CN113991296B - Dual-frequency common-caliber VICTS phased array antenna - Google Patents
Dual-frequency common-caliber VICTS phased array antenna Download PDFInfo
- Publication number
- CN113991296B CN113991296B CN202111175097.6A CN202111175097A CN113991296B CN 113991296 B CN113991296 B CN 113991296B CN 202111175097 A CN202111175097 A CN 202111175097A CN 113991296 B CN113991296 B CN 113991296B
- Authority
- CN
- China
- Prior art keywords
- radiation
- electromagnetic waves
- mode electromagnetic
- cts
- parallel plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a dual-frequency common-caliber VICTS phased-array antenna, which comprises a radiation layer, a parallel plate waveguide layer and a feed network layer, wherein the radiation layer, the parallel plate waveguide layer and the feed network layer are sequentially arranged from top to bottom, the feed network layer is used for accessing external TE mode electromagnetic waves and converting the accessed TE mode electromagnetic waves into TEM mode electromagnetic waves and outputting the TEM mode electromagnetic waves to the parallel plate waveguide layer, the parallel plate waveguide layer is used for transmitting the TEM mode electromagnetic waves input into the parallel plate waveguide layer to the radiation layer in an air medium conduction mode, and the radiation layer is used for transmitting the TEM mode electromagnetic waves transmitted to the radiation layer to a free space; the method has the advantages that the method can simultaneously cover two frequency bands of the mobile satellite communication system, and can reduce the area, the cost and the power consumption of the mobile satellite communication system when being used for the mobile satellite communication system.
Description
Technical Field
The invention relates to a VICTS phased array antenna, in particular to a dual-frequency common-caliber VICTS phased array antenna.
Background
CTS (Continuous transform Stub) array antennas were first introduced by Raytheon corporation in the 90's 20 th century in the united states, and a large number of antennas of planar structure were developed. As a further development of CTS antenna arrays, the VICTS (Variable initialization connecting transmit stub) technology is a two-dimensional beam scanning array that has a low profile, low power consumption, and strong mechanical robustness, while inheriting the original high efficiency.
The existing VICTS phased-array antenna mainly comprises an upper radiation CTS disc and a lower feed network disc, electric wave transmission among layers is an air medium conduction mode, impedance loss is reduced to the minimum degree, and therefore radiation efficiency is greatly improved. Two disks, namely the CTS disk and the lower feed network disk, are radiated in a horizontal plane at unequal speeds in a mechanical rotating mode to generate phase gradients, and two-dimensional beam scanning capacity can be obtained without using a phase shifter by utilizing the phase gradients, so that beam pointing of the VICTS phased-array antenna is consistent with beam pointing of a satellite. When two frequency band mobile satellite communication systems are involved, a pair of VICTS phased array antennas is typically required for the uplink and downlink, respectively. However, the area required by a pair of separate VICTS phased array antennas would be doubled, which is detrimental to the compactness of the mobile satellite communication system. Moreover, the number of required servo motors is doubled, which undoubtedly increases the cost and power consumption of the mobile satellite communication system.
Disclosure of Invention
The invention aims to provide a double-frequency common-caliber VICTS phased-array antenna which can simultaneously cover two frequency bands of a mobile satellite communication system and can reduce the area, the cost and the power consumption of the mobile satellite communication system when being used for the mobile satellite communication system.
