CN111525263A - Full-airspace multilayer three-dimensional phased array antenna - Google Patents
Full-airspace multilayer three-dimensional phased array antenna Download PDFInfo
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- CN111525263A CN111525263A CN202010355079.5A CN202010355079A CN111525263A CN 111525263 A CN111525263 A CN 111525263A CN 202010355079 A CN202010355079 A CN 202010355079A CN 111525263 A CN111525263 A CN 111525263A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
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Abstract
The invention discloses a full-airspace multilayer three-dimensional phased array antenna which comprises a base and a polyhedral phased array antenna arranged on the base, wherein the polyhedral phased array antenna comprises a multilayer phased array, each layer of phased array comprises a plurality of phased array sub-arrays, and each phased array sub-array is used for generating T wave beam radio frequency signals, wherein T is a positive integer and is more than or equal to 1. According to the invention, a plurality of wave beam radio frequency signals are generated by a phased array subarray in the polyhedral phased array antenna through a simulation technology, so that the multi-wave-beam polyhedral phased array antenna is formed, and further, the tracking of communication satellites in different orbits of a full airspace and the establishment of radio frequency links can be realized. The invention can be widely applied to the communication field.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a full-airspace multilayer three-dimensional phased array antenna.
Background
The existing satellite communication ground gateway station feed network antenna mostly adopts parabolic antennas, and one parabolic antenna tracks one satellite. In the fields of measurement and control and radar, a multi-beam phased antenna is adopted to measure and control a satellite or detect a target, a digital technology is adopted in a multi-beam technology, a digital channel is in direct proportion to the number of array elements, and digital devices matched with the digital channel in a millimeter wave band are expensive and have huge power consumption.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a full-airspace multi-layer three-dimensional phased array antenna.
The technical scheme adopted by the invention is as follows:
the embodiment of the invention provides a full-airspace multilayer three-dimensional phased array antenna which comprises a base and a polyhedral phased array antenna arranged on the base, wherein the polyhedral phased array antenna comprises a multilayer phased array, each layer of phased array comprises a plurality of phased array sub-arrays, and each phased array sub-array is used for generating T wave beam radio frequency signals, wherein T is a positive integer and is more than or equal to 1.
According to some embodiments of the invention, the polyhedral phased array antenna comprises a plurality of layers of phased array arrays, each layer of the phased array being formed by splicing a plurality of phased array sub-arrays.
According to some embodiments of the invention, the phased array sub-array is a polygonal sub-array.
According to some embodiments of the invention, the phased array sub-array is a phased array transmit receive sub-array.
According to some embodiments of the invention, the phased array sub-array comprises a phased array transmit sub-array and a phased array receive sub-array.
According to some embodiments of the present invention, the phased array sub-array includes a plurality of communication units, each of the communication units includes a PCB, one surface of the PCB is provided with an antenna, the other surface of the PCB is provided with a TR chip, a via hole is formed in the PCB, and the antenna and the TR chip are connected by routing in the PCB through the via hole.
According to some embodiments of the present invention, the radio frequency signal switching device further comprises a radio frequency signal switching module and an external radio frequency interface, wherein an input end of the radio frequency signal switching module is connected to the beam radio frequency signal, and an output end of the radio frequency signal switching module is connected to the external radio frequency interface.
According to some embodiments of the present invention, the rf signal switching module includes an rf switch matrix and a matrix controller, an input end of the rf switch matrix is connected to the beam rf signal, an output end of the rf switch matrix is connected to the external rf interface, and an output end of the matrix controller is connected to a control end of the rf switch matrix.
According to some embodiments of the invention, the radio frequency switch matrix comprises a plurality of switches.
According to some embodiments of the invention, the rf switch matrix is a matrix in dimensions NT x MT;
wherein M represents the number of the external radio frequency interfaces, N represents the number of the phased array sub-arrays, NT represents the product of N and T, and MT represents the product of M and T.
The invention has the beneficial effects that:
the full-airspace multilayer three-dimensional phased array antenna generates a plurality of beam radio-frequency signals through a phased array subarray in the polyhedral phased array antenna through a simulation technology, so that the multi-beam polyhedral phased array antenna is formed, and further, the tracking of communication satellites in different orbits of a full-airspace and the establishment of radio-frequency links can be realized.
Drawings
Fig. 1 is a schematic structural diagram of a full-airspace multilayer three-dimensional phased array antenna according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a full-airspace multi-layer three-dimensional phased array antenna according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a full-airspace multilayer three-dimensional phased array antenna according to a third embodiment of the invention;
fig. 4 is a schematic structural diagram of a full-airspace multilayer three-dimensional phased array antenna according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a radio frequency signal exchange module in a full-airspace multilayer three-dimensional phased array antenna according to the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention
Referring to fig. 1, a first embodiment of the present invention provides a full-airspace multilayer three-dimensional phased array antenna, including a base 1 and a polyhedral phased array antenna 2 mounted on the base 1, where the polyhedral phased array antenna 2 includes a multilayer phased array, each layer of the phased array includes a plurality of phased array sub-arrays 3, and each phased array sub-array 3 is configured to generate T beam radio frequency signals, where T is a positive integer and T is greater than or equal to 1.
