CN113488782B - Waveguide array antenna and communication device - Google Patents
Waveguide array antenna and communication device Download PDFInfo
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- CN113488782B CN113488782B CN202111044440.3A CN202111044440A CN113488782B CN 113488782 B CN113488782 B CN 113488782B CN 202111044440 A CN202111044440 A CN 202111044440A CN 113488782 B CN113488782 B CN 113488782B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
Abstract
The present application provides a waveguide array antenna, comprising: a plurality of antenna subarrays, a plurality of antenna subarrays are the matrix distribution, adjacent two rotation angle between the antenna subarray is 90, and adjacent rotate according to same direction of rotation between the antenna subarray in proper order, are 0 °, 90 °, 180 °, 270's distribution. The distribution mode can effectively reduce the axial ratio of the antenna.
Description
Technical Field
The present application belongs to the field of communication device technology, and more particularly, to a waveguide array antenna and a communication device.
Background
Satellite antennas, in order to improve service capability, usually adopt dual polarization form to extend service bandwidth, which requires that no influence can be generated between the two polarizations. For a dual circularly polarized antenna, when transmitting signals, the antenna not only transmits signals on main polarization, but also transmits signals on cross polarization, and in order to avoid interference, the terminal antenna needs to have high polarization isolation. The existing waveguide array antenna generally adopts a waveguide horn plus square waveguide partition plate circular polarizer as an antenna unit, and the antenna unit forms an array antenna through in-phase feed. This type of waveguide antenna has the problems of relatively poor antenna axis, poor isolation of the transmit and receive ports, and poor standing waves.
Disclosure of Invention
An object of the embodiments of the present application is to provide a waveguide array antenna and a communication device, so as to solve the technical problems of poor antenna axis ratio, poor port isolation and poor standing wave of the waveguide antenna in the prior art.
In order to achieve the purpose, the technical scheme adopted by the application is as follows:
there is provided a waveguide array antenna including: a plurality of antenna subarrays, a plurality of antenna subarrays are the matrix distribution, and adjacent two rotation angle between the antenna subarray is 90, and adjacent rotate according to same direction of rotation between the antenna subarray in proper order, are 0 °, 90 °, 180 °, 270's distribution.
In one embodiment, each of said antenna subarrays has one left-hand port and one right-hand port; the waveguide array antenna further includes: the first duplexers correspond to the antenna subarrays one by one, each first duplexer is provided with a first public port, a duplexer receiving left-handed port and a duplexer transmitting left-handed port, and each first public port is connected to the left-handed port of the corresponding antenna subarray; a plurality of first bridges, each of said first bridges having a first common port, two bridges receiving a left-handed port; each first electric bridge corresponds to two adjacent left-handed ports of the duplexer receiver, and each left-handed port of the electric bridge is connected with the corresponding left-handed port of the duplexer receiver; a plurality of second bridges, each of the second bridges having a second common port, two bridge launch left hand ports; each second electric bridge corresponds to two adjacent duplexer transmitting left-hand ports, and each electric bridge transmitting left-hand port is connected with the two duplexer transmitting left-hand ports corresponding to the electric bridge transmitting left-hand ports; the left-handed power receiving splitter is provided with a left-handed power receiving public port and a plurality of left-handed power receiving ports, and the left-handed power receiving ports are connected to all the first public ports; and the transmitting left-handed power divider is provided with a transmitting left-handed public port and a plurality of transmitting left-handed power dividing ports, and the plurality of transmitting left-handed power dividing ports are connected to all the second public ports.
In one embodiment, further comprising: the second duplexers correspond to the antenna subarrays one by one, each second duplexer is provided with a second public port, a duplexer receiving right-hand port and a duplexer transmitting right-hand port, and each second public port is connected to the right-hand port of the corresponding antenna subarray; a plurality of third bridges, each of said third bridges having a third common port, two bridge-receiving right-hand ports; each third electric bridge corresponds to two adjacent duplexer receiving right-hand ports, and each electric bridge receiving right-hand port is connected with the two corresponding duplexer receiving right-hand ports; a plurality of fourth bridges, each of said fourth bridges having a fourth common port, two bridge launch right-hand ports; each fourth electric bridge corresponds to two adjacent duplexer transmitting right-hand ports, and each electric bridge transmitting right-hand port is connected with the two corresponding duplexer transmitting right-hand ports; the right-hand power divider is provided with a right-hand public receiving port and a plurality of right-hand and left-hand power dividing receiving ports, and the right-hand power dividing receiving ports are connected to all the third public ports; and the transmitting right-handed power divider is provided with a transmitting right-handed public port and a plurality of transmitting right-handed power dividing ports, and a plurality of receiving right-handed power dividing ports are connected to all the fourth public ports.
In one embodiment, the antenna subarray comprises: the antenna comprises a plurality of antenna units, a plurality of antenna units and a plurality of antenna units, wherein the antenna units are distributed in a matrix manner, and each antenna unit is provided with a left-handed waveguide port and a right-handed waveguide port; the first waveguide power dividing unit is provided with a plurality of first sub-interfaces and a left-handed public port, the first sub-interfaces correspond to the left-handed waveguide ports of the antenna unit one by one, and each first sub-interface is connected to the corresponding left-handed waveguide port of the antenna unit; the second waveguide power dividing unit is provided with a plurality of second sub-interfaces and a right-handed common port, the second sub-interfaces correspond to the right-handed waveguide ports of the antenna unit one by one, and each second sub-interface is connected to the corresponding right-handed waveguide port of the antenna unit.
In one embodiment, the antenna elements are arranged in sixteen, sixteen antenna elements are distributed in a 4 × 4 matrix, and the first and second sub-interfaces are arranged in sixteen.
In one embodiment, the antenna unit includes: the waveguide radiation units are distributed in a matrix manner, and each waveguide radiation unit is provided with a left-hand circularly polarized port and a right-hand circularly polarized port; the first power divider unit is provided with a plurality of first sub-interfaces and a left-hand waveguide port, the first sub-interfaces correspond to the left-hand circularly polarized port one by one, and each first sub-interface is connected to the corresponding left-hand circularly polarized port; the second power divider unit is provided with a plurality of second sub-interfaces and a right-hand waveguide port, the second sub-interfaces correspond to the right-hand circularly polarized ports one to one, and each second sub-interface is connected to the corresponding right-hand circularly polarized port.
In one embodiment, the number of the waveguide radiation units is four, the four waveguide radiation units are distributed in a 2 × 2 matrix, and the number of the first sub-interface and the number of the second sub-interface are four.
In one embodiment, the waveguide radiating unit includes: the cross-shaped grating comprises a cross-shaped grating, a waveguide horn and a circular polarizer, wherein the cross-shaped grating is fixedly connected with the waveguide horn, the circular polarizer is provided with a left-handed circular polarization port, a right-handed circular polarization port and a public port, and the public port is connected with the waveguide horn.
In one embodiment, the number of the antenna subarrays is four, four of the antenna subarrays are distributed in a 1 × 4 array, the number of the first duplexer and the number of the second duplexer are four, and the number of the first bridge, the number of the second bridge, the number of the third bridge, and the number of the fourth bridge are two.
A communication device is also provided, which comprises the waveguide array antenna.
The application provides waveguide array antenna and communication device's beneficial effect lies in: the waveguide array antenna includes: a plurality of antenna sub-arrays; the antenna subarrays are distributed in a matrix shape, the rotation angle between every two adjacent antenna subarrays is 90 degrees, the adjacent antenna subarrays rotate in sequence in the same rotation direction, and the antenna subarrays are distributed in 0, 90, 180 and 270 degrees. The distribution mode can effectively reduce the axial ratio of the antenna.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a waveguide array antenna provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of an antenna subarray according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a first waveguide power dividing unit and a second waveguide power dividing unit according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an antenna subunit provided in the embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
100-waveguide array antenna; 110-antenna subarrays; 111-an antenna element; 112-cross bars; 113-a first drop interface; 114-a second drop interface; 115-right-hand port; 116-left hand port; 117-waveguide horn; 118-a circular polarizer; 119-a second power molecular unit; 1191 — a first power molecular unit; 120-a first duplexer; 121-receive left-handed port; 122 — transmit left-handed port; 123-a second diplexer; 124-receive right-hand port; 125-transmit right-hand port; 131-a first bridge; 132-a second bridge; 133-a third bridge; 134-a fourth bridge; 141-receiving a left-handed power divider; 142-transmitting left power divider; 153-receive right-handed power divider; 154-transmitting right-handed power divider; 151-a first waveguide power dividing unit; 152-second waveguide power dividing unit.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application 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 present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The waveguide array antenna and the communication device provided in the embodiments of the present application will now be described.
As shown in fig. 1, the present application provides a waveguide array antenna 100 including: a plurality of antenna sub-arrays 110, a plurality of first duplexers 120, a plurality of first bridges 131, a plurality of second bridges 132, a receiving left-handed power divider 141, and a transmitting left-handed power divider 142.
The plurality of antenna sub-arrays 110 are distributed in a matrix. Specifically, the number of the antenna subarrays 110 may be three, four, five, six, eight, and the like, for example: the number of the antenna subarrays 110 may be four or eight, and in the case that the number of the antenna subarrays 110 is four, the antenna subarrays 110 may be distributed in a 1 × 4 array, or may be distributed in a 2 × 2 array; in the case that the number of the antenna sub-arrays 110 is eight, the antenna sub-arrays 110 may be distributed in a 1 × 8 array, or may be distributed in a 2 × 4 array. The rotation angles between adjacent antenna sub-arrays 110 may be all 90 °, and in the case where the four antenna sub-arrays 110 are distributed in a 1 × 4 array, the rotation angles of the four antenna sub-arrays 110 are 0 °, 90 °, 180 °, and 270 °, respectively, in a direction from one end to the other end opposite to the one end. The distribution mode can effectively reduce the axial ratio of the antenna. Each antenna sub-array 110 has one left-hand port 116 and one right-hand port 115.
The first duplexers 120 and the antenna subarrays 110 are in one-to-one correspondence, each first duplexer 120 has a first common port, a duplexer receiving left-handed port 121 and a duplexer transmitting left-handed port 122, and each first common port is connected to the corresponding left-handed port 116. The first duplexer 120 is utilized to divide the left-handed port 116 into a duplexer receiving left-handed port 121 and a duplexer transmitting left-handed port 122, and the duplexer receiving left-handed port 121 and the duplexer transmitting left-handed port 122 can be respectively disposed at two ends of the first duplexer 120, so that the isolation of the transceiving ports can be effectively improved. Specifically, four first duplexers 120 may be provided, the four first duplexers 120 correspond to the four antenna sub-arrays 110, and the four first duplexers 120 may form four duplexer receiving left-handed ports 121 and four duplexer transmitting left-handed ports 122.
Each first bridge 131 corresponds to two adjacent duplexer receiving left-hand ports 121, and each first bridge 131 is connected to the two duplexer receiving left-hand ports 121 corresponding thereto. Specifically, the first bridges 131 may be provided in two, two of the first bridges 131 are connected to two adjacent duplexer receiving left-hand ports 121, and the other two first bridges 131 are connected to the other two adjacent duplexer receiving left-hand ports 121. Each of the first bridges 131 has two bridge receiving left-hand ports, one of which is connected to one of the adjacent two duplexer receiving left-hand ports 121, and one first common port, and the other of which is connected to the other of the adjacent two duplexer receiving left-hand ports 121. The two first bridges 131 may thus form two first common ports.
Each second bridge 132 corresponds to two adjacent duplexer transmitting left-hand ports 122, and each second bridge 132 is connected to the two duplexer transmitting left-hand ports 122 corresponding thereto. Specifically, the second bridges 132 may be arranged in two, two of the second bridges 132 are connected to two adjacent duplexer transmitting left-hand ports 122, and the other two second bridges 132 are connected to the other two adjacent duplexer transmitting left-hand ports 122. Each of the second bridges 132 has two bridge transmit left hand ports, one of which is connected to one of the adjacent two duplexer transmit left hand ports 122, and one second common port, the other of which is connected to the other of the adjacent two duplexer transmit left hand ports 122. The two second bridges 132 may thus form two second common ports.
The left power splitter 141 is connected to all the first bridges 131. Specifically, the left-hand power splitter 141 has two left-hand power splitting ports, one of the two left-hand power splitting ports is configured to be connected to the first common port of one of the two first bridges 131, and the other of the two left-hand power splitting ports is configured to be connected to the first common port of the other of the two first bridges 131. The left-hand power splitter 141 also has a left-hand common port for connection to external structures.
And a transmitting left-handed power divider 142 connected to all the second bridges 132. Specifically, the transmitting left-handed power splitter 142 has two transmitting left-handed power splitting ports, one of the two transmitting left-handed power splitting ports is configured to be connected to the second common port of one of the two second bridges 132, and the other of the two transmitting left-handed power splitting ports is configured to be connected to the second common port of the other of the two second bridges 132. The transmitting left power splitter 142 further has a transmitting left common port for connection with an external structure.
The waveguide array antenna 100 includes: a plurality of antenna sub-arrays 110, a plurality of first duplexers 120, a plurality of first bridges 131, a plurality of second bridges 132, a reception left-handed power divider 141, and a transmission left-handed power divider 142; the plurality of antenna subarrays 110 are distributed in a matrix, each first duplexer 120 is connected to the corresponding left-handed port 116, so that the left-handed port 116 is divided into a duplexer receiving left-handed port 121 and a duplexer transmitting left-handed port 122, each first bridge 131 is connected to two adjacent duplexer receiving left-handed ports 121 corresponding to the first bridge, each second bridge 132 is connected to two adjacent duplexer transmitting left-handed ports 122 corresponding to the second bridge, the receiving left-handed power divider 141 is connected to all the first bridges 131, and the transmitting left-handed power divider 142 is connected to all the second bridges 132; the left-handed power receiving splitter 141, the first bridges 131, the first duplexers 120, and the antenna subarrays 110 form a left-handed power receiving splitter network; the transmitting left-handed power divider 142, the plurality of second bridges 132, the plurality of first duplexers 120, and the plurality of antenna sub-arrays 110 together form a transmitting left-handed power dividing network; in the left-hand power receiving distribution network, the left-hand receiving ports 121 of the duplexers between two adjacent first duplexers 120 are subjected to power synthesis or distribution through the first bridges 131, and then are subjected to power synthesis or distribution through the waveguide power dividers, so that mutual coupling among the antenna sub-arrays 110 can be effectively avoided, and the axial ratio and standing wave performance of the antenna can be effectively improved; in the transmitting left-handed power distribution network, the duplexer transmitting left-handed port 122 between two adjacent first duplexers 120 performs power synthesis or distribution through the second bridge 132, and then performs power synthesis or distribution through the waveguide power distributor, so that mutual coupling among the antenna sub-arrays 110 can be effectively avoided, and the antenna axial ratio and standing wave performance can be effectively improved; and because the duplexer receiving left-hand port 121 and the duplexer transmitting left-hand port 122 are separated by the first duplexer 120, the isolation of the transceiving ports can be improved.
As shown in fig. 1, in some embodiments of the present application, the waveguide array antenna 100 may further include: a plurality of second duplexers 123, a plurality of third bridges 133, a plurality of fourth bridges 134, a receiving right-hand power divider 153, and a transmitting right-hand power divider 154.
The plurality of second duplexers 123 correspond to the plurality of antenna sub-arrays 110 one by one, each second duplexer 123 has a second common port, a duplexer receiving right-hand port 124 and a duplexer transmitting right-hand port 125, and each second common port is connected to the corresponding right-hand port 115. The right-hand port 115 can be divided into a duplexer receiving right-hand port 124 and a duplexer transmitting right-hand port 125 by using the second duplexer 123, and the duplexer receiving right-hand port 124 and the duplexer transmitting right-hand port 125 can be respectively arranged at two ends of the second duplexer 123, so that the isolation of the transmitting and receiving ports can be effectively improved. Specifically, four second duplexers 123 may be provided, the four second duplexers 123 respectively correspond to the four antenna sub-arrays 110, and the four second duplexers 123 may form four duplexer receiving right-hand ports 124 and four duplexer transmitting right-hand ports 125.
Each third bridge 133 corresponds to two adjacent duplexer-receiving right-hand ports 124, and each third bridge 133 is connected to the two duplexer-receiving right-hand ports 124 corresponding thereto. Specifically, the third bridges 133 may be arranged in two, two of the third bridges 133 are connected to two adjacent duplexer-receiving right-hand ports 124, and the other two third bridges 133 are connected to the other two adjacent duplexer-receiving right-hand ports 124. Each of the third bridges 133 has two bridge-receiving right-hand ports, one of which is connected to one of the two adjacent duplexer-receiving right-hand ports 124, and the other of which is connected to the other of the two adjacent duplexer-receiving right-hand ports 124, and a third common port. The two third bridges 133 may thus form two third common ports.
Each fourth bridge 134 corresponds to two adjacent duplexer transmitting right-hand ports 125, and each fourth bridge 134 is connected to the two duplexer transmitting right-hand ports 125 corresponding thereto. Specifically, the four bridges 134 may be provided in two, two of the four bridges 134 are connected to two adjacent duplexer transmitting right-hand ports 125, and the other two fourth bridges 134 are connected to the other two adjacent duplexer transmitting right-hand ports 125. Each of the fourth bridges 134 has two bridge transmit right-hand ports, one of which is connected to one of the two adjacent duplexer transmit right-hand ports 125, and one fourth common port, the other of which is connected to the other of the two adjacent duplexer transmit right-hand ports 125. The two fourth bridges 134 may thus form two fourth common ports.
And a right-hand power divider 153 connected to all the third bridges 133. Specifically, the receive right-hand power divider 153 has two receive right-hand power dividing ports, one of the two receive right-hand power dividing ports is configured to be connected to the third common port of one of the two third bridges 133, and the other of the two receive right-hand power dividing ports is configured to be connected to the third common port of the other of the two third bridges 133. The receive right power splitter 153 also has a receive right common port for connection to external structures.
And a transmitting right-handed power divider 154 connected to all the fourth bridges 134. Specifically, the transmission right-hand power divider 154 has two transmission right-hand power dividing ports, one of the two transmission right-hand power dividing ports is configured to be connected to the fourth common port of one of the two fourth bridges 134, and the other of the two transmission right-hand power dividing ports is configured to be connected to the fourth common port of the other of the two fourth bridges 134. The transmit right-hand power splitter 154 also has a transmit right-hand common port for connection to external structures.
The receiving right-hand power divider 153, the third bridges 133, the second duplexers 123 and the antenna subarrays 110 form a receiving right-hand power dividing network; the transmitting right-handed power divider 154, the plurality of fourth bridges 134, the plurality of second duplexers 123, and the plurality of antenna sub-arrays 110 together form a transmitting right-handed power dividing network; in the receiving right-hand power distribution network, the duplexer receiving right-hand port 124 between two adjacent second duplexers 123 performs power synthesis or distribution through the third bridge 133, and then performs power synthesis or distribution through the waveguide power divider, so that mutual coupling among the antenna sub-arrays 110 can be effectively avoided, and the antenna axial ratio and standing wave performance can be effectively improved; in the transmission right-hand power distribution network, the duplexer transmission right-hand port 125 between two adjacent second duplexers 123 performs power synthesis or distribution through the fourth bridge 134, and then performs power synthesis or distribution through the waveguide power divider, so that mutual coupling among the antenna sub-arrays 110 can be effectively avoided, and the antenna axial ratio and standing wave performance can be effectively improved; and because the duplexer receiving right-hand port 124 and the duplexer transmitting right-hand port 125 are separated by the second duplexer 123, the isolation of the transceiving ports can be improved.
As shown in fig. 2-4, in some embodiments of the present application, the antenna subarray 110 may include: a plurality of antenna units 111, a first waveguide power dividing unit 151, and a second waveguide power dividing unit 152.
The plurality of antenna elements 111 are distributed in a matrix. Specifically, the number of the antenna units 111 may be eight, sixteen, thirty-two, and the like, for example: the number of antenna elements 111 may be sixteen, and in the case that the number of antenna elements 111 is sixteen, the antenna elements 111 may be distributed in a 4 × 4 array. Each antenna element 111 has one left-handed waveguide port and one right-handed waveguide port.
The first waveguide power dividing unit 151 has a plurality of first dividing ports 113 and one left-handed port 116. Specifically, the number of the first branch ports 113 may be sixteen, the first branch ports 113 correspond to the left-handed waveguide ports one by one, and each of the first branch ports 113 is connected to the corresponding left-handed waveguide port. When the antenna transmits a signal, the first waveguide power dividing unit 151 may distribute the signal to sixteen antenna units 111, and the antenna units 111 radiate the signal; when the antenna receives a signal, the first waveguide power dividing unit 151 may combine signals provided by the sixteen antenna units 111.
The second waveguide power splitting unit 152 has a plurality of second splitting ports 114 and a right-hand port 115. Specifically, the number of the second sub-ports 114 may be sixteen, a plurality of the second sub-ports 114 correspond to a plurality of the dextrorotation waveguide ports one by one, and each of the second sub-ports 114 is connected to the dextrorotation waveguide port corresponding thereto. When the antenna transmits a signal, the second waveguide power dividing unit 152 may distribute the signal to sixteen antenna units 111, and the antenna units 111 radiate the signal; when the antenna receives signals, the second waveguide power dividing unit 152 may combine signals provided by the sixteen antenna units 111.
As shown in fig. 2 to 4, in some embodiments of the present application, the antenna unit 111 includes: a plurality of waveguide radiating elements, a first power sub-element 1191, and a second power sub-element 119.
The plurality of waveguide radiating units are distributed in a matrix. Specifically, four waveguide radiation units may be provided, and the four waveguide radiation units may be distributed in a 2 × 2 matrix. Each waveguide radiating element has a left-hand circularly polarized port and a right-hand circularly polarized port.
The first power splitting sub-unit 1191 has a plurality of first sub-interfaces and a left-handed waveguide port. The left-hand circular polarization ports are arranged on the left-hand circular polarization port and the right-hand circular polarization port, and the left-hand circular polarization ports are arranged on the left-hand circular polarization ports. Specifically, the number of the first sub-interfaces may be four, and the four sub-interfaces are respectively connected to the four left-handed circularly polarized ports.
The second power splitting sub-unit 119 has a plurality of second sub-interfaces and a single dextrorotatory waveguide port. The plurality of second sub-interfaces correspond to the plurality of right-hand circularly polarized ports one by one, and each second sub-interface is connected to the right-hand circularly polarized port corresponding to the second sub-interface. Specifically, the number of the second sub-interfaces may be four, and the four sub-interfaces are respectively connected to the four right-hand circularly polarized ports.
As shown in fig. 2 to 4, in some embodiments of the present application, the waveguide radiation unit may include: cross-bars 112, waveguide horns 117, and circular polarizer 118. The cross-bar 112 is fixedly connected to the waveguide horn 117, and the circular polarizer 118 has a left-hand circular polarization port, a right-hand circular polarization port, and a common port connected to the waveguide horn 117. The cross-shaped grid bars 112 and the waveguide horns 117 can be used for transmitting and receiving signals.
The application also provides a communication device comprising the waveguide array antenna. The communication device may transceive signals using a waveguide array antenna.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. A waveguide array antenna, comprising:
the antenna array comprises a plurality of antenna sub-arrays, wherein the antenna sub-arrays are distributed in a matrix manner, the rotation angle between every two adjacent antenna sub-arrays is 90 degrees, and the adjacent antenna sub-arrays rotate in sequence in the same rotation direction and are distributed in the ranges of 0 degree, 90 degrees, 180 degrees and 270 degrees; each antenna subarray is provided with a left-hand port and a right-hand port;
the first duplexers correspond to the antenna subarrays one by one, each first duplexer is provided with a first public port, a duplexer receiving left-handed port and a duplexer transmitting left-handed port, and each first public port is connected to the left-handed port of the corresponding antenna subarray;
a plurality of first bridges, each of said first bridges having a first common port, two bridges receiving a left-handed port; each first electric bridge corresponds to two adjacent duplexer receiving left-handed ports, and each electric bridge receiving left-handed port is connected to the corresponding duplexer receiving left-handed port;
a plurality of second bridges, each of the second bridges having a second common port, two bridge launch left hand ports; each second electric bridge corresponds to two adjacent duplexer transmitting left-handed ports, and each electric bridge transmitting left-handed port is connected to the two duplexer transmitting left-handed ports corresponding to the electric bridge transmitting left-handed port;
the left-handed power receiving splitter is provided with a left-handed power receiving public port and a plurality of left-handed power receiving ports, and the left-handed power receiving ports are connected to all the first public ports;
and the transmitting left-handed power divider is provided with a transmitting left-handed public port and a plurality of transmitting left-handed power dividing ports, and the plurality of transmitting left-handed power dividing ports are connected to all the second public ports.
2. The waveguide array antenna of claim 1, further comprising:
the second duplexers correspond to the antenna subarrays one by one, each second duplexer is provided with a second public port, a duplexer receiving right-hand port and a duplexer transmitting right-hand port, and each second public port is connected to the right-hand port of the corresponding antenna subarray;
a plurality of third bridges, each of said third bridges having a third common port, two bridge-receiving right-hand ports; each third electric bridge corresponds to two adjacent duplexer receiving right-hand ports, and each electric bridge receiving right-hand port is connected to the two duplexer receiving right-hand ports corresponding to the electric bridge receiving right-hand port;
a plurality of fourth bridges, each of said fourth bridges having a fourth common port, two bridge launch right-hand ports; each fourth electric bridge corresponds to two adjacent duplexer transmitting right-hand ports, and each electric bridge transmitting right-hand port is connected to the two duplexer transmitting right-hand ports corresponding to the electric bridge transmitting right-hand port;
the right-hand power divider is provided with a right-hand receiving public port and a plurality of right-hand receiving power dividing ports, and the plurality of right-hand receiving power dividing ports are connected to all the third public ports;
and the transmitting right-handed power divider is provided with a transmitting right-handed public port and a plurality of transmitting right-handed power dividing ports, and a plurality of receiving right-handed power dividing ports are connected to all the fourth public ports.
3. A waveguide array antenna as claimed in claim 2, wherein said antenna sub-array comprises:
the antenna comprises a plurality of antenna units, a plurality of antenna units and a plurality of antenna units, wherein the antenna units are distributed in a matrix manner, and each antenna unit is provided with a left-handed waveguide port and a right-handed waveguide port;
the first waveguide power dividing unit is provided with a plurality of first sub-interfaces and a left-hand port, the first sub-interfaces correspond to the left-hand waveguide ports of the antenna unit one by one, and each first sub-interface is connected to the corresponding left-hand waveguide port of the antenna unit;
the second waveguide power dividing unit is provided with a plurality of second sub-interfaces and a right-hand port, the second sub-interfaces correspond to the right-hand waveguide ports of the antenna unit one by one, and each second sub-interface is connected to the corresponding right-hand waveguide port of the antenna unit.
4. A waveguide array antenna as claimed in claim 3, wherein the number of said antenna elements is sixteen, sixteen of said antenna elements are arranged in a 4 x 4 matrix, and each of said first and second tap ports is sixteen.
5. The waveguide array antenna of claim 3, wherein the antenna unit comprises:
the waveguide radiation units are distributed in a matrix manner, and each waveguide radiation unit is provided with a left-hand circularly polarized port and a right-hand circularly polarized port;
the first power divider unit is provided with a plurality of first sub-interfaces and a left-hand waveguide port, the first sub-interfaces correspond to the left-hand circularly polarized port one by one, and each first sub-interface is connected to the corresponding left-hand circularly polarized port;
the second power divider unit is provided with a plurality of second sub-interfaces and a right-hand waveguide port, the second sub-interfaces correspond to the right-hand circularly polarized ports one to one, and each second sub-interface is connected to the corresponding right-hand circularly polarized port.
6. The waveguide array antenna of claim 5, wherein the number of the waveguide radiating elements is four, four waveguide radiating elements are distributed in a 2 x 2 matrix, and the number of the first sub-interfaces and the number of the second sub-interfaces are four.
7. The waveguide array antenna of claim 5, wherein the waveguide radiating element comprises: the cross-shaped grating comprises a cross-shaped grating, a waveguide horn and a circular polarizer, wherein the cross-shaped grating is fixedly connected with the waveguide horn, the circular polarizer is provided with a left-handed circular polarization port, a right-handed circular polarization port and a public port, and the public port is connected with the waveguide horn.
8. The waveguide array antenna of claim 2, wherein the antenna sub-arrays are four, four of the antenna sub-arrays are distributed in a 1 x 4 array, the first duplexer and the second duplexer are each provided in four, and the first bridge, the second bridge, the third bridge, and the fourth bridge are each provided in two.
9. A communication device comprising the waveguide array antenna of any one of claims 1-8.
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