CN108288764B - Ku/Ka switching dual-band feed source network - Google Patents
Ku/Ka switching dual-band feed source network Download PDFInfo
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- CN108288764B CN108288764B CN201810271523.8A CN201810271523A CN108288764B CN 108288764 B CN108288764 B CN 108288764B CN 201810271523 A CN201810271523 A CN 201810271523A CN 108288764 B CN108288764 B CN 108288764B
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- 230000010287 polarization Effects 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000005388 cross polarization Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation 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
- H01Q5/30—Arrangements for providing operation on different wavebands
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a Ku/Ka switching dual-band feed source network, which comprises a Ku/Ka frequency band switching microwave network, a Ku frequency band polarization rotating mechanism, two Ka frequency band filters and a fixed platform, wherein two Ka feed line ports reserved on the fixed platform are communicated with the two Ka frequency band filters through waveguide feed lines in a one-to-one correspondence mode, ku feed line ports reserved on the fixed platform are communicated with the Ku frequency band polarization rotating mechanism, the Ku/Ka frequency band switching microwave network is movably arranged on the fixed platform and is a rotor block used for freely rotating to conduct port switching, a Ku frequency band signal channel and a Ka frequency band signal channel penetrating through the block are arranged in the rotor block in parallel, the Ka frequency band signal channel is communicated with a phase shifter, and an output port of the rotary rotor block switched to the phase shifter is communicated with the Ka feed line ports or an output port of the Ku frequency band signal channel switched to the Ku feed line port through the rotary rotor block.
Description
Technical Field
The invention relates to a Ku/Ka switching dual-band feed source network in the fields of antennas in various forms of wireless microwave satellite communication or antennas in electronic detection signals and the like, which is a Ku/Ka dual-band feed source network working in a time-sharing mode, is particularly suitable for antennas with compact and miniaturized structure, high requirements on electrical performance and the like, and is particularly suitable for vehicle-mounted antennas, ship-mounted antennas, airborne antennas and the like.
Background
In recent years, with the rapid development of wireless communication technology, the application is more and more extensive, the existing frequency band resources can not meet the demands, the development of resources in higher frequency bands is imperative, and with the transformation of satellite antenna carriers from the ground to carriers such as vehicles, ships, and airborne vehicles.
At present, the satellite application of the Ku frequency band is very wide, the satellite of the Ka frequency band also gradually enters a practical stage, a miniaturized satellite communication antenna shared by the Ku/Ka dual-frequency band can be designed, the Ku/Ka dual-frequency band feed source network is used as a core component of a satellite communication antenna system, the high-performance electrical characteristics are required to be provided, the high-performance electrical characteristics comprise voltage standing wave ratio, receiving-transmitting isolation, cross polarization isolation, pattern equalization, circular polarization axial ratio and the like of each waveguide port, and meanwhile, the structure is required to be simple and compact, so that the high-performance satellite communication antenna has a wide application prospect.
The Ku/Ka dual-band compact corrugated horn effectively shares a main reflector and a secondary reflector, the antenna selectively works in a Ku frequency band or a Ka frequency band mode in a time-sharing mode, the function of Ku/Ka dual-band receiving and transmitting sharing is achieved, and the problem of interference between antenna signals can be solved through receiving and transmitting isolation and cross polarization isolation, so that the utilization rate of the antenna is doubled.
Disclosure of Invention
The invention aims to overcome the defects that most of structures of Ku/Ka dual-frequency feed sources in the prior art are coaxial structures, ka frequency band signal transmission depends on a medium rod, electric performance is limited by material characteristics and machining dimensional accuracy of the medium rod, linear polarization cannot be adjusted by Ku frequency band signals, polarization tracking requirements cannot be met and the like. The Ku/Ka feed source network has good frequency band isolation, axial ratio, cross polarization isolation, standing wave ratio, radiation characteristics and other electrical properties.
The technical scheme provided is as follows:
there is provided a Ku/Ka switched dual band feed network comprising a Ku/Ka band switched microwave network 2, a Ku band polarization rotation mechanism 3, two Ka band filters 4 and a fixed platform,
the two Ka frequency band filters 4 and the Ku frequency band polarization rotating mechanism 3 are arranged below a fixed platform, two Ka feeder ports reserved on the fixed platform are communicated with the two Ka frequency band filters 4 through waveguide feeder lines in one-to-one correspondence, and Ku feeder ports reserved on the fixed platform are communicated with the Ku frequency band polarization rotating mechanism;
the Ku/Ka frequency band switching microwave network 2 is movably arranged on a fixed platform, the Ku/Ka frequency band switching microwave network 2 is a rotor block for free rotation to carry out port switching, a Ku frequency band signal channel penetrating through a block body and a Ka frequency band signal channel are arranged in the rotor block in parallel, the Ka frequency band signal channel is communicated with a phase shifter, an output port of the phase shifter is communicated with a Ka feeder port when the rotor block is switched to, or an output port of the Ku frequency band signal channel is communicated with a Ku feeder port when the rotor block is switched to.