In this embodiment, the main body of the polyhedral phased array antenna 2 is in a polyhedral structure, each side surface of the polyhedral structure is a phased array sub-array 3, and each phased array sub-array 3 can generate T beam radio frequency signals by adopting an analog technology, where T is a positive integer and T is greater than or equal to 1. If N phased array sub-arrays 3 are arranged, the whole polyhedral phased array antenna 2 can generate N × T wave beams, and therefore communication satellite tracking and radio frequency link establishment of different orbits in a full airspace is formed.
Referring to fig. 1 to 4, in the present embodiment, the polyhedral phased array antenna 2 includes a multi-layer phased array, and each layer of phased array is formed by splicing a plurality of phased array sub-arrays 3. In this embodiment, the phased array sub-array 3 may be composed of a phased array transmit-receive sub-array, or a phased array transmit sub-array and a phased array receive sub-array.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention, in this embodiment, a polyhedral phased array antenna 2 is a dual-layer polyhedral phased array that is independent in transceiving, the polyhedral phased array antenna 2 includes two layers of phased array arrays, each layer of phased array sub-array 3 is a phased array transceiving sub-array, and can implement a signal transmitting and receiving function by itself, and in this embodiment, the phased array transceiving sub-arrays may be formed by communication units that can implement signal transmitting and receiving simultaneously, or coplanar communication units that can implement signal transmitting and receiving respectively. The communication unit comprises a PCB, an antenna is arranged on one side of the PCB, a TR chip is arranged on the other side of the PCB, a via hole is formed in the PCB, and the antenna and the TR chip are connected through the via hole in a wired mode in the PCB.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention, in this embodiment, a polyhedral phased array antenna 2 is a three-layer polyhedral phased array with independent transceiving, the polyhedral phased array antenna 2 includes a three-layer phased array, each of the phased array sub-arrays 3 of each layer is a phased array transceiving sub-array, and can implement a signal transmitting and receiving function by itself, and the phased array transceiving sub-arrays in this embodiment may be formed by communication units that can implement signal transmitting and receiving simultaneously, or by coplanar communication units that can implement signal transmitting and receiving respectively. The communication unit comprises a PCB, an antenna is arranged on one side of the PCB, a TR chip is arranged on the other side of the PCB, a via hole is formed in the PCB, and the antenna and the TR chip are connected through the via hole in a wired mode in the PCB.
Fig. 3 is a schematic structural diagram of a third embodiment of the present invention, in this embodiment, the polyhedral phased array antenna 2 is a dual-layer polyhedral phased array with the same transmit-receive array, the polyhedral phased array antenna 2 includes two layers of phased array arrays, and each layer of phased array sub-array 3 is a phased array transmit-receive sub-array, which can realize a signal transmit-receive function by itself. The phased array transceiver sub-array can be formed by communication units which can simultaneously realize signal transmission and reception, or can be formed by coplanar communication units which can respectively realize signal transmission and reception. The communication unit comprises a PCB, an antenna is arranged on one side of the PCB, a TR chip is arranged on the other side of the PCB, a via hole is formed in the PCB, and the antenna and the TR chip are connected through the via hole in a wired mode in the PCB.
Fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention, in this embodiment, the polyhedral phased array antenna 2 is a three-layer polyhedral phased array of the same transmit-receive array, the polyhedral phased array antenna 2 includes three-layer phased array arrays, and the phased array sub-arrays 3 of each layer are phased array transmit-receive sub-arrays, which can realize a signal transmitting and receiving function by themselves. The phased array transceiver sub-array can be formed by communication units which can simultaneously realize signal transmission and reception, or can be formed by coplanar communication units which can respectively realize signal transmission and reception. The communication unit comprises a PCB, an antenna is arranged on one side of the PCB, a TR chip is arranged on the other side of the PCB, a via hole is formed in the PCB, and the antenna and the TR chip are connected through the via hole in a wired mode in the PCB.
In some embodiments, the phased array subarray 3 can be hot-plugged and plug-and-play, so that the phased array subarray 3 with faults can be replaced at any time while signal transmission is not influenced; when part of the phased array sub-arrays 3 are damaged or have faults, one phased array sub-array 3 needs to be replaced, the on-line state of the phased array sub-array 3 needing to be replaced is relieved from system control, meanwhile, the wave beams of the automatic adjacent phased array sub-arrays 3 can automatically relay and cover the wave beams of the phased array sub-arrays to be replaced and close signals of the phased array sub-arrays 3 needing to be replaced, and therefore the radio frequency link is guaranteed not to be interrupted. When the subarray is replaced, after a new subarray is activated in the system, the switched-off signal is automatically switched on, the beam relay of the adjacent subarrays is automatically switched off, and the replaced subarray enters a normal working state. In the whole process, the polyhedral phased array antenna 2 can continuously work without interruption.