The technical scheme adopted by the invention for solving the technical problems is as follows: a dual-frequency common-aperture VICTS phased-array antenna comprises a radiation layer, a parallel plate waveguide layer and a feed network layer which are sequentially arranged from top to bottom, wherein the feed network layer is used for accessing external TE mode electromagnetic waves and converting the accessed TE mode electromagnetic waves into TEM mode electromagnetic waves to be output to the parallel plate waveguide layer, the parallel plate waveguide layer is used for transmitting the TEM mode electromagnetic waves input into the parallel plate waveguide layer to the radiation layer in an air medium conduction mode, and the radiation layer is used for transmitting the TEM mode electromagnetic waves transmitted to the radiation layer to a free space; the radiation layer comprises a first circular metal plate and a radiation unit arranged on the first circular metal plate, the radiation unit comprises two different types of CTS radiation branch groups, the two different types of CTS radiation branch groups are respectively called a first CTS radiation branch group and a second CTS radiation branch group, the first CTS radiation branch group comprises n first CTS radiation branches which are uniformly distributed at intervals from front to back, the second CTS radiation branch group comprises n second CTS radiation branches which are uniformly distributed at intervals from front to back, n is an integer which is more than or equal to 2, the center distance between two adjacent first CTS radiation branches is positioned in the range of 0.5 wavelength to 1 wavelength of a low frequency band, each first CTS radiation branch comprises two stages of first transition branches which are formed by laminating two first transition branches from bottom to top and a first matching block which is arranged in the range of two stages of first transition branches positioned on the left side of the lower layer in the two stages of first transition branches, each second CTS radiation branch comprises two stages of second transition branches which are laminated from bottom to top and a second matching block which is positioned in the range of second transition branches from bottom to top, and two stages of second transition branches which are positioned in the range of second matching choke flow of second transition branches positioned in the range of the lower layer 4 and two stages of second transition branches which are positioned in the range of second transition branches from bottom to top, and two stages of second transition branches which are positioned in the range of second transition branches positioned in the range of the second transition branches; the n first CTS radiation branches and the n second CTS radiation branches are arranged in a crossed mode, the center distances between any two adjacent first CTS radiation branches and any two adjacent second CTS radiation branches are equal, and the center distances are located in the range of 0.5-1 wavelength of the high frequency band; when the parallel plate waveguide layer transmits high-frequency TEM mode electromagnetic waves to the radiation layer, the n first CTS radiation branches and the n second CTS radiation branches can radiate the high-frequency TEM mode electromagnetic waves to a free space; when the parallel plate waveguide layer transmits low-frequency TEM mode electromagnetic waves to the radiation layer, the n first CTS radiation branches can radiate the low-frequency TEM mode electromagnetic waves to a free space, the n second CTS radiation branches can restrain the low-frequency TEM mode electromagnetic waves, and the low-frequency TEM mode electromagnetic waves cannot radiate to the free space through the n second CTS radiation branches; the parallel plate waveguide layer comprises a second circular metal plate and a first parallel plate waveguide arranged on the second circular metal plate, the height of the first parallel plate waveguide is within the range of 1/4 wavelength to 1/2 wavelength of a low frequency band, a parallel plate slow wave structure is arranged on the lower surface of the first parallel plate waveguide, when the parallel plate waveguide layer transmits high-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure is used for reducing the wavelength of the high-frequency TEM mode electromagnetic waves and increasing the phase difference of the high-frequency TEM mode electromagnetic waves transmitted to the first CTS radiation branch and the second CTS radiation branch, when the parallel plate waveguide layer transmits the low-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure is used for reducing the wavelength of the low-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure comprises m identical rectangular blocks, m is an integer larger than or equal to 1, the m identical rectangular blocks are arranged at equal intervals to form a comb-shaped parallel plate waveguide and the first parallel plate waveguide and the parallel plate waveguide are in a left-right symmetrical structure, and the same plane is a left-right symmetrical structure; the feed network layer comprises a third circular metal plate and a feed network structure arranged on the third circular metal plate, the feed network structure comprises a first line source and a second line source, the first line source is used for accessing high-frequency TE mode electromagnetic waves and converting the accessed high-frequency TE mode electromagnetic waves into high-frequency TEM mode electromagnetic waves and outputting the high-frequency TEM mode electromagnetic waves to the parallel plate waveguide layer so as to excite the parallel plate waveguide, and the second line source is used for accessing low-frequency TE mode electromagnetic waves and converting the accessed low-frequency TE mode electromagnetic waves into low-frequency TEM mode electromagnetic waves and outputting the low-frequency TEM mode electromagnetic waves to the parallel plate waveguide layer so as to excite the parallel plate waveguide layer; the device comprises a first circular metal plate, a second circular metal plate and a third circular metal plate, wherein the first circular metal plate is coaxially arranged, the second circular metal plate is arranged on the third circular metal plate in a rotatable mode, the second circular metal plate is fixedly connected with the third circular metal plate, and a gap of 1 mm is formed between the second circular metal plate and the first circular metal plate to ensure that the first circular metal plate and the second circular metal plate can smoothly rotate relatively to complete two-dimensional beam scanning of an azimuth plane and a pitching plane.
The first line source is formed by cascading a five-stage equal-division rectangular waveguide power divider with 1 to 32, 32 TE mode electromagnetic wave conversion TEM mode electromagnetic wave conversion adapters and a second parallel plate waveguide, and the second line source is formed by cascading a five-stage unequal-division rectangular waveguide power divider with 1 to 20, 20 TE mode electromagnetic wave conversion TEM mode electromagnetic wave conversion adapters and a third parallel plate waveguide.
Compared with the prior art, the dual-frequency common-caliber VICTS phased-array antenna has the advantages that the dual-frequency common-caliber VICTS phased-array antenna is formed by the radiation layer, the parallel plate waveguide layer and the feed network layer, the feed network layer is used for accessing external TE mode electromagnetic waves and converting the accessed TE mode electromagnetic waves into TEM mode electromagnetic waves to be output to the parallel plate waveguide layer, the parallel plate waveguide layer is used for transmitting the TEM mode electromagnetic waves input into the parallel plate waveguide layer to the radiation layer in an air medium conduction mode, and the radiation layer is used for transmitting the TEM mode electromagnetic waves transmitted to the radiation layer to a free space; the radiation layer comprises a first circular metal plate and a radiation unit arranged on the first circular metal plate, the radiation unit comprises two different types of CTS radiation branch group, the two different types of CTS radiation branch groups are respectively called a first CTS radiation branch group and a second CTS radiation branch group, the first CTS radiation branch group comprises n first CTS radiation branches which are uniformly arranged at intervals from front to back, the second CTS radiation branch group comprises n second CTS radiation branches which are uniformly arranged at intervals from front to back, n is an integer larger than or equal to 2, the center distance between the two adjacent first CTS radiation branches is positioned in the range of 0.5 wavelength to 1 wavelength of a low frequency band, each first CTS radiation branch comprises two-stage first transition branches formed by laminating two first transition branches from bottom to top and a first rectangular matching block arranged on the left side of the lower layer in the two-stage first transition branches, each second radiation branch comprises a second transition branch which is laminated from bottom to top and a second transition branch arranged in the range of a second transition branch from bottom to top, and a second transition branch is positioned in the range of a second transition branch from bottom to 4, and each second radiation branch comprises a second transition branch which is positioned in the range of a second transition branch from bottom to top and a second transition branch; the n first CTS radiation branches and the n second CTS radiation branches are arranged in a crossed mode, the center distances between any two adjacent first CTS radiation branches and any two adjacent second CTS radiation branches are equal, and the center distances are located in the range of 0.5-1 wavelength of the high frequency band; when the parallel plate waveguide layer transmits high-frequency TEM mode electromagnetic waves to the radiation layer, the n first CTS radiation branches and the n second CTS radiation branches can radiate the high-frequency TEM mode electromagnetic waves to a free space; when the parallel plate waveguide layer transmits low-frequency TEM mode electromagnetic waves to the radiation layer, the n first CTS radiation branches can radiate the low-frequency TEM mode electromagnetic waves to a free space, the n second CTS radiation branches can restrain the low-frequency TEM mode electromagnetic waves, and the low-frequency TEM mode electromagnetic waves cannot radiate to the free space through the n second CTS radiation branches; the parallel plate waveguide layer comprises a second circular metal plate and a first parallel plate waveguide arranged on the second circular metal plate, the height of the first parallel plate waveguide is within the range of 1/4 wavelength to 1/2 wavelength of a low frequency band, the lower surface of the first parallel plate waveguide is provided with a parallel plate slow wave structure, when the parallel plate waveguide layer transmits high-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure is used for reducing the wavelength of the high-frequency TEM mode electromagnetic waves and simultaneously increasing the phase difference of the high-frequency TEM mode electromagnetic waves transmitted to the first CTS radiation branch and the second CTS radiation branch, when the parallel plate waveguide layer transmits the low-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure is used for reducing the wavelength of the low-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure comprises m identical rectangular blocks, m is an integer larger than or equal to 1, the m identical rectangular blocks are arranged at equal intervals to form a comb shape, the first parallel plate waveguide layer and the parallel plate waveguide layer structure are both in a bilateral symmetry structure, and the bilateral symmetry plane of the first parallel plate waveguide layer and the slow wave structure are in the same plane; the feed network layer comprises a third circular metal plate and a feed network structure arranged on the third circular metal plate, the feed network structure comprises a first line source and a second line source, the first line source is used for accessing high-frequency TE mode electromagnetic waves and converting the accessed high-frequency TE mode electromagnetic waves into high-frequency TEM mode electromagnetic waves and outputting the high-frequency TEM mode electromagnetic waves to the parallel plate waveguide layer so as to excite the parallel plate waveguide, and the second line source is used for accessing low-frequency TE mode electromagnetic waves and converting the accessed low-frequency TE mode electromagnetic waves into low-frequency TEM mode electromagnetic waves and outputting the low-frequency TEM mode electromagnetic waves to the parallel plate waveguide layer so as to excite the parallel plate waveguide layer; the two-dimensional wave beam scanning device comprises a first circular metal plate, a second circular metal plate and a third circular metal plate which are coaxially arranged, wherein the first circular metal plate is rotatably arranged on the second circular metal plate, the second circular metal plate is fixedly connected with the third circular metal plate, and a gap of 1 mm is formed between the second circular metal plate and the first circular metal plate so as to ensure that the first circular metal plate and the second circular metal plate can smoothly rotate relatively and complete two-dimensional wave beam scanning of an azimuth plane and a pitching plane; the invention realizes the output of high-frequency TEM mode electromagnetic waves and low-frequency TEM mode electromagnetic waves through the first CTS radiation branch nodes and the second CTS radiation branch nodes which are periodically distributed, and the first CTS radiation branch nodes and the second CTS radiation branch nodes can influence the phase of high-frequency and low-frequency TEM mode electromagnetic waves in a parallel plate waveguide layer according to specific equidistant periodic distribution, thereby balancing the initial angle, grating lobes and bandwidth, reducing the distance between the adjacent first CTS radiation branch nodes and the second CTS radiation branch nodes while controlling the initial angle deviation of high-frequency and low-frequency frequencies as much as possible, realizing the increase of the scanning angle, realizing the +/-45-degree angle scanning in both the high-frequency and low-frequency bands, ensuring the high-frequency and low-frequency bands, the relative balance of the adjacent first CTS radiation branch nodes, the adjacent second CTS radiation branch nodes and the adjacent two first CTS radiation branch nodes, a saw-tooth-shaped parallel plate waveguide layer loaded below the first parallel plate waveguide layer can reduce the relative balance of the high-frequency TEM mode electromagnetic wave structure and the low-frequency TEM mode electromagnetic wave transmission of a high-frequency TEM mode electromagnetic wave system, and the low-frequency TEM mode electromagnetic wave system can simultaneously reduce the phase difference of the high-frequency TEM mode electromagnetic wave transmission of the high-frequency parallel plate system, and the low-frequency TEM mode electromagnetic wave system, and the low-frequency communication of the low-frequency parallel plate system, and the low-frequency parallel plate system of the low-frequency parallel plate system, and the low-frequency satellite communication, and the high-frequency satellite can simultaneously, and the low-frequency satellite communication satellite.
Drawings
Fig. 1 is a burst diagram of a dual-band common-aperture VICTS phased array antenna of the present invention;
fig. 2 is a top view of the radiating layer of a dual-band common-aperture VICTS phased array antenna of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a top view of a parallel plate waveguide layer of a dual-band common-aperture VICTS phased array antenna of the present invention;
fig. 5 is a top view of a feed network layer of a dual-band common-aperture VICTS phased array antenna of the present invention;
FIG. 6 is a high-frequency rotating beam-steering normalized directional diagram of a dual-frequency common-aperture VICTS phased-array antenna according to the present invention;
fig. 7 is a low-frequency rotating beam pointing normalized directional diagram of a dual-frequency common-aperture VICTS phased array antenna according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
Example (b): as shown in fig. 1-5, a dual-frequency common-aperture VICTS phased-array antenna includes a radiation layer 1, a parallel-plate waveguide layer 2 and a feed network layer 3, which are sequentially arranged from top to bottom, the feed network layer 3 is configured to access external TE mode electromagnetic waves and convert the accessed TE mode electromagnetic waves into TEM mode electromagnetic waves to be output to the parallel-plate waveguide layer 2, the parallel-plate waveguide layer 2 is configured to transmit the TEM mode electromagnetic waves input therein to the radiation layer 1 in an air medium conduction manner, and the radiation layer 1 is configured to transmit the TEM mode electromagnetic waves transmitted thereto to a free space;
the radiation layer 1 comprises a first circular metal plate 4 and a radiation unit 5 arranged on the first circular metal plate 4, the radiation unit 5 comprises two different types of CTS radiation branch groups, the two different types of CTS radiation branch groups are respectively called a first CTS radiation branch group and a second CTS radiation branch group, the first CTS radiation branch group comprises n first CTS radiation branches 6 which are uniformly distributed at intervals from front to back, the second CTS radiation branch group comprises n second CTS radiation branches 7 which are uniformly distributed at intervals from front to back, n is an integer which is more than or equal to 2, the center distance between every two adjacent first CTS radiation branches 6 is positioned in the wavelength range of 0.5-1 wavelength of a low frequency band, each first CTS radiation branch 6 comprises two stages of first transition branches which are formed by laminating two first transition branches 8 from bottom to top and two stages of first transition branches which are arranged in the first transition branches on the left side of the first transition branches positioned on the lower layer in the two stages of the first transition branches 9, each second CTS radiation branch 7 comprises two stages of second transition branches 10 which are laminated from bottom to top, each second transition branch 7 is positioned in the second transition branches 10 which are positioned on the left side of the second transition branches positioned in the second transition blocks, and each second transition branch 7 is positioned in the second transition blocks which are positioned in the second transition of the second transition branches 10 and the second transition blocks which are positioned in the second transition of the second transition branches 12, and the second transition of the second transition branches which are positioned in the second transition of the second transition branches 12; the n first CTS radiation branches 6 and the n second CTS radiation branches 7 are arranged in a crossed mode, the center distances between any two adjacent first CTS radiation branches 6 and any two adjacent second CTS radiation branches 7 are equal, and the center distances are located in the range of 0.5-1 wavelength of a high frequency band; when the parallel plate waveguide layer 2 transmits high-frequency TEM mode electromagnetic waves to the radiation layer 1, the n first CTS radiation branches 6 and the n second CTS radiation branches 7 can radiate the high-frequency TEM mode electromagnetic waves to a free space; when the parallel plate waveguide layer 2 transmits low-frequency TEM mode electromagnetic waves to the radiation layer 1, the n first CTS radiation branches 6 can radiate the low-frequency TEM mode electromagnetic waves to a free space, the n second CTS radiation branches 7 suppress the low-frequency TEM mode electromagnetic waves, and the low-frequency TEM mode electromagnetic waves cannot radiate to the free space through the n second CTS radiation branches 7;
the parallel plate waveguide layer 2 comprises a second circular metal plate 13 and a first parallel plate waveguide 14 arranged on the second circular metal plate 13, the height of the first parallel plate waveguide 14 is within the range of 1/4 wavelength to 1/2 wavelength of a low frequency band, a parallel plate slow wave structure is arranged on the lower surface of the first parallel plate waveguide 14, when the parallel plate waveguide layer 2 transmits high-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure is used for reducing the wavelength of the high-frequency TEM mode electromagnetic waves and increasing the phase difference of the high-frequency TEM mode electromagnetic waves transmitted to the first CTS radiation branch section 6 and the second CTS radiation branch section 7, when the parallel plate waveguide layer 2 transmits the low-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure is used for reducing the wavelength of the low-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure comprises m identical rectangular blocks, m is an integer larger than or equal to 1, the m identical rectangular blocks are arranged at equal intervals to form a comb shape, the first parallel plate waveguide layer 14 and the parallel plate slow wave structure are both in a left-right symmetrical structure, and the left-right symmetrical plane of the same plane;
the feed network layer 3 comprises a third circular metal plate 15 and a feed network structure arranged on the third circular metal plate 15, the feed network structure comprises a first line source 16 and a second line source 17, the first line source 16 is used for accessing a high-frequency TE mode electromagnetic wave and converting the accessed high-frequency TE mode electromagnetic wave into a high-frequency TEM mode electromagnetic wave to be output to the parallel plate waveguide layer 2 so as to excite the parallel plate waveguide layer 2, and the second line source 17 is used for accessing a low-frequency TE mode electromagnetic wave and converting the accessed low-frequency TE mode electromagnetic wave into a low-frequency TEM mode electromagnetic wave to be output to the parallel plate waveguide layer 2 so as to excite the parallel plate waveguide layer 2;
first circular metal sheet 4, the coaxial setting of the circular metal sheet of second 13 and third circular metal sheet 15, first circular metal sheet 4 adopts rotatable mode to install on the circular metal sheet 13 of second, the circular metal sheet of second 13 and the circular metal sheet 15 fixed connection of third, there is 1 millimeter's clearance between the circular metal sheet of second 13 and the circular metal sheet of first 4, in order to guarantee that first circular metal sheet 4 and the circular metal sheet of second 13 can smoothly carry out relative rotation, accomplish the two-dimensional beam scanning of azimuth plane and every single move face.
In this embodiment, the first line source 16 is formed by cascade-connecting a 1-32-divided five-stage equal rectangular waveguide power divider 18, 32 TE mode electromagnetic wave to TEM mode electromagnetic wave converters 19, and a second parallel plate waveguide 20, and the second line source 17 is formed by cascade-connecting a 1-20-divided five-stage unequal rectangular waveguide power divider 21, 20 TE mode electromagnetic wave to TEM mode electromagnetic wave converters 22, and a third parallel plate waveguide 23.
The dual-frequency common-aperture VICTS phased-array antenna is simulated, wherein a high-frequency rotating beam direction normalization directional diagram of the dual-frequency common-aperture VICTS phased-array antenna is shown in figure 6, and a low-frequency rotating beam direction normalization directional diagram of the dual-frequency common-aperture VICTS phased-array antenna is shown in figure 7. In fig. 6, ro represents the rotation angle of the radiation layer, the abscissa represents the position of the main beam of the antenna, and the ordinate represents the gain. As can be seen from fig. 6 and 7, when a high-frequency electromagnetic wave or a low-frequency electromagnetic wave is input, the radiation layer of the antenna is rotated, and the beam direction of the antenna is observed to change with the change of the rotation angle of the radiation layer, the main beam direction of the antenna changes with the rotation of the radiation layer, and when the radiation layer rotates by 30 °, the beam direction of the antenna can be 45 degrees.
Claims (2)
1. The dual-frequency common-aperture VICTS phased-array antenna is characterized by comprising a radiation layer, a parallel plate waveguide layer and a feed network layer which are sequentially arranged from top to bottom, wherein the feed network layer is used for accessing external TE mode electromagnetic waves and converting the accessed TE mode electromagnetic waves into TEM mode electromagnetic waves and outputting the TEM mode electromagnetic waves to the parallel plate waveguide layer, the parallel plate waveguide layer is used for transmitting the TEM mode electromagnetic waves input into the parallel plate waveguide layer to the radiation layer in an air medium conduction mode, and the radiation layer is used for transmitting the TEM mode electromagnetic waves transmitted to the radiation layer to a free space;
the radiation layer comprises a first circular metal plate and a radiation unit arranged on the first circular metal plate, the radiation unit comprises two different types of CTS radiation branch groups, the two different types of CTS radiation branch groups are respectively called a first CTS radiation branch group and a second CTS radiation branch group, the first CTS radiation branch group comprises n first CTS radiation branches which are uniformly distributed at intervals from front to back, the second CTS radiation branch group comprises n second CTS radiation branches which are uniformly distributed at intervals from front to back, n is an integer which is more than or equal to 2, the center distance between two adjacent first CTS radiation branches is positioned in the range of 0.5 wavelength to 1 wavelength of a low frequency band, each first CTS radiation branch comprises two stages of first transition branches which are formed by laminating two first transition branches from bottom to top and a first matching block which is arranged in the range of two stages of first transition branches positioned on the left side of the lower layer in the two stages of first transition branches, each second CTS radiation branch comprises two stages of second transition branches which are laminated from bottom to top and a second matching block which is positioned in the range of second transition branches from bottom to top, and two stages of second transition branches which are positioned in the range of second matching choke flow of second transition branches positioned in the range of the lower layer 4 and two stages of second transition branches which are positioned in the range of second transition branches from bottom to top, and two stages of second transition branches which are positioned in the range of second transition branches positioned in the range of the second transition branches; the n first CTS radiation branches and the n second CTS radiation branches are arranged in a crossed mode, the center distances between any two adjacent first CTS radiation branches and any two adjacent second CTS radiation branches are equal, and the center distances are located in the range of 0.5-1 wavelength of the high frequency band; when the parallel plate waveguide layer transmits high-frequency TEM mode electromagnetic waves to the radiation layer, the n first CTS radiation branches and the n second CTS radiation branches can radiate the high-frequency TEM mode electromagnetic waves to a free space; when the parallel plate waveguide layer transmits low-frequency TEM mode electromagnetic waves to the radiation layer, the n first CTS radiation branches can radiate the low-frequency TEM mode electromagnetic waves to a free space, the n second CTS radiation branches can restrain the low-frequency TEM mode electromagnetic waves, and the low-frequency TEM mode electromagnetic waves cannot radiate to the free space through the n second CTS radiation branches;
the parallel plate waveguide layer comprises a second circular metal plate and a first parallel plate waveguide arranged on the second circular metal plate, the height of the first parallel plate waveguide is within the range of 1/4 wavelength to 1/2 wavelength of a low frequency band, a parallel plate slow wave structure is arranged on the lower surface of the first parallel plate waveguide, when the parallel plate waveguide layer transmits high-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure is used for reducing the wavelength of the high-frequency TEM mode electromagnetic waves and increasing the phase difference of the high-frequency TEM mode electromagnetic waves transmitted to the first CTS radiation branch and the second CTS radiation branch, when the parallel plate waveguide layer transmits the low-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure is used for reducing the wavelength of the low-frequency TEM mode electromagnetic waves, the parallel plate slow wave structure comprises m identical rectangular blocks, m is an integer larger than or equal to 1, the m identical rectangular blocks are arranged at equal intervals to form a comb-shaped parallel plate waveguide and the first parallel plate waveguide and the parallel plate waveguide are in a left-right symmetrical structure, and the same plane is a left-right symmetrical structure;
the feed network layer comprises a third circular metal plate and a feed network structure arranged on the third circular metal plate, the feed network structure comprises a first line source and a second line source, the first line source is used for accessing TE mode electromagnetic waves of high frequency and converting the accessed high frequency TE mode electromagnetic waves into TEM mode electromagnetic waves at high frequency and outputting the TEM mode electromagnetic waves to the parallel plate waveguide layer so as to excite the parallel plate waveguide, and the second line source is used for accessing TE mode electromagnetic waves of low frequency and converting the accessed TE mode electromagnetic waves of low frequency into TEM mode electromagnetic waves at low frequency and outputting the TEM mode electromagnetic waves to the parallel plate waveguide layer so as to excite the parallel plate waveguide layer;
the device comprises a first circular metal plate, a second circular metal plate and a third circular metal plate, wherein the first circular metal plate is coaxially arranged, the second circular metal plate is arranged on the third circular metal plate in a rotatable mode, the second circular metal plate is fixedly connected with the third circular metal plate, and a gap of 1 mm is formed between the second circular metal plate and the first circular metal plate to ensure that the first circular metal plate and the second circular metal plate can smoothly rotate relatively to complete two-dimensional beam scanning of an azimuth plane and a pitching plane.
2. The dual-frequency common-aperture VICTS phased-array antenna according to claim 1, wherein the first line source is formed by cascading 1-32 five-stage equal-division rectangular waveguide power divider, 32 TE mode electromagnetic wave-to-TEM mode electromagnetic wave adapters and a second parallel plate waveguide, and the second line source is formed by cascading 1-20 five-stage unequal-division rectangular waveguide power divider, 20 TE mode electromagnetic wave-to-TEM mode electromagnetic wave adapters and a third parallel plate waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111175097.6A CN113991296B (en) | 2021-10-09 | 2021-10-09 | Dual-frequency common-caliber VICTS phased array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111175097.6A CN113991296B (en) | 2021-10-09 | 2021-10-09 | Dual-frequency common-caliber VICTS phased array antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113991296A CN113991296A (en) | 2022-01-28 |
| CN113991296B true CN113991296B (en) | 2022-11-29 |
Family
ID=79737828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111175097.6A Active CN113991296B (en) | 2021-10-09 | 2021-10-09 | Dual-frequency common-caliber VICTS phased array antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113991296B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051144B (en) * | 2022-05-27 | 2023-04-21 | 宁波大学 | Dual-frenquency common bore wave beam scanning antenna of big scanning scope |
| CN115117616B (en) * | 2022-08-25 | 2022-12-02 | 成都国恒空间技术工程股份有限公司 | VICTS antenna based on RGW structure |
| CN115101926A (en) * | 2022-08-29 | 2022-09-23 | 成都国恒空间技术工程股份有限公司 | Dual-frequency VICTS phased-array antenna with orthogonal structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655720A (en) * | 2015-12-09 | 2016-06-08 | 上海大学 | Broad-band high-gain scannable panel antenna of parabolic reflection surface feeding |
| EP3032648A1 (en) * | 2014-12-12 | 2016-06-15 | ThinKom Solutions, Inc. | Optimized true-time delay beam-stabilization techniques for instantaneous bandwidth enhancement |
| CN106992354A (en) * | 2016-11-27 | 2017-07-28 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Tear submatrix feed VICTS open and defend exceedingly high line |
| WO2020180220A1 (en) * | 2019-03-04 | 2020-09-10 | Saab Ab | Dual-band multimode antenna feed |
| CN111786133A (en) * | 2020-08-07 | 2020-10-16 | 成都天锐星通科技有限公司 | Transmit-receive common-caliber phased array antenna |
-
2021
- 2021-10-09 CN CN202111175097.6A patent/CN113991296B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3032648A1 (en) * | 2014-12-12 | 2016-06-15 | ThinKom Solutions, Inc. | Optimized true-time delay beam-stabilization techniques for instantaneous bandwidth enhancement |
| CN105655720A (en) * | 2015-12-09 | 2016-06-08 | 上海大学 | Broad-band high-gain scannable panel antenna of parabolic reflection surface feeding |
| CN106992354A (en) * | 2016-11-27 | 2017-07-28 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Tear submatrix feed VICTS open and defend exceedingly high line |
| WO2020180220A1 (en) * | 2019-03-04 | 2020-09-10 | Saab Ab | Dual-band multimode antenna feed |
| CN111786133A (en) * | 2020-08-07 | 2020-10-16 | 成都天锐星通科技有限公司 | Transmit-receive common-caliber phased array antenna |
Non-Patent Citations (2)
| Title |
|---|
| High-Performance E-Band Continuous Transverse Stub Array Antenna With a 45° Linear Polarizer;Yang You等;《 IEEE Antennas and Wireless Propagation Letters》;20190909;全文 * |
| Shared-Aperture Variable Inclination Continuous Transverse Stub Antenna Working at K- and Ka-Bands for Mobile Satellite Communication;Rui Sen Hao等;《IEEE Transactions on Antennas and Propagation》;20200406;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113991296A (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113991296B (en) | Dual-frequency common-caliber VICTS phased array antenna | |
| CN108539417B (en) | Circular polarization orbit angular momentum reflective array antenna | |
| US6011520A (en) | Geodesic slotted cylindrical antenna | |
| CN113796024A (en) | Low complexity beam steering in array aperture | |
| CN111740226B (en) | Design method for dual-polarization orbital angular momentum state multiplexing super surface | |
| CN107968267B (en) | Multi-beam end-fire antenna | |
| Juneja et al. | Design considerations for implementation of planar antennas for millimeter wave (mmW) 5G network: a review | |
| CN108664694A (en) | A kind of circular polarisation vortex electromagnetic wave production method | |
| WO2018121256A1 (en) | Low profile antenna | |
| CN113013638A (en) | Broadband folding type plane reflection array antenna | |
| CN111052507A (en) | Antenna and wireless device | |
| CN114094349A (en) | Transmit-receive integrated VICTS phased array antenna | |
| CN112271444B (en) | High-gain dual-polarization SIW-CTS antenna array | |
| CN107546478B (en) | Wide-angle scanning phased array antenna adopting special directional diagram array elements and design method | |
| CN216288953U (en) | Dual-frequency common-caliber VICTS phased array antenna | |
| CN113381202A (en) | All-metal dual-polarization luneberg lens multi-beam antenna | |
| CN115051144B (en) | Dual-frenquency common bore wave beam scanning antenna of big scanning scope | |
| TWI679803B (en) | Antenna system | |
| CN110649397A (en) | Reconfigurable planar reflective array antenna of integrated reflective array | |
| CN111937240A (en) | Fast roll-off antenna array surface with heterogeneous antenna arrangement | |
| CN111509393B (en) | One-dimensional plane periodic leaky-wave antenna based on microstrip line structure | |
| WO2022077185A1 (en) | Multi-frequency band common-aperture antenna and communication device | |
| Yamada et al. | Low sidelobe and tilted beam base-station antennas for smaller-cell systems | |
| Karimi et al. | Design of an Amplitude-Tapered Corporate-Feed Slot Array Antenna with Reduced Side-Lobe Level for Silicon Micromachining | |
| Sun et al. | A review of microwave electronically scanned array: Concepts and applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |