CN113871889A - Dual-band common-caliber antenna system - Google Patents
Dual-band common-caliber antenna system Download PDFInfo
- Publication number
- CN113871889A CN113871889A CN202111129578.3A CN202111129578A CN113871889A CN 113871889 A CN113871889 A CN 113871889A CN 202111129578 A CN202111129578 A CN 202111129578A CN 113871889 A CN113871889 A CN 113871889A
- Authority
- CN
- China
- Prior art keywords
- antenna
- band
- shared
- frequency
- radio frequency
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000010287 polarization Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 9
- 238000010586 diagram Methods 0.000 description 10
- 238000012937 correction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a dual-band common-caliber antenna system which comprises a metal reflecting plate, a non-shared antenna, a high-band-pass filter, a duplexer, a high-band transceiver module, a low-band transceiver module, a radio-frequency connector and a radio-frequency cable assembly, wherein the metal reflecting plate is arranged on the metal reflecting plate; one end of the high-frequency band-pass filter is connected with the unshared antenna, and the other end of the high-frequency band-pass filter is connected with the high-frequency band transceiving module; one end of the duplexer is provided with a radio frequency main interface, and the other end of the duplexer is provided with a low-frequency-band radio frequency interface and a high-frequency-band radio frequency interface; the radio frequency main port of the duplexer is connected with the common antenna through a radio frequency cable assembly and a radio frequency connector, the low-frequency-band radio frequency interface is connected with the low-frequency-band transceiver module, and the high-frequency-band radio frequency interface is connected with the high-frequency-band transceiver module; the non-shared antenna and the shared antenna have the same section height; the shared antennas are arranged between the unshared antennas in an inserting mode. The invention has the advantages that: the problem of shielding of scanning lobes can be avoided, and low/ultra-low side lobes can be realized.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a dual-band common-caliber antenna system.
Background
In the field of communication and radar, a platform is often provided with antenna array surfaces of a plurality of frequency bands, and if the antenna array surfaces of each frequency band are independently arranged, the required space is large, so that the platform cannot be suitable for a small platform or a platform moving at a high speed. The common aperture antenna array is a feasible solution to the above problems, and therefore, the common aperture antenna technology is rapidly developed.
For example, chinese patent application No. CN201811562745.1 discloses a dual-band common-aperture waveguide slot antenna, in which a Ka waveguide slot antenna is disposed on an X waveguide slot antenna, and stacked up and down in a 1-to-2 manner to achieve common aperture. Further, as disclosed in chinese patent application with publication number CN106299723A, a common aperture antenna is disclosed, in which antennas of two bands are stacked up and down to realize a common aperture. The Chinese patent with the application number of CN201610372946.X discloses a waveguide microstrip common-caliber antenna, which is realized by arranging microstrip antennas at two sides of a ridge waveguide slot antenna. In the phased array composed of the co-aperture antennas, because the antenna array planes of the two wave bands have height difference, the high-profile antenna can shield the low-profile antenna unit during lobe scanning, and the lobe pattern characteristic is influenced.
In order to further solve the problem of shielding of scanning lobes, the chinese patent application with publication number CN109904599A discloses a K/Ka dual-band common-aperture antenna array, in which antenna array planes of two K/Ka bands are disposed on the same layer of dielectric substrate, thereby avoiding the shielding problem, but the two sets of antenna array planes are still independent from each other, and radiation patches are closely arranged on the apertures of the antenna array planes, because the two antenna array planes are closer, the mutual coupling is larger, the electrical performance is affected mutually, and the integration degree is poorer. The Chinese patent with the application number of CN201310538063.8 discloses a dual-frequency dual-circular-polarization common-aperture antenna array for two-dimensional phase-controlled scanning, which realizes Ka/Ku dual-frequency-band common-aperture and has the same section height. In the overlapping of the two frequency bands, 8 Ka frequency band antennas surround 1 Ku frequency band antenna, and the Ku frequency band antenna is arranged at the edge part. Although the reduction of side lobes and grating lobe suppression is facilitated by adjusting the distance between the Ku band antennas at the edges, the requirement of low/ultra-low side lobes is difficult to realize in both frequency bands due to mutual nesting of the shared parts, and the application scenarios are greatly limited.
In summary, the aperture antenna array schemes disclosed in the prior art all directly realize the common aperture of two sets of antenna array planes in different frequency bands by stacking up and down and nesting, and only realize the common aperture of the array plane level, which can not avoid the problem of scanning lobe shielding or hardly realize low/ultra-low side lobes.
Disclosure of Invention
The technical problem to be solved by the invention is as follows:
the antenna in the prior art has the technical problems that the scanning lobe is shielded or the low/ultra-low side lobe is difficult to realize.
The invention solves the technical problems through the following technical means: a dual-band common-caliber antenna system comprises a metal reflecting plate, wherein a non-shared antenna, a high-band-pass filter, a duplexer, a high-band transceiver module, a low-band transceiver module, a radio-frequency connector and a radio-frequency cable assembly are arranged on the metal reflecting plate;
one end of the high-frequency band-pass filter is connected with the unshared antenna through a radio frequency cable assembly and a radio frequency connector, and the other end of the high-frequency band-pass filter is connected with the high-frequency band transceiving module;
one end of the duplexer is provided with a radio frequency main interface, and the other end of the duplexer is provided with a low-frequency-band radio frequency interface and a high-frequency-band radio frequency interface;
the radio frequency main port of the duplexer is connected with the common antenna through a radio frequency cable assembly and a radio frequency connector, the low-frequency-band radio frequency interface is connected with the low-frequency-band transceiver module, and the high-frequency-band radio frequency interface is connected with the high-frequency-band transceiver module;
the frequency bandwidth of the unshared antenna at least covers a low frequency band or a high frequency band, and the frequency bandwidth of the shared antenna at least simultaneously covers the low frequency band and the high frequency band;
the non-shared antenna and the shared antenna have the same section height;
the shared antennas are arranged between the unshared antennas in an inserting mode.
The antenna system of the present invention has the same profile height. The non-shared antenna and the shared antenna adopt broadband antennas with the same antenna profile height, so that the problem of scanning lobe shielding is avoided; the antenna system of the invention can realize low/ultra-low side lobes. Due to the arrangement rule of the array planes formed by the unshared antenna and the shared antenna, the low/ultra-low side lobe can be realized; the antenna system has the characteristic of light weight. The traditional two sets of antenna array planes share one array plane aperture and correspond to two sets of mutually independent antenna units, but because part of the antenna units of the array planes are shared, the number of the antenna units is reduced, the total weight of the system is reduced, and the method is very critical to the airborne/missile-borne/satellite-borne platform with strict requirements on weight. In addition, the shared antenna also saves the space of the aperture of the antenna array surface, and can be provided with other devices such as a correction line and the like in more space.
Optimally, the unshared antenna and the shared antenna are arranged on the metal reflecting plate;
the radio frequency connector is arranged below the metal reflecting plate, and an inner conductor of the radio frequency connector penetrates through the metal reflecting plate and is electrically connected with the corresponding unshared antenna or the shared antenna.
Optimally, the antenna type of the unshared antenna is one of a printed element antenna, a Vivaldi antenna, a spiral antenna or a horn antenna;
the antenna type of the common antenna is one of a printed element antenna, a Vivaldi antenna, a spiral antenna or a horn antenna.
Optimally, the non-shared antenna and the shared antenna are the same in antenna type;
the unshared antenna has the same frequency bandwidth as the shared antenna.
In practical engineering application, the unshared antenna and the shared antenna adopt the same antenna form, have the same frequency bandwidth and the same section height, can simplify the antenna type in the array surface and reduce the design difficulty.
