CN109193138A - A kind of satellite-borne data transmission antenna - Google Patents
A kind of satellite-borne data transmission antenna Download PDFInfo
- Publication number
- CN109193138A CN109193138A CN201811296061.1A CN201811296061A CN109193138A CN 109193138 A CN109193138 A CN 109193138A CN 201811296061 A CN201811296061 A CN 201811296061A CN 109193138 A CN109193138 A CN 109193138A
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- CN
- China
- Prior art keywords
- feed
- fitting
- circular waveguide
- reflecting surface
- circular
- Prior art date
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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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/288—Satellite antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
-
- 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
-
- 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
Abstract
The invention discloses a kind of satellite-borne data transmission antennas, belong to antenna technical field.It includes reflecting surface, feed, circular waveguide, circular polarizer and feed source bracket；Reflecting surface includes honeycomb aluminium interlayer and forward and backward carbon fiber skin, and the center of honeycomb aluminium interlayer is equipped with connection built-in fitting, and the front end of circular waveguide has pile tooth；Feed is the shell structure with groove and protrusion, groove and the alternate setting of protrusion；Circular waveguide and circular polarizer pass through connection built-in fitting and are fixedly connected with reflecting surface, and feed source bracket is connect with feed and circular waveguide respectively.This antenna is provided with the connection built-in fitting of titanium alloy at the center of reflecting surface, utilize connection built-in fitting, antenna reflective face and pedestal, circular polarizer and circular waveguide are connected as an entirety, realize the combination of electrical component and structure function part, reduce assembling link, electrical loss is reduced, solves the problems, such as that antenna weights are mutually restricted with stiffness by itself intensity, is a kind of important improvement to the prior art.
Description
Technical field
The present invention relates to antenna technical fields, particularly relate to a kind of satellite-borne data transmission antenna, with can be used for star the number between star
According to transmission.
Background technique
With the development of aerospace industry, the demand to satellite-borne data transmission antenna is increasing.Meanwhile satellite antenna is to its own
Electric property, structure type, material technology, weight and size, reliability etc. there is relatively stringent requirement.Satellite antenna
It not only needs to meet the requirement of weight and size index, also to adapt to the impact vibration environment of launching phase, and adapt to the electricity in space
Test from environment such as radiation, vacuum, high/low temperature repeats.
Existing satellite-borne data transmission antenna, often through different mentalities of designing is taken, to meet wanting for space use environment
It asks.But satellite antenna is still in the prevalence of following design difficulty:
1, the mutual restriction of antenna weights and self structure stiffness and strength；
2, occlusion issue of the feed supporting element to feed wave beam；
3, the positioning accuracy problem of the feed phase heart and reflecting surface focus.
Summary of the invention
It is simple with structure, light-weight, stiffness and strength is high in view of this, the present invention proposes a kind of satellite-borne data transmission antenna
The characteristics of, the electric property of antenna can be enhanced.
Based on above-mentioned purpose, present invention provide the technical scheme that
A kind of satellite-borne data transmission antenna, including reflecting surface, feed, circular waveguide, circular polarizer and feed source bracket；The reflecting surface includes
Honeycomb aluminium interlayer and forward and backward carbon fiber skin set on honeycomb aluminium interlayer two sides, outside the edge side of the honeycomb aluminium interlayer
Dew, the center of the honeycomb aluminium interlayer are equipped with connection built-in fitting, and the front end of the circular waveguide has pile tooth；The feed be with
The shell structure of groove and protrusion, the groove of feed one side constitutes the protrusion of feed another side just, the one of face reflecting surface
On face, the groove and protrusion include the tapered protrusion for being located at feed center and the annular groove and ring concentric with tapered protrusion
Shape protrusion, the groove and the alternate setting of protrusion；The circular waveguide and circular polarizer pass through the connection built-in fitting with it is described
Reflecting surface is fixedly connected, and the feed source bracket is connect with the feed and circular waveguide respectively, and makes the phase heart and reflecting surface of feed
Focus coincide.
Optionally, the feed source bracket includes preceding fixed ring, rear fixed ring and for connecting preceding fixed ring and rear fixed
The connecting edge of ring has annular convex platform on the outer wall of the circular waveguide, and the rear Fixing shrink ring of the feed source bracket is in the round wave
It leads, and is fixedly connected by screw with the annular convex platform, the preceding fixed ring of the feed source bracket passes through screw and the feedback
The ring edge in source is fixedly connected.
Optionally, the edge of the honeycomb aluminium interlayer is equipped with riveting built-in fitting, and the forward and backward carbon fiber skin is by wearing
The rivet for crossing riveting built-in fitting is fixed on the front and back sides of honeycomb aluminium interlayer.
Optionally, the connection built-in fitting is ring structure, has screw hole, the company in the disk of the connection built-in fitting
Connect the snap-gauge having on the lateral wall of built-in fitting for being embedded in the honeycomb aluminium interlayer, the rear end of the circular waveguide and entelechy
The front end for changing device all has attachment base, has screw hole, central circular hole of the circular waveguide from connection built-in fitting on the attachment base
It passes through, the attachment base of the attachment base of the circular waveguide and the circular polarizer is successively pressed in the connection built-in fitting from rear portion
In disk, it is fixedly connected between circular waveguide, circular polarizer and connection built-in fitting by the screw through three's screw hole.
Optionally, the connection built-in fitting and feed source bracket are titanium alloy material, and the surface of the circular waveguide, which has, leads
Electro-oxidation processes process layer.
From narration above as can be seen that the beneficial effect of technical solution of the present invention is:
1, the present invention uses main structure of the honeycomb aluminium interlayer as reflecting surface, has the characteristics that light-weight, stiffness and strength is high；Honeycomb
The edge side open of aluminium interlayer is conducive to the air being discharged in interlayer in vacuum of space environment, prevents air in interlayer from rising
Broken covering；In addition, honeycomb aluminum also has the characteristics that thermal expansion coefficient is low, it is adapted to the building ring of high/low temperature alternation in space
Border guarantees the reflection precision of reflecting surface.
2, the circular waveguide front end in the present invention has pile tooth, and feed is the shell structure with groove and protrusion, is passed through
The height of pile tooth and the depth/height and gap of gap and groove/land are adjusted, it can be with the field strength distribution of modulated electromagnetic wave
With dimensional energy distribution rule, electromagnetic wave is improved in the distribution performance of primary reflection surface, enhances gain and the cross polarization electricity of antenna
Gas index.
3, further, the present invention is in the edge of honeycomb aluminium interlayer setting riveting built-in fitting, by rivet by carbon fiber
Covering is fixed on the front and back sides of honeycomb aluminium interlayer, has the advantages that structure is simple, fixation.
4, further, feed source bracket of the invention includes the connecting edge between two fixed rings and two fixed rings,
This light structure and it is penetrating, reduce feed source bracket and feed wave beam blocked；In addition, the feed source bracket can be using one
Change processing method manufacture, can guarantee the concentricity of front and back fixed ring, guarantees the accurate positionin of the feed phase heart and reflecting surface focus,
So as to further enhance the electric property of antenna.
In short, the overall structure of antenna is simple and reasonable present invention employs completely new mentality of designing, have antenna
Feature light-weight, stiffness and strength is high.Meanwhile using titanium alloy feed source bracket, reduces and feed wave beam is blocked, Ke Yibao
The accurate positionin for demonstrate,proving the feed phase heart and reflecting surface focus, enhances the electric property of antenna.Practice have shown that this antenna electrical performance
Well, operation on orbit is stable and reliable for performance.
Detailed description of the invention
In order to clearly describe this patent, one or more attached drawing is provided below, these attached drawings are intended to this patent
Background technique, technical principle and/or certain specific embodiments make aid illustration.It should be noted that these attached drawings can
It some have been described and belongs to known in