In some embodiments, referring to fig. 5, the radio frequency signal processing apparatus further includes a radio frequency signal exchanging module and an external radio frequency interface, an input end of the radio frequency signal exchanging module is connected to the beam radio frequency signal, and an output end of the radio frequency signal exchanging module is connected to the external radio frequency interface.
In some embodiments, the rf signal switching module includes an rf switch matrix and a matrix controller, an input terminal of the rf switch matrix is connected to the beam rf signal, an output terminal of the rf switch matrix is connected to the external rf interface, and an output terminal of the matrix controller is connected to a control terminal of the rf switch matrix.
In some embodiments, the rf switch matrix is a matrix in dimensions NT × MT.
Where M denotes the number of external radio interfaces, N denotes the number of phased array sub-arrays 3, NT denotes the product of N and T, and MT denotes the product of M and T.
In this embodiment, the specific connection between the beam rf signal and the external rf interface and the rf switch matrix is as shown in fig. 5, and the matrix controller can control the on/off state of the switch in the rf switch matrix, so that the beam rf signal passes through the rf switch matrix and is connected to the external system to form an arbitrary path, and the external rf interface connected to the external system and the tracked signal can be bound to each other, thereby controlling and stabilizing the beam rf signal and the external rf interface to be output at a specific external rf interface. For example, if only the external radio frequency interface 1 is required to output, the matrix controller controls the switches connected to the external radio frequency interface 1 in the radio frequency switch matrix to be closed, and the remaining switches in the radio frequency switch matrix to be opened, so that the beam radio frequency signal generated by any phased array sub-array 3 is only output through the external radio frequency interface 1.
From the above, the multi-beam polyhedral phased array antenna 2 is formed by generating a plurality of beam radio frequency signals through the phased array subarrays 3 in the polyhedral phased array antenna 2 by the simulation technology, so that the tracking of the communication satellite in the full airspace with different orbits and the establishment of the radio frequency link can be realized.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A full-airspace multilayer three-dimensional phased array antenna is characterized in that: the multi-layer phased array antenna comprises a base and a multi-layer phased array antenna installed on the base, wherein the multi-layer phased array antenna comprises a plurality of phased array sub-arrays, each phased array sub-array is used for generating T wave beam radio frequency signals, and T is a positive integer and is more than or equal to 1.
2. The full-airspace multilayer three-dimensional phased array antenna according to claim 1, characterized in that: the phased array subarrays are polygonal subarrays.
3. The full-airspace multilayer three-dimensional phased array antenna according to claim 1 or 2, characterized in that: the phased array subarray is a phased array transceiving subarray.
4. The full-airspace multilayer three-dimensional phased array antenna according to claim 1 or 2, characterized in that: the phased array sub-array comprises a phased array transmitting sub-array and a phased array receiving sub-array.
5. The full-airspace multilayer three-dimensional phased array antenna according to claim 1, characterized in that: phased array subarray includes a plurality of communication unit, communication unit includes the PCB board, the one side of PCB board is provided with the antenna, the another side of PCB board is provided with the TR chip, be equipped with the via hole in the PCB board, the antenna with the TR chip passes through the via hole is in walk the line connection in the PCB board.
6. The full-airspace multilayer three-dimensional phased array antenna according to claim 1, characterized in that: the antenna also comprises a radio frequency signal exchange module and an external radio frequency interface, wherein the input end of the radio frequency signal exchange module is accessed to the beam radio frequency signal, and the output end of the radio frequency signal exchange module is connected with the external radio frequency interface.
7. The full-airspace multilayer three-dimensional phased array antenna according to claim 6, characterized in that: the radio frequency signal exchange module comprises a radio frequency switch matrix and a matrix controller, wherein the input end of the radio frequency switch matrix is connected with the beam radio frequency signal, the output end of the radio frequency switch matrix is connected with the external radio frequency interface, and the output end of the matrix controller is connected with the control end of the radio frequency switch matrix.
8. The full-airspace multilayer three-dimensional phased array antenna according to claim 7, characterized in that: the radio frequency switch matrix includes a plurality of switches.
9. The full-airspace multilayer three-dimensional phased array antenna according to claim 8, characterized in that: the radio frequency switch matrix is a matrix with dimensions of NT x MT;
wherein M represents the number of the external radio frequency interfaces, N represents the number of the phased array sub-arrays, NT represents the product of N and T, and MT represents the product of M and T.
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| CN202010355079.5A CN111525263A (en) | 2020-04-29 | 2020-04-29 | Full-airspace multilayer three-dimensional phased array antenna |
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| CN202010355079.5A CN111525263A (en) | 2020-04-29 | 2020-04-29 | Full-airspace multilayer three-dimensional phased array antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740839A (en) * | 2021-08-09 | 2021-12-03 | 四川九洲空管科技有限责任公司 | Secondary radar device and method |
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