Optimally, the unshared antenna comprises a first horizontally polarized antenna and/or a first vertically polarized antenna;
the common antenna comprises a second horizontally polarized antenna and/or a second vertically polarized antenna;
the unshared antenna and the shared antenna have at least one polarization that is the same.
Optimally, the first horizontally polarized antenna and the first vertically polarized antenna are distributed according to a T shape, a cross shape or an L shape;
the second horizontal polarization antenna and the second vertical polarization antenna are distributed according to a T shape, a cross shape or an L shape.
Optimally, the frequency ratio of the high frequency band to the low frequency band in the system is M;
in the common-caliber area, the ratio of the number of the common antennas to the number of the non-common antennas is N;
and when M is more than or equal to N +1, the shared antenna array is distributed in the non-shared antenna.
Optimally, when M is larger than or equal to N +1, the unshared antennas and the shared antennas are sequentially and alternately distributed in a linear array along the first direction to form a first array distribution unit.
The unshared antennas and the shared antennas are sequentially and alternately distributed along a linear array in the first direction, antenna array surfaces of low-frequency band and high-frequency band antenna systems are regularly arranged, and low/ultra-low side lobes are easily realized in engineering.
Preferably, the first array distribution unit is linearly distributed along a second direction to form a second array distribution unit, and the second direction is perpendicular to the first direction.
Optimally, the periphery of the second array distribution unit is provided with unshared antennas in an array distribution along the direction parallel to the edge of the second array distribution unit, wherein the unshared antennas parallel to the first direction are in rows, and the unshared antennas parallel to the second direction are in columns;
two sides of the second array distribution unit are respectively provided with a row of non-shared antennas, and two sides of the second array distribution unit are respectively provided with two columns of non-shared antennas.
The aperture of the middle high-frequency band antenna array surface of the antenna array surface is larger than the aperture of the low-frequency band antenna array surface, the middle is a low-frequency band and high-frequency band shared aperture area, and the antenna array surface consists of a non-shared antenna and a shared antenna, wherein the frequency band covered by the non-shared antenna is the high frequency band, and the shared antenna covers the low frequency band and the high frequency band simultaneously; the non-shared aperture at the edge of the array surface consists of a non-shared antenna, and the frequency band is a high frequency band.
The invention has the advantages that:
1. the antenna system of the present invention has the same profile height. The non-shared antenna and the shared antenna adopt broadband antennas with the same antenna profile height, so that the problem of scanning lobe shielding is avoided; the antenna system of the invention can realize low/ultra-low side lobes. Due to the arrangement rule of the array planes formed by the unshared antenna and the shared antenna, the low/ultra-low side lobe can be realized; the antenna system has the characteristic of light weight. The traditional two sets of antenna array planes share one array plane aperture and correspond to two sets of mutually independent antenna units, but because part of the antenna units of the array planes are shared, the number of the antenna units is reduced, the total weight of the system is reduced, and the method is very critical to the airborne/missile-borne/satellite-borne platform with strict requirements on weight. In addition, the shared antenna also saves the space of the aperture of the antenna array surface, and can be provided with other devices such as a correction line and the like in more space.
2. In practical engineering application, the unshared antenna and the shared antenna adopt the same antenna form, have the same frequency bandwidth and the same section height, can simplify the antenna type in the array surface and reduce the design difficulty.
3. The unshared antennas and the shared antennas are sequentially and alternately distributed along a linear array in the first direction, antenna array surfaces of low-frequency band and high-frequency band antenna systems are regularly arranged, and low/ultra-low side lobes are easily realized in engineering.
4. The aperture of the middle high-frequency band antenna array surface of the antenna array surface is larger than the aperture of the low-frequency band antenna array surface, the middle is a low-frequency band and high-frequency band shared aperture area, and the antenna array surface consists of a non-shared antenna and a shared antenna, wherein the frequency band covered by the non-shared antenna is the high frequency band, and the shared antenna covers the low frequency band and the high frequency band simultaneously; the non-shared aperture at the edge of the array surface consists of a non-shared antenna, and the frequency band is a high frequency band.
Drawings
FIG. 1 is a schematic diagram of the connection of an unshared antenna in the embodiment of the present invention;
FIG. 2 is a schematic diagram of a connection of a common antenna according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a duplexer in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a T-shaped distribution of a horizontally polarized antenna and a vertically polarized antenna according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a cross-shaped arrangement of horizontally polarized antennas and vertically polarized antennas in an embodiment of the present invention;
FIG. 6 is a schematic diagram of an L-shaped distribution of a horizontally polarized antenna and a vertically polarized antenna according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an alternate array of unshared and shared antennas in accordance with an embodiment of the present invention;
FIG. 8 is a schematic diagram of non-shared antennas and non-periodic distribution of shared antennas according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a common-aperture antenna array composed of non-common antennas and common antennas arranged uniformly according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of another form of antenna array in accordance with an embodiment of the present invention;
wherein the content of the first and second substances,
-a non-shared antenna-11; a first horizontally polarized antenna-111; a first vertically polarized antenna-112;
a common antenna-12; a second horizontally polarized antenna-121; a second vertically polarized antenna-122;
a high-band-pass filter-21;
a duplexer-22; a radio frequency bus interface-221; a low band radio frequency interface-222; a high band radio frequency interface-223;
a high frequency band transceiver module-31;
a low frequency band transceiver module-32;
a metal reflector-40;
a radio frequency connector-50;
a first array of distribution units-6;
the second array is distributed with cells-7.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a dual-band common-aperture antenna system includes a non-shared antenna 11, a shared antenna 12, a high-band bandpass filter 21, a duplexer 22, a high-band transceiver module 31, a low-band transceiver module 32, a metal reflector 40, a radio frequency connector 50, and a radio frequency cable assembly.
The non-shared antenna 11, the shared antenna 12, the high-band-pass filter 21, the duplexer 22, the high-band transceiver module 31, the low-band transceiver module 32, the radio frequency connector 50 and the radio frequency cable assembly are arranged on the metal reflection plate 40.
As shown in fig. 1, one end of the high-band bandpass filter 21 is connected to the non-shared antenna 11 through a radio frequency cable assembly and a radio frequency connector 50, the other end of the high-band bandpass filter 21 is connected to the high-band transceiver module 31, and both the high-band transceiver module 31 and the radio frequency cable assembly are in the prior art.
As shown in fig. 3, one end of the duplexer 22 is provided with a radio frequency main interface 221, and the other end is provided with a low-band radio frequency interface 222 and a high-band radio frequency interface 223; as shown in fig. 2, the rf port 221 of the duplexer 22 is connected to the common antenna 12 through an rf cable assembly and an rf connector 50, the rf connector 50 is a conventional one, the low-band rf interface 222 is connected to the low-band transceiver module 32, the low-band transceiver module 32 is a conventional one, and the high-band rf interface 223 is connected to the high-band transceiver module 31.
The frequency bandwidth of the non-shared antenna 11 at least covers the low frequency band or the high frequency band, and the frequency bandwidth of the shared antenna 12 at least covers the low frequency band and the high frequency band simultaneously; the non-shared antenna 11 and the shared antenna 12 have the same section height; the common antennas 12 are disposed between the non-common antennas 11.
Specifically, as shown in fig. 4, the unshared antenna 11 and the shared antenna 12 are disposed on the metal reflector 40; the rf connector 50 is disposed under the metal reflection plate 40, and an inner conductor of the rf connector 50 passes through the metal reflection plate 40 and is electrically connected to the corresponding non-shared antenna 11 or the shared antenna 12.
The antenna type of the non-shared antenna 11 is one of a printed dipole antenna, a Vivaldi antenna, a spiral antenna or a horn antenna; the antenna type of the common antenna 12 is one of a printed element antenna, a Vivaldi antenna, a helical antenna, or a horn antenna.