Further, the phase shifter is a baffle phase shifter, the phase shifter extends out of two output channels, and the two output channels are communicated with the ka feeder line port in a one-to-one correspondence mode.
Further, the Ka band filter 4 is a three-port one-to-two filter.
Further, the ku feeder port is located between two ka feeder ports.
Further, the rotary shaft is fixedly connected with the rotor, the rocker arm is fixedly connected with the rotary shaft, and a deflector rod 2-4-2 is vertically fixed at one end of the rocker arm.
Further, the device also comprises a cover cylinder 2-1, wherein the cover cylinder is assembled on the fixed platform, a public port is reserved on the cover cylinder, a horn feed source is assembled outside the public port of the cover cylinder, and the rotary rotor block is switched to the public port of the Ku frequency band signal channel to be communicated or the rotary rotor block is switched to the ka frequency band signal channel to be communicated with the public port.
Further, the Ku frequency band polarization rotating mechanism comprises a rotating mechanism for adjusting signal polarization matching and a rotating joint 5-3 for transmitting signals, wherein the rotating mechanism comprises a central waveguide 5-1 serving as a rotor and a fixed cylinder 5-2 serving as a stator, and the central waveguide is movably arranged in an inner cavity of the fixed cylinder;
the side wall of the central waveguide is fixedly connected with a rotor matching block, the inner wall of the fixed cylinder is fixedly connected with a stator matching block, a side waveguide channel 5-7 which extends in a ring shape along the outer Zhou Chengyuan of the central waveguide is sealed between the rotor matching block and the stator matching block, two ends of the side waveguide channel are respectively communicated with a signal input coupling port 5-4 reserved on the central waveguide and a signal receiving and transmitting side port 5-5 reserved on the fixed cylinder, and the polarization angle of the side waveguide channel is changed by changing the angle between the rotor matching block and the stator matching block;
the top end of the central waveguide is reserved with a common port, and a straight port at the bottom end of the central waveguide is communicated with a waveguide port of the rotary joint.
Further, the outer wall of the central waveguide is provided with a waveguide groove body, one end of the waveguide groove body is provided with a rotor matching block 5-6, the other end of the waveguide groove body is provided with a stator matching block, the stator seals the top surface of the waveguide groove body, the stator matching block and the rotor matching block seal the two ends of the waveguide groove body to form a side waveguide channel, an input coupling port is opposite to the rotor matching block, and a signal receiving and transmitting side end is opposite to the stator matching block.
Further, the rotor matching block is a lug with a step boss, the step boss of the rotor matching block is opposite to the input coupling port, the stator matching block is a lug with a step boss, and the step boss of the stator matching block is opposite to the side port.
The purpose of the invention is realized in the following way:
compared with the background technology, the invention has the following advantages:
1. the feed source adopts the mode of the common-nozzle corrugated horn, the processing technology is mature, the feed source is not influenced by dielectric materials, and the processing precision can be ensured by machining, and the electrical performance is good.
2. The invention adopts a time-sharing working mode, and the alternating replacement between the two frequency bands Ku/Ka is carried out in a reciprocating rotation switching mode, so that the performance is reliable and stable, and the automatic regulation and control can be realized after the motor is integrated.
3. The invention solves the problem that the linear polarization adjustment and tracking functions cannot be realized through the Ku frequency band polarization rotating mechanism, and realizes the capacity of linear polarization matching of the Ku receiving and transmitting frequency band.
4. The invention is arranged on an antenna, not only realizes excellent axial ratio performance of the Ka frequency band, but also realizes the functions of adjusting and tracking linear polarization signals of the Ku frequency band, and both the Ku/Ka frequency bands have excellent performances of high gain, low side lobe, low cross polarization, low voltage standing wave ratio and the like.
5. The invention adopts a modularized assembly mode, and has simple and compact structure size.
Drawings
Fig. 1 is an overall construction diagram of the present invention.
Fig. 2 is an isometric view of the present invention.
Fig. 3 is a side view of the rotary mechanism of the present invention.
Fig. 4 is a cross-sectional structural view of the rotary mechanism of the present invention.
Fig. 5 is a cross-sectional structural view of the rotary mechanism of the present invention.
Fig. 6 is a structure diagram of a switch of the Ku/Ka band switching microwave network of the present invention.
Reference numerals illustrate: the device comprises a horn feed source 1, a Ku/Ka frequency band switching microwave network 2, a Ku frequency band polarization rotating mechanism 3, a Ka frequency band filter 4, a rotating rocker arm 2-4-1, a deflector rod 2-4-2, a central waveguide 5-1, a fixed cylinder 5-2, a rotating joint 5-3, a signal input coupling port 5-4, a signal receiving and transmitting side port 5-5, a rotor matching block 5-6 and a side waveguide channel 5-7;
Detailed Description
The present invention will be further described with reference to fig. 1 to 6.
As shown in the figure, the Ku/Ka switching dual-band feed source network consists of a Ku/Ka dual-band feed source 1, a Ku/Ka frequency band switching microwave network 2, a Ku frequency band polarization rotating mechanism 3, two Ka frequency band filters 4 and a Ka frequency band waveguide feed line 5, wherein the Ku/Ka switching dual-band feed source network is provided with six waveguide ports and a radiation port, two Ka feed line ports and one Ku feed line port reserved on a fixed platform are reserved, the Ku feed line port is positioned between the two Ka feed line ports, the two Ka frequency band filters 4 and the Ku frequency band polarization rotating mechanism 3 are arranged below the fixed platform, the Ku/Ka frequency band switching microwave network 2 is movably arranged on the fixed platform, the Ku/Ka frequency band switching microwave network 2 is a rotor block for free rotation port switching, the fixed platform is connected to a rotating shaft through a bearing, the rotating shaft is fixedly connected with the rotor block, the rocker arm is fixedly connected with the rotating shaft, one end of the rocker arm is vertically fixed with a deflector rod 2-4-2, the rocker arm is driven to swing by the deflector rod so as to drive the rotor block to rotate, the position of the fixed platform is fixed, a Ku frequency band signal channel and a Ka frequency band signal channel which penetrate through the block are arranged in the rotor block, the Ka frequency band signal channel is connected with a phase shifter, the phase shifter is provided with an inverted Y-shaped channel, the phase shifter is also arranged in the rotor block, the phase shifter is a baffle phase shifter, two output channels extend out, the two output channels are correspondingly connected with the Ka feeder port one by one, in the process of rotating the rotor block, the output ports of the phase shifter can be switched to be connected with the Ka feeder port at will or the output ports of the Ku frequency band signal channel are switched to be connected with the Ku feeder port by rotating the rotor block, the Ku feeder line port reserved on the fixed platform is communicated with the Ku frequency band polarization rotation mechanism; two Ka feeder ports reserved on the fixed platform are communicated with two Ka frequency band filters 4 through waveguide feeder lines in one-to-one correspondence.
The Ka frequency band filter 4 is a three-port one-to-two filter.
The cover cylinder is fixedly assembled on the fixed platform, a public port is reserved on the cover cylinder, a horn feed source is assembled outside the public port of the cover cylinder, and the rotary rotor block is switched to the public port of the Ku frequency band signal channel to be communicated or the rotary rotor block is switched to the ka frequency band signal channel to be communicated with the public port.
The Ku/Ka switching dual-band feed source network adopts a time-sharing working mode, namely, the Ku frequency band is selected or the Ka frequency band is selected to be converted by shifting a switching device, the Ku frequency band is linearly polarized, the Ka frequency band is circularly polarized, the linear polarization surface adjusting function of the Ku frequency band is realized through a Ku frequency band polarization rotating mechanism, and the whole Ku/Ka switching dual-band feed source network is simple and compact in structure.
As shown in fig. 3-6, the Ku frequency band polarization rotating mechanism comprises a rotating mechanism for adjusting signal polarization matching and a rotating joint 5-3 for transmitting signals, the rotating mechanism comprises a central waveguide 5-1 serving as a rotor and a fixed cylinder 5-2 serving as a stator, the central waveguide is movably assembled in an inner cavity of the fixed cylinder, a rotor matching block is fixedly connected to the side wall of the central waveguide, a stator matching block is fixedly connected to the inner wall of the fixed cylinder, a side waveguide channel 5-7 extending along the outer Zhou Chengyuan ring shape of the central waveguide is sealed between the rotor matching block and the stator matching block, two ends of the side waveguide channel are respectively communicated with a signal input coupling port 5-4 reserved on the central waveguide and a signal receiving and transmitting side port 5-5 reserved on the fixed cylinder, a common port is reserved at the top end of the central waveguide by changing the polarization angle between the rotor matching block and the stator matching block, and a straight port at the bottom end of the central waveguide is communicated with a waveguide port of the rotating joint.
The outer wall of the central waveguide is provided with a waveguide groove body, one end of the waveguide groove body is provided with a rotor matching block 5-6, the other end of the waveguide groove body is provided with a stator matching block, the stator is used for sealing the top surface of the waveguide groove body, the stator matching block and the rotor matching block are used for sealing two ends of the waveguide groove body to form a side waveguide channel, an input coupling port is opposite to the rotor matching block, and a signal receiving and transmitting side end is opposite to the stator matching block.
The rotor matching block is a lug with a step lug boss, the step lug boss of the rotor matching block is opposite to the input coupling port, the stator matching block is a lug with a step lug boss, and the step lug boss of the stator matching block is opposite to the side port.
The working frequency range of the Ku/Ka dual-band feed source is Ku frequency band coverage transceiving frequency and Ka frequency band coverage transceiving frequency.
The foregoing is merely illustrative of preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that would be easily recognized by those skilled in the art within the scope of the present invention are intended to be included in the scope of the present invention.
What is not described in detail in the present specification belongs to the known technology of those skilled in the art.
The embodiment of the invention designs and manufactures a set of Ku/Ka switching dual-band feed source network applied to a 0.9 m antenna. The actual measurement result shows that the receiving frequency of the feed source network in the Ka frequency band is 19.6-21.2 GHz, the transmitting frequency is 29.4-31 GHz, the receiving and transmitting axial ratio of the Ka frequency band is less than 1dB, the receiving frequency in the Ku frequency band is 12.25-12.75 GHz, the transmitting frequency is 14-14.5 GHz, the cross polarization isolation of the Ku receiving and transmitting frequency band is less than-35 dB, the radiation pattern is rotationally symmetrical, the first side lobe of the antenna in the Ku/Ka dual frequency band is less than-14 dB, the voltage standing wave ratio is less than 1.3 and other electrical performances are good, and the good index requirements are met.
Claims (7)
1. The Ku/Ka switching dual-band feed source network is characterized in that: comprises a Ku/Ka frequency band switching microwave network (2), a Ku frequency band polarization rotation mechanism (3), two Ka frequency band filters (4) and a fixed platform (6),
the two Ka frequency band filters (4) and the Ku frequency band polarization rotating mechanism (3) are arranged below a fixed platform, two Ka feeder ports reserved on the fixed platform are communicated with the two Ka frequency band filters (4) through waveguide feeder lines in one-to-one correspondence, ku feeder ports reserved on the fixed platform are communicated with the Ku frequency band polarization rotating mechanism, and the Ku feeder ports are positioned between the two Ka feeder ports;
the Ku/Ka frequency band switching microwave network (2) is movably arranged on a fixed platform, the Ku/Ka frequency band switching microwave network (2) is a rotor block used for carrying out port switching in a free rotation mode, a Ku frequency band signal channel and a Ka frequency band signal channel which penetrate through a block body are arranged in the rotor block in parallel, the Ka frequency band signal channel is communicated with a phase shifter, an output port of the rotary rotor block is communicated with the Ka feeder port or an output port of the Ku frequency band signal channel is communicated with the Ku feeder port through the rotary rotor block, the phase shifter is a baffle phase shifter, two output channels extend out of the phase shifter, and the two output channels are communicated with the Ka feeder port in a one-to-one correspondence mode.
2. The Ku/Ka switched dual band feed network of claim 1, wherein: the Ka frequency band filter (4) is a three-port one-to-two filter.
3. The Ku/Ka switched dual band feed network of claim 1, wherein: the rotary shaft is fixedly connected with the rotor, the rocker arm is fixedly connected with the rotary shaft, and a deflector rod (2-4-2) is vertically fixed at one end of the rocker arm.
4. The Ku/Ka switched dual band feed network of claim 1, wherein: the rotary rotor block is switched to the public port of the Ku frequency band signal channel to be communicated or is switched to the ka frequency band signal channel to be communicated with the public port.
5. The Ku/Ka switched dual band feed network of claim 1, wherein: the Ku frequency band polarization rotating mechanism comprises a rotating mechanism for adjusting signal polarization matching and a rotating joint (5-3) for transmitting signals, wherein the rotating mechanism comprises a central waveguide (5-1) serving as a rotor and a fixed cylinder (5-2) serving as a stator, and the central waveguide is movably arranged in an inner cavity of the fixed cylinder;
a rotor matching block is fixedly connected to the side wall of the central waveguide, a stator matching block is fixedly connected to the inner wall of the fixed cylinder, a side waveguide channel (5-7) extending in a ring shape along the outer Zhou Chengyuan of the central waveguide is sealed between the rotor matching block and the stator matching block, two ends of the side waveguide channel are respectively communicated with a signal input coupling port (5-4) reserved on the central waveguide and a signal receiving and transmitting side port (5-5) reserved on the fixed cylinder, and the polarization angle of the side waveguide channel is changed by changing the angle between the rotor matching block and the stator matching block;
the top end of the central waveguide is reserved with a common port, and a straight port at the bottom end of the central waveguide is communicated with a waveguide port of the rotary joint.
6. The Ku/Ka-switched dual-band feed network of claim 5, wherein:
the outer wall of the central waveguide is provided with a waveguide groove body, one end of the waveguide groove body is provided with a rotor matching block (5-6), the other end of the waveguide groove body is provided with a stator matching block, the stator is used for sealing the top surface of the waveguide groove body, the stator matching block and the rotor matching block are used for sealing two ends of the waveguide groove body to form a side waveguide channel, an input coupling port is opposite to the rotor matching block, and a signal receiving and transmitting side end is opposite to the stator matching block.
7. The Ku/Ka-switched dual-band feed network of claim 6, wherein: the rotor matching block is a lug with a step lug boss, the step lug boss of the rotor matching block is opposite to the input coupling port, the stator matching block is a lug with a step lug boss, and the step lug boss of the stator matching block is opposite to the side port.
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| CN201810271523.8A CN108288764B (en) | 2018-03-29 | 2018-03-29 | Ku/Ka switching dual-band feed source network |
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| CN201810271523.8A CN108288764B (en) | 2018-03-29 | 2018-03-29 | Ku/Ka switching dual-band feed source network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110534916A (en) * | 2019-10-11 | 2019-12-03 | 华讯方舟科技有限公司 | Polarize feed source device and satellite antenna device |
| CN111600119B (en) * | 2020-05-28 | 2022-07-05 | 无锡华信雷达工程有限责任公司 | Ku/Ka ultra-wide double-frequency composite feed network system |
| WO2022161630A1 (en) | 2021-01-29 | 2022-08-04 | Ovzon Sweden Ab | Dual-band radio terminal and filter structure |
| CN114361809A (en) * | 2021-12-31 | 2022-04-15 | 苏州阿清智能科技有限公司 | Ku and ka dual-frequency receiving and transmitting assembly fast switching device |
| CN116192232A (en) * | 2023-02-17 | 2023-05-30 | 陕西兴际通通信有限公司 | Ka, ku automatic portable station conversion feed source communication system |
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| CN203871473U (en) * | 2014-05-12 | 2014-10-08 | 北京航天控制仪器研究所 | Dual-mode antenna feed source for mobile carrier satellite communication system |
| CN105470649A (en) * | 2015-12-21 | 2016-04-06 | 中国电子科技集团公司第五十四研究所 | Ku/Ka dual-band time multiplexing feed source network |
| CN105896088A (en) * | 2016-04-11 | 2016-08-24 | 湖南航天环宇通信科技股份有限公司 | Ku/Ka dual-band transmitting-receiving community antenna feed source assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101444659B1 (en) * | 2013-10-04 | 2014-09-24 | 국방과학연구소 | ANTENNA SYSTEM FOR simultaneous Triple-band Satellite Communication |
| US10326213B2 (en) * | 2015-12-17 | 2019-06-18 | Viasat, Inc. | Multi-band antenna for communication with multiple co-located satellites |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203871473U (en) * | 2014-05-12 | 2014-10-08 | 北京航天控制仪器研究所 | Dual-mode antenna feed source for mobile carrier satellite communication system |
| CN105470649A (en) * | 2015-12-21 | 2016-04-06 | 中国电子科技集团公司第五十四研究所 | Ku/Ka dual-band time multiplexing feed source network |
| CN105896088A (en) * | 2016-04-11 | 2016-08-24 | 湖南航天环宇通信科技股份有限公司 | Ku/Ka dual-band transmitting-receiving community antenna feed source assembly |
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