one of the directional unit antennas on one horizontal plane or any plurality of directional unit antennas adjacent in sequence to operate.
Optionally, the beam control network further includes: a plurality of amplitude and phase control modules and a plurality of T/R components; the amplitude and phase control module, the T/R component, the switch device and the signal transmission interface of the combiner are in one-to-one correspondence; one end of the amplitude and phase control module is connected with a corresponding interface of the combiner; the other end of the amplitude and phase control module is connected with one end of the corresponding T/R component; the other end of the T/R component is connected with a corresponding switch device;
the amplitude and phase control module is used for adjusting the amplitude and phase of the received signal and the transmitted signal;
the T/R component is used for switching transmitting and receiving signals and amplifying power of the receiving signals and the transmitting signals;
and the T/R assembly and the corresponding switch device are in signal transmission.
Optionally, the beam control network further includes: a plurality of band pass filters; wherein the plurality of bandpass filters are in one-to-one correspondence with the plurality of T/R components and the plurality of switching devices; one end of the T/R component is connected with a corresponding amplitude-phase control module; the other end of the T/R component is connected with one end of a corresponding band-pass filter; the other end of the band-pass filter is connected with a corresponding switch device;
the band-pass filter is used for suppressing interference signals except for the preset frequency band in the received signals and the transmitted signals.
Optionally, the beam steering network is located within a multi-faceted surrounding structure of the array antenna.
Optionally, the directional unit antenna is a printed folded dipole with a U-shaped metal reflector.
Optionally, the array antenna is an array antenna of a four-side surrounding structure formed by a plurality of directional unit antennas.
Optionally, the switch device controls the directional unit antenna on any one surface or any two adjacent surfaces of the array antenna to work at any time in the working process of the array antenna system.
The array antenna system comprises an array antenna and a beam control network, wherein the array antenna is an array antenna of a multi-face surrounding structure formed by a plurality of directional unit antennas; wherein, the multi-surface is not less than 4 surfaces, the wave beam control network comprises a plurality of switch devices; the plurality of switching devices control signal transmission between the directional unit antenna and the combiner on any one surface of the array antenna, or control signal transmission between the directional unit antenna and the combiner on any plurality of and not all surfaces adjacent in sequence. Wherein, a switching device controls a preset number of directional unit antennas in the array antenna; the plurality of switch devices correspond to the plurality of signal transmission interfaces of the combiner one by one.
In this application, the plurality of switching devices control the operation of the directional unit antenna on any one surface of the array antenna, or control the operation of the directional unit antennas on any plurality of and not all surfaces adjacent in sequence, so that at any time during the operation of the array antenna system, the directional unit antennas on one surface of the array antenna or any plurality and not all surfaces adjacent in sequence operate. Due to the array antenna, the directional unit antenna on any one surface in an operating state or the directional unit antennas on any plurality of and not all surfaces adjacent in sequence can form a directional beam on a horizontal plane.
On one hand, in the present application, only one directional unit antenna on one surface works at any time in the working process of the array antenna, or only any plurality of directional unit antennas adjacent in sequence and not all the directional unit antennas on the other surfaces work, so that on one hand, the energy of the formed directional beam can be ensured to be larger, and thus, the transmission distance of signals can be increased; on the other hand, signals in other directions are not received, so that signal interference in other directions can be avoided, and the transmission quality of signals can be improved.
On the other hand, in the present application, since the array antenna is of a surrounding structure, directions of directional beams formed by the directional unit antennas on any one surface or a plurality of sequentially adjacent and not all surfaces controlled by the switching device in an operating state at different times may be different, and the directional beams formed on a horizontal plane at different times of the operation of the array antenna of the present application may cover the entire horizontal plane.
In summary, the present application improves the signal transmission distance and the signal transmission quality of the system under the condition that the directional beam that the array antenna can form can cover the whole horizontal plane.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an array antenna system disclosed in an embodiment of the present application;
fig. 2 is a schematic structural diagram of another array antenna system disclosed in the embodiment of the present application;
fig. 3 is a schematic structural diagram of another array antenna system disclosed in the embodiment of the present application;
fig. 4 is a schematic structural diagram of another array antenna system disclosed in the embodiment of the present application;
fig. 5 is a schematic diagram illustrating a distribution of the positions of directional element antennas in the array antenna disclosed in the embodiment of the present application;
fig. 6 is a schematic view of distribution of azimuth plane areas covered by directional beams that can be formed when 8 one-out-of-four or two-out-of-four switch chips disclosed in this embodiment of the application control any one of the array planes to work, or control any two adjacent array planes to work simultaneously;
fig. 7 is a schematic view of beam scanning of a pitching surface when only the directional unit antenna on one wavefront is in operation at a time in the array antenna disclosed in the embodiment of the present application;
fig. 8 is a schematic view of beam scanning of a pitching plane when the directional unit antennas on two adjacent wave fronts operate at a time in the array antenna disclosed in the embodiment of the present application.
Detailed Description
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 only a part of the embodiments of the present application, and not all of the embodiments. 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.
Fig. 1 is an array antenna system provided in an embodiment of the present application, including: array antennas and beam steering networks.
The array antenna is an array antenna with a multi-face surrounding structure formed by a plurality of directional unit antennas. In this embodiment, the multi-plane surrounding structure is not less than 4 surrounding structures, the beam control network includes a plurality of switch devices and a plurality of T/R assemblies, wherein the signal transmission interfaces of the switch devices, the T/R assemblies and the combiner are in one-to-one correspondence, that is, in this embodiment, the switch devices in the beam control network are connected to one end of the corresponding T/R assemblies, and the other ends of the T/R assemblies are connected to the corresponding interfaces of the combiner. In this embodiment, one switching device controls a predetermined number of directional unit antennas in the array antenna, that is, for any switching device, when the switching state of the switching device indicates on, the predetermined number of directional unit antennas controlled by the switching device communicate with a corresponding interface of the combiner, where the corresponding interface of the combiner is an interface of the combiner corresponding to the switching device.
The switch device may be a switch chip or a switch circuit, and the embodiment does not limit the specific implementation manner of the switch device.
Wherein the T/R module is used for switching the transceiving signal and performing power amplification on the transceiving signal (the transceiving signal and the transmission signal, hereinafter referred to as the transceiving signal for convenience of description). The T/R components may include a low noise amplifier, a power amplifier, a transmit/receive switch, and the like. The specific implementation principle of the T/R component is the prior art, and is not described herein again. The combiner is used for realizing power distribution when transmitting signals or power synthesis when receiving signals.
Wherein the directional element antennas on each side of the array antenna are distributed in the form of an array. In practice, the number of directional unit antennas on each surface can be determined according to practical situations, and the embodiment is not limited.
In practice, the directional unit antenna on each side may be a printed folded dipole with a U-shaped metal reflector, or may also be a high-gain wide-lobe directional antenna unit with a reflective floor.
In this embodiment, the plurality of switching devices control the operation of the directional unit antenna on any one surface of the array antenna, or control the operation of the directional unit antennas on any plurality of and not all surfaces adjacent in sequence at any time during the operation of the array antenna system. That is, at any time during the operation of the array antenna system, the array antenna is controlled by the plurality of switching devices, and only the directional unit antennas on one surface or a plurality of sequentially adjacent and non-all surfaces operate, wherein one surface may be any one surface in the array antenna, and the plurality of sequentially adjacent and non-all surfaces may be any plurality of sequentially adjacent and non-all surfaces in the array antenna.
In the working process of the array antenna system, the plurality of switching devices control a determination process of which surface in the array antenna is in the working state in the array antenna, or which surfaces in the array antenna system are in the working state and a plurality of and not all surfaces adjacent to each other in sequence are in the working state, which is the prior art and is not described herein again.
In this embodiment, on one hand, only one directional unit antenna on one surface works at any time in the working process of the array antenna, or only any plurality of directional unit antennas which are adjacent in sequence and are not on all surfaces work, and the other directional unit antennas do not work, so that on the one hand, the energy of the formed directional beam can be ensured to be larger, and therefore, the energy is obviously focused in the communication direction, and the communication distance is increased; on the other hand, interference signals outside the communication direction can be obviously inhibited, namely, the anti-interference performance of the whole system under a complex electromagnetic environment can be ensured, and therefore, the transmission quality of the signals can be improved.
On the other hand, because the array antenna is of a surrounding structure, the directions of directional beams formed by the directional unit antennas on any one surface or a plurality of sequentially adjacent and not all surfaces which are controlled by the switching device in an operating state at different times can be different, and the directional beams can surround the whole horizontal plane, so that the directional beams formed on the horizontal plane at different times of the operation of the array antenna can cover the whole horizontal plane.
In summary, the present embodiment can improve the signal transmission distance and the signal transmission quality of the system under the condition that the directional beam that can be formed by the array antenna can cover the whole horizontal plane.
In this embodiment, in the operation process of the array antenna system, under the control of the plurality of switching devices, the directional unit antenna in the operation state in the array antenna forms a directional beam on a horizontal plane. At different times, the directional beams formed by the directional unit antenna in the working state on the horizontal plane may be different, and the coverage areas of the different directional beams on the horizontal plane are different. In this embodiment, in order to ensure that there is an overlap between adjacent coverage areas, and the fluctuation amplitude of the gain at the overlap and the maximum gain is not greater than 3dB, in this embodiment, it is required to ensure that when the plurality of switching devices control the operation of the directional unit antenna on any one plane or any plurality of planes adjacent in sequence, the 3dB lobe width of the horizontal plane of the beam formed by any single directional unit antenna on the horizontal plane is not less than 90 degrees.
Optionally, in this embodiment, the directional unit antennas on each side of the array antenna are distributed in an array, where the directional unit antennas at the same relative position on each side are located on the same horizontal plane.
Optionally, in this embodiment, a switch device in the beam steering network controls any one of the directional unit antennas on a horizontal plane or any plurality of directional unit antennas adjacent in sequence to operate.
Fig. 2 is a schematic diagram of another array antenna system according to an embodiment of the present application, including an array antenna and a beam steering network.
The beam control network comprises a plurality of switch devices, a plurality of T/R components and a plurality of amplitude and phase control modules. Wherein, a switch device controls the directional unit antenna on a horizontal plane in the array antenna to work. And the switching device, the T/R assembly, the amplitude and phase control module and the signal transmission interface of the combiner are in one-to-one correspondence. One end of the amplitude and phase control module is connected with the corresponding interface of the combiner, the other end of the amplitude and phase control module is connected with one end of the corresponding T/R component, and the other end of the T/R component is connected with the corresponding switch device.
Wherein, the amplitude and phase control module is used for adjusting the amplitude and the phase of the transmitting and receiving signals. The specific implementation principle of the amplitude and phase control module for adjusting the amplitude and phase of the received and transmitted signal is the prior art, and is not described herein again. In this embodiment, the amplitude and phase control module adjusts the amplitude and phase of the received and transmitted signal, so as to realize beam scanning of the pitching surface and further realize beam coverage of the vertical surface.
In the embodiment, the amplitude and phase control module is also in signal transmission with the corresponding T/R component.
And the T/R assembly is also in signal transmission with the corresponding switch device.
In practice, the directional unit antenna, which is in operation under the control of the switching device, performs signal transmission with the corresponding switching device. The directional unit antenna in the non-working state under the control of the switch device does not transmit signals with the corresponding switch device.
Optionally, in this embodiment, the beam steering network may further include a plurality of band pass filters, as shown in fig. 3, where the plurality of band pass filters are in one-to-one correspondence with the plurality of T/R components and the plurality of switch devices. Specifically, one end of the amplitude and phase control module is connected with a corresponding interface of the combiner, the other end of the amplitude and phase control module is connected with one end of the T/R assembly, the other end of the T/R assembly is connected with one end of a corresponding band-pass filter, and the other end of the band-pass filter is connected with a corresponding switch device.
In this embodiment, the band pass filters respectively perform signal transmission with the corresponding T/R components and the corresponding switching devices. The band-pass filter is used for suppressing interference signals except for a preset frequency band in the transmitting and receiving signals. The specific implementation principle of the band-pass filter is the prior art, and is not described herein again.
Optionally, in this embodiment, the beam control network may be located in a multi-plane surrounding structure of the array antenna, so as to implement integrated integration of the array antenna and the beam controller.
It should be noted that, in this embodiment, the band pass filter is placed in front of the T/R component, which is only a specific implementation manner, in practice, the band pass filter may be placed in front of the T/R component, may also be placed behind the T/R component, and may also be placed inside the T/R component, and this embodiment does not limit the specific position of the band pass filter.
The embodiment has the following beneficial effects:
the beneficial effects are that:
the array antenna adopts a multi-surface surrounding structure, and the non-blind area coverage of the horizontal plane is realized by overlapping a plurality of high-gain wide beams which are distributed in a surrounding manner.
The beneficial effects are that:
the wave beam control network can comprise an amplitude and phase control module, and the amplitude and phase of the input signals are adjusted, so that the phase control scanning of the pitching surface is realized, and the vertical plane wave beam coverage can be considered simultaneously through the amplitude and phase adjustment.
The beneficial effects are three:
the array antenna and the beam control network are integrally designed, the beam control network is completely arranged in the multi-surface surrounding structure, so that the integrated design of the array antenna and the beam control network is realized, the loss of radio frequency connection of different functional modules can be reduced, the working efficiency of an antenna system is effectively improved, and the antenna system is more compact and firmer in structure.
The beneficial effects are four:
in the embodiment, the beam control network has a simple structure, i.e. a complex beam forming network is not needed, so that the cost and the control complexity can be reduced.
Fig. 4 is a schematic diagram of another array antenna system according to an embodiment of the present application, which is introduced by taking a four-sided surrounding structure as an array antenna, each side of which is a uniform linear array formed by 8 directional unit antennas, and a switching device is a switching chip.
Specifically, the position distribution of the directional unit antennas in the array antenna is shown in fig. 5, and the gray areas in fig. 5 indicate the directional unit antennas. The directional unit antennas at the same relative position on each surface of the array antenna are on the same horizontal plane. In fig. 5, the directional unit antennas on the array antenna have numbers, where the number of any one directional unit antenna is m-N, where (m ═ 1,2,3, 4; N ═ 1,2, · · N) denotes the nth directional unit antenna on the mth plane.
The directional antenna unit may be a printed folded dipole with a U-shaped metal reflection plate, or a high-gain wide-lobe antenna unit with a reflection floor, or indeed, may also be an antenna unit in other forms, which is not limited in this embodiment. In this embodiment, the size of the array antenna may be 5.6 λ 0 × 0.8 λ 0(λ 0 is a free space wavelength).
In this embodiment, the beam control network is completely arranged in the four-side structure surrounded by the U-shaped metal reflecting plates, so that the integrated design of the array antenna and the beam control network is realized, the loss of radio frequency connection of different functional modules can be reduced, the working efficiency of the antenna system is effectively improved, and the structure is more compact and firmer.
In this embodiment, in order to reduce the cost of the array antenna system, a set of beam control networks is multiplexed on different array planes of the array antenna, that is, the directional unit antennas on the same horizontal plane in the array antenna determine the directional unit antennas in the access beam control network on the same horizontal plane through the one-out-of-four or two-out-of-four working mode of the corresponding switch chip and the on-off of the switch chip in the working mode. The directional unit antennas accessed to the beam control network share the corresponding band-pass filter, the T/R component and the amplitude-phase control module. The functions of the band-pass filter, the T/R assembly, and the amplitude and phase control module are the same as those of the above embodiments, and are not described herein.
For example, the switch chip 1 in fig. 4 is only responsible for switching on and off the directional unit antenna 1_1, the directional unit antenna 2_1, the directional unit antenna 3_1 and the directional unit antenna 4_1, while the switch chip 2 is only responsible for switching on and off the directional unit antenna 1_2, the directional unit antenna 2_2, the directional unit antenna 3_2 and the directional unit antenna 4_2, and so on. When all the switch chips work in a four-to-one mode, only one side of the directional unit antenna of the array antenna works, namely, only one side of the directional unit antenna is accessed into the beam control network. When all the switch chips work in the two-out-of-four mode, the directional unit antennas on the two adjacent sides of the array antenna work simultaneously, namely the directional unit antennas on the two adjacent sides of the array antenna are simultaneously accessed into the beam control network.
In this embodiment, when the array antenna has only one or two adjacent directional unit antennas operating simultaneously, the areas corresponding to the coverage level of the formed beam are summarized in table 1. In this embodiment, each directional element antenna requires a horizontal 3dB lobe width of not less than 90 ° for good beam overlap in the horizontal plane, and in practice, the horizontal 3dB lobe width may be 100 °.
TABLE 1
| Array antenna surface working condition | Horizontal plane area beam coverage |
| Array face 1 operation | -22.5°～22.5° |
| Array plane 2 operation | 67.5°～112.5° |
| |
157.5°～202.5°(-157.5°) |
| Operation of array plane 4 | -112.5°～-67.5° |
| Array planes 1,2 working simultaneously | 22.5°～67.5° |
| |
112.5°～157.5° |
| The array planes 3,4 are working simultaneously | -157.5°～-112.5° |
| Array planes 1, 4 working simultaneously | -67.5°～-22.5° |
According to the embodiment, through a hybrid working mechanism of beam switching and phase control scanning, the structure surrounded by four sides of the array antenna and the integrated design of the antenna and the beam control network are compact in structure, multiple beam pointing can be flexibly achieved only through multiplexing of the simple beam control network, and the achieving cost and the control complexity are also low.
It should be noted that, in this embodiment, the band pass filter is placed in front of the T/R component, which is only a specific implementation manner, in practice, the band pass filter may be placed in front of the T/R component, may also be placed behind the T/R component, and may also be placed inside the T/R component, and this embodiment does not limit the specific position of the band pass filter.
In order to visually show the test result of this embodiment, fig. 6 is a distribution diagram of an azimuth plane area covered by a directional beam that can be formed when 8 one-out-of-four or two-out-of-four switch chips control any one of the wavefront to work, or control any two adjacent wavefronts to work simultaneously. Where the ordinate "Gain" represents Gain in dB. The beams #1, #3, #5, #7 are radiation beams formed when only one wavefront is working and different ones of the surfaces are working, respectively, and the beams #2, #4, #6, #8 are radiation beams formed when two adjacent wavefronts are working simultaneously and different two adjacent surfaces are working simultaneously. From fig. 6, it can be seen that the adjacent parts of the coverage areas of 8 beams are overlapped with each other, and the maximum gain fluctuation of the gain at the overlapped part is less than 1.5dB as measured by tests, so that good beam overlapping (better than the 3dB beam overlapping required under the general condition) is realized, and high-gain omnidirectional coverage of the azimuth plane can be ensured, that is, the coverage without blind area in the horizontal range of 0-360 degrees is realized.
Fig. 7 is a schematic diagram of beam scanning of a pitching surface when the directional unit antenna on the next wavefront in the array antenna is in operation at a moment. Wherein the abscissa "Theta" represents angle, the unit "degree" represents degree, the ordinate "Gain" represents Gain, the unit is dB, and the "Scanning angle" represents Scanning angle. Fig. 8 is a schematic view of beam scanning of a pitching surface when the directional unit antennas on two adjacent array surfaces are in operation at one moment in time in the array antenna. Wherein the abscissa "Theta" represents angle, the unit "degree" represents degree, the ordinate "Gain" represents Gain, the unit is dB, and the "Scanning angle" represents Scanning angle.
In fig. 7 and 8, the abscissa represents the pitch plane θ angle, and the ordinate represents the array antenna gain. The gain variation of the array antenna is within 1dB from-30 degrees to 30 degrees when the wave beam is scanned. As can be seen from fig. 7 and 8, during the scanning process, as the effective radiation aperture of the array antenna is reduced, the radiation gain can still maintain good stability.
The emphasis of each embodiment in this specification is on the difference from the other embodiments, and the same or similar parts between the respective embodiments may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An array antenna system, comprising: an array antenna and a beam control network;
the array antenna is an array antenna of a multi-face surrounding structure formed by a plurality of directional unit antennas; the multiple surfaces are not less than 4 surfaces;
the beam control network comprises a plurality of switching devices; the plurality of switch devices control the directional unit antenna on any one surface of the array antenna and the combiner to transmit signals at any time in the working process of the array antenna system, or control the directional unit antennas on any plurality of and not all surfaces adjacent in sequence and the combiner to transmit signals;
wherein one of the switching devices controls a preset number of directional element antennas in the array antenna; the plurality of switch devices correspond to the plurality of signal transmission interfaces of the combiner one to one.
2. The array antenna system of claim 1, wherein the horizontal 3dB lobe width of any one of the directional element antennas forming a beam in the horizontal plane is not less than 90 degrees.
3. The array antenna system of claim 1, wherein the directional unit antennas at the same relative position on each side of the array antenna are located at the same horizontal plane.
4. The array antenna system of claim 3, wherein one of the switch devices controls the operation of any one of the directional unit antennas in a horizontal plane or any plurality of directional unit antennas adjacent in sequence.
5. The array antenna system of claim 3, wherein the beam steering network further comprises: a plurality of amplitude and phase control modules and a plurality of T/R components; the amplitude and phase control module, the T/R component, the switch device and the signal transmission interface of the combiner are in one-to-one correspondence; one end of the amplitude and phase control module is connected with a corresponding interface of the combiner; the other end of the amplitude and phase control module is connected with one end of the corresponding T/R component; the other end of the T/R component is connected with a corresponding switch device;
the amplitude and phase control module is used for adjusting the amplitude and phase of the received signal and the transmitted signal;
the T/R component is used for switching transmitting and receiving signals and amplifying power of the receiving signals and the transmitting signals;
and the T/R assembly and the corresponding switch device are in signal transmission.
6. The array antenna system of claim 5, wherein the beam steering network further comprises: a plurality of band pass filters; wherein the plurality of bandpass filters are in one-to-one correspondence with the plurality of T/R components and the plurality of switching devices; one end of the T/R component is connected with a corresponding amplitude-phase control module; the other end of the T/R component is connected with one end of a corresponding band-pass filter; the other end of the band-pass filter is connected with a corresponding switch device;
the band-pass filter is used for suppressing interference signals except for the preset frequency band in the received signals and the transmitted signals.
7. The array antenna system of claim 1, wherein the beam steering network is located within a multi-faceted surrounding structure of the array antenna.
8. The array antenna system of claim 1, wherein the directional element antenna is a printed folded dipole with a U-shaped metal reflector plate.
9. The array antenna system of claim 1, wherein the array antenna is a four-sided surround array antenna formed of a plurality of directional element antennas.
10. The array antenna system of claim 9, wherein the switch device controls the operation of the directional unit antenna on any one surface or any two adjacent surfaces of the array antenna at any time during the operation of the array antenna system.
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|---|---|---|---|
| CN202022309218.9U CN213753068U (en) | 2020-10-16 | 2020-10-16 | Array antenna system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022309218.9U CN213753068U (en) | 2020-10-16 | 2020-10-16 | Array antenna system |
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|---|---|
| CN213753068U true CN213753068U (en) | 2021-07-20 |
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| CN202022309218.9U Active CN213753068U (en) | 2020-10-16 | 2020-10-16 | Array antenna system |
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