The antenna type of the non-shared antenna 11 is the same as that of the shared antenna 12; the non-shared antenna 11 and the shared antenna 12 have the same frequency bandwidth.
As shown in fig. 4, the non-shared antenna 11 includes a first horizontally polarized antenna 111 and/or a first vertically polarized antenna 112; the common antenna 12 comprises a second horizontally polarized antenna 121 and/or a second vertically polarized antenna 122; the non-shared antenna 11 and the shared antenna 12 have at least one polarization that is the same. In this embodiment, the non-shared antenna 11 includes a first horizontally polarized antenna 111 and a first vertically polarized antenna 112; the common antenna 12 includes a second horizontally polarized antenna 121 and a second vertically polarized antenna 122.
With reference to fig. 4-6, the first horizontally polarized antenna 111 and the first vertically polarized antenna 112 are distributed in a T-shape, a cross-shape or an L-shape; the second horizontally polarized antenna 121 and the second vertically polarized antenna 122 are distributed in a T-shape, a cross-shape or an L-shape.
The frequency ratio of the high frequency band and the low frequency band in the system is M; in the common-caliber area, the ratio of the number of the common antennas 12 to the number of the non-common antennas 11 is N; when M is larger than or equal to N +1, the shared antenna 12 is distributed in the non-shared antenna 11 in an array mode.
When M is larger than or equal to N +1, the non-shared antennas 11 and the shared antennas 12 are sequentially and alternately distributed in a linear array along the first direction to form a first array distribution unit 6. For example, when the frequency ratio between the high band and the low band is M2.5 and the ratio between the number of the shared antennas 12 and the number of the unshared antennas 11 is N1, M ≧ N + 1. The non-shared antenna 11 and the shared antenna 12 are alternately arranged on the metal reflector 40 in a regular manner, and for the low-band and high-band antenna systems, the antenna array planes are regularly arranged, so that the low/ultra-low side lobes, namely the state shown in fig. 7, are easily realized in engineering.
Further, the first array distribution unit 6 is linearly distributed along a second direction perpendicular to the first direction, i.e. the state shown in fig. 9, to form a second array distribution unit 7.
Further, as shown in fig. 10, the non-shared antennas 11 are distributed around the second array distribution unit 7 in an array manner along a direction parallel to the edge of the second array distribution unit 7, where the non-shared antennas 11 parallel to the first direction are rows, and the non-shared antennas 11 parallel to the second direction are columns; two sides of the second array distribution unit 7 are respectively provided with a row of unshared antennas 11, and two sides of the second array distribution unit 7 are respectively provided with two columns of unshared antennas 11. Namely, the aperture of the middle high-frequency band antenna array surface of the antenna array surface is larger than the aperture of the low-frequency band antenna array surface, the middle is a low-frequency band and high-frequency band common aperture area, and the antenna array surface is composed of a non-shared antenna 11 and a shared antenna 12, wherein the frequency band covered by the non-shared antenna 11 is the high-frequency band, and the shared antenna 12 covers the low-frequency band and the high-frequency band simultaneously; the array surface edge non-shared aperture is composed of a non-shared antenna 11, and the frequency band is a high frequency band.
When M is less than N +1, the position of the common antenna 12 can be optimized by using an intelligent optimization algorithm, and grating lobe suppression is realized. As shown in fig. 8, when the frequency ratio between the high band and the low band is set to M1.5, and the ratio between the number of the shared antennas 12 and the number of the unshared antennas 11 is set to N1, M < N + 1. For a high frequency band, the antenna array surfaces are regularly arranged, and low/ultra-low side lobes are easy to realize in engineering; however, for a low-frequency antenna, the average unit distance of the array surface is large, grating lobes may occur, in order to reduce the grating lobes, an intelligent optimization algorithm such as a genetic algorithm, a particle swarm algorithm and the like can be adopted, the intelligent optimization algorithm is the prior art, and the grating lobe suppression can be effectively realized by adopting a non-period formed by unit stages or subarray stages, namely, the state shown in fig. 8.
The working principle is as follows:
the antenna system of the present invention has the same profile height. The non-shared antenna and the shared antenna adopt broadband antennas with the same antenna profile height, so that the problem of scanning lobe shielding is avoided; the antenna system of the invention can realize low/ultra-low side lobes. Due to the arrangement rule of the array planes formed by the unshared antenna and the shared antenna, the low/ultra-low side lobe can be realized; the antenna system has the characteristic of light weight. The traditional two sets of antenna array planes share one array plane aperture and correspond to two sets of mutually independent antenna units, but because part of the antenna units of the array planes are shared, the number of the antenna units is reduced, the total weight of the system is reduced, and the method is very critical to the airborne/missile-borne/satellite-borne platform with strict requirements on weight. In addition, the shared antenna also saves the space of the aperture of the antenna array surface, and can be provided with other devices such as a correction line and the like in more space.
In practical engineering application, the non-shared antenna 11 and the shared antenna 12 adopt the same antenna form, have the same frequency bandwidth and section height, and can simplify the antenna type in the array surface and reduce the design difficulty.
The non-shared antenna 11 and the shared antenna 12 are sequentially and alternately distributed along a linear array in the first direction, for low-frequency band and high-frequency band antenna systems, antenna array surfaces all belong to a regular array, and low/ultra-low side lobes are easily realized in engineering.
The aperture of the middle high-frequency band antenna array surface of the antenna array surface is larger than the aperture of the low-frequency band antenna array surface, the middle is a low-frequency band and high-frequency band shared aperture area, and the antenna array surface consists of a non-shared antenna 11 and a shared antenna 12, wherein the frequency band covered by the non-shared antenna 11 is a high-frequency band, and the shared antenna 12 covers the low-frequency band and the high-frequency band simultaneously; the array surface edge non-shared aperture is composed of a non-shared antenna 11, and the frequency band is a high frequency band.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A dual-band common aperture antenna system, comprising: the antenna comprises a metal reflecting plate (40), wherein a non-shared antenna (11), a shared antenna (12), a high-band-pass filter (21), a duplexer (22), a high-band transceiver module (31), a low-band transceiver module (32), a radio frequency connector (50) and a radio frequency cable assembly are arranged on the metal reflecting plate (40);
one end of the high-frequency band-pass filter (21) is connected with the unshared antenna (11) through a radio frequency cable assembly and a radio frequency connector (50), and the other end of the high-frequency band-pass filter (21) is connected with the high-frequency band transceiver module (31);
one end of the duplexer (22) is provided with a radio frequency main interface (221), and the other end is provided with a low-frequency-band radio frequency interface (222) and a high-frequency-band radio frequency interface (223);
a radio frequency main port (221) of the duplexer (22) is connected with a common antenna (12) through a radio frequency cable assembly and a radio frequency connector (50), a low-frequency band radio frequency interface (222) is connected with a low-frequency band transceiver module (32), and a high-frequency band radio frequency interface (223) is connected with a high-frequency band transceiver module (31);
the frequency bandwidth of the unshared antenna (11) at least covers a low frequency band or a high frequency band, and the frequency bandwidth of the shared antenna (12) at least covers the low frequency band and the high frequency band simultaneously;
the unshared antenna (11) and the shared antenna (12) have the same section height;
the shared antenna (12) is arranged between the unshared antennas (11) in an inserting mode.
2. The dual band common aperture antenna system of claim 1, wherein: the unshared antenna (11) and the shared antenna (12) are arranged on the metal reflecting plate (40);
the radio frequency connector (50) is arranged below the metal reflecting plate (40), and an inner conductor of the radio frequency connector (50) penetrates through the metal reflecting plate (40) and is electrically connected with the corresponding unshared antenna (11) or the shared antenna (12).
3. The dual band common aperture antenna system of claim 1, wherein: the antenna type of the unshared antenna (11) is one of a printed element antenna, a Vivaldi antenna, a spiral antenna or a horn antenna;
the antenna type of the common antenna (12) is one of a printed element antenna, a Vivaldi antenna, a spiral antenna or a horn antenna.
4. The dual band common aperture antenna system according to any one of claims 1 to 3, wherein: the non-shared antenna (11) is of the same antenna type as the shared antenna (12);
the unshared antenna (11) has the same frequency bandwidth as the shared antenna (12).
5. The dual band common aperture antenna system of claim 1, wherein: the unshared antenna (11) comprises a first horizontally polarized antenna (111) and/or a first vertically polarized antenna (112);
the common antenna (12) comprises a second horizontally polarized antenna (121) and/or a second vertically polarized antenna (122);
the unshared antenna (11) and the shared antenna (12) have at least one polarization which is the same.
6. The dual band common aperture antenna system of claim 5, wherein: the first horizontally polarized antenna (111) and the first vertically polarized antenna (112) are distributed in a T shape, a cross shape or an L shape;
the second horizontally polarized antenna (121) and the second vertically polarized antenna (122) are distributed in a T shape, a cross shape or an L shape.
7. The dual band common aperture antenna system of claim 1, wherein: the frequency ratio of the high frequency band and the low frequency band in the system is M;
in the common-caliber area, the ratio of the number of the common antennas (12) to the number of the non-common antennas (11) is N;
when M is larger than or equal to N +1, the shared antenna (12) array is distributed in the unshared antenna (11).
8. The dual band common aperture antenna system of claim 7, wherein: when M is larger than or equal to N +1, the unshared antennas (11) and the shared antennas (12) are sequentially and alternately distributed in a linear array along the first direction to form a first array distribution unit (6).
9. The dual band common aperture antenna system of claim 8, wherein: the first array distribution units (6) are linearly distributed in an array along a second direction to form second array distribution units (7), and the second direction is perpendicular to the first direction.
10. The dual band common aperture antenna system of claim 9, wherein: the periphery of the second array distribution unit (7) is provided with non-shared antennas (11) in an array distribution along the direction parallel to the edge of the second array distribution unit (7), wherein the non-shared antennas (11) parallel to the first direction are rows, and the non-shared antennas (11) parallel to the second direction are columns;
two sides of the second array distribution unit (7) are respectively provided with a row of non-shared antennas (11), and two sides of the second array distribution unit (7) are respectively provided with two columns of non-shared antennas (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111129578.3A CN113871889B (en) | 2021-09-26 | 2021-09-26 | Dual-band common-caliber antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111129578.3A CN113871889B (en) | 2021-09-26 | 2021-09-26 | Dual-band common-caliber antenna system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113871889A true CN113871889A (en) | 2021-12-31 |
| CN113871889B CN113871889B (en) | 2024-04-19 |
Family
ID=78994629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111129578.3A Active CN113871889B (en) | 2021-09-26 | 2021-09-26 | Dual-band common-caliber antenna system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113871889B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762425A (en) * | 2013-11-04 | 2014-04-30 | 航天恒星科技有限公司 | Double-frequency double-circular polarization common-caliber antenna array for two-dimensional phase control scanning |
| WO2016172957A1 (en) * | 2015-04-30 | 2016-11-03 | 华为技术有限公司 | Dual-frequency co-aperture array antenna and communications device |
| CN106099395A (en) * | 2016-08-11 | 2016-11-09 | 成都雷电微力科技有限公司 | A kind of multifrequency Shared aperture is combined phased array antenna structure |
| CN113193386A (en) * | 2021-04-29 | 2021-07-30 | 中国电子科技集团公司第三十八研究所 | High-gain dual-band circularly polarized duplex antenna unit |
-
2021
- 2021-09-26 CN CN202111129578.3A patent/CN113871889B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762425A (en) * | 2013-11-04 | 2014-04-30 | 航天恒星科技有限公司 | Double-frequency double-circular polarization common-caliber antenna array for two-dimensional phase control scanning |
| WO2016172957A1 (en) * | 2015-04-30 | 2016-11-03 | 华为技术有限公司 | Dual-frequency co-aperture array antenna and communications device |
| CN106099395A (en) * | 2016-08-11 | 2016-11-09 | 成都雷电微力科技有限公司 | A kind of multifrequency Shared aperture is combined phased array antenna structure |
| CN113193386A (en) * | 2021-04-29 | 2021-07-30 | 中国电子科技集团公司第三十八研究所 | High-gain dual-band circularly polarized duplex antenna unit |
Non-Patent Citations (5)
| Title |
|---|
| LIN GUO: "Design of a Broadband Dual Circularly Polarized Septum Antenna", 《2020 INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY (ICMMT)》, 30 March 2021 (2021-03-30) * |
| 张玉梅;张立新;李磊;: "双频段双极化共孔径阵列馈源反射面天线设计", 雷达科学与技术, no. 06, 15 December 2014 (2014-12-15) * |
| 方刚;张玉梅;: "双频段双极化星载降水测量雷达天线设计", 电子与信息学报, no. 08, 24 June 2016 (2016-06-24) * |
| 朱艳玲;刘琳琳;张福顺;焦永昌;: "新型共口径双频双圆极化微带天线设计", 微波学报, no. 06, 15 December 2007 (2007-12-15) * |
| 郭琳: "一种宽波束相控阵天线单元", 《雷达科学与技术》, 15 April 2007 (2007-04-15) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113871889B (en) | 2024-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102063222B1 (en) | Apparatus and method for reducing mutual coupling in an antenna array | |
| CN111883910B (en) | Dual-polarized low-profile magnetoelectric dipole antenna and wireless communication equipment | |
| CN114156659B (en) | Broadband common-caliber dipole array of Sub-6GHz and millimeter wave frequency bands | |
| CN110265795B (en) | Multi-frequency narrow beam antenna | |
| CN114156627B (en) | Ultra-wideband low-profile low-scattering curved phased array antenna | |
| US20210320409A1 (en) | Multi-Band Antenna Structure | |
| US10177459B2 (en) | Dual-band modular active antenna | |
| CN110783704A (en) | Dual-via-hole probe feed integrated substrate gap waveguide circularly polarized antenna | |
| CN114883785B (en) | Thin dual-polarization ultra-wide bandwidth angle scanning array antenna | |
| CN113937465B (en) | Dual-polarized electromagnetic transparent antenna and method for realizing dual-frequency scattering suppression | |
| CN114243267A (en) | Ka-band broadband dual-circularly-polarized antenna unit and array based on ridge waveguide | |
| CN113764871A (en) | Low-profile dual-band dual-polarization common-caliber conformal phased array antenna | |
| US8866686B1 (en) | Methods and apparatus for super-element phased array radiator | |
| EP4231455A1 (en) | Broad band directional antenna | |
| CN113871889B (en) | Dual-band common-caliber antenna system | |
| CN115207613B (en) | Broadband dual-polarized antenna unit and antenna array | |
| CN111244634A (en) | Bottom-fed broadband wide-beam dual-port millimeter wave digital coding antenna | |
| WO2008046730A1 (en) | Decoupling arrays of radiating elements of an antenna | |
| CN112054289B (en) | Electronic device | |
| CN218586330U (en) | Conformal missile-borne antenna based on mirror image principle | |
| US20230369760A1 (en) | Multi-band, shared-aperture, circularly polarized phased array antenna | |
| CN214477926U (en) | Array antenna and waveguide conversion device | |
| CN117498045B (en) | High-gain high-isolation filter antenna for informatization management and array thereof | |
| CN116613547B (en) | Dual-frequency common-aperture antenna with high aperture multiplexing rate and high port isolation | |
| CN212062682U (en) | Microstrip antenna |
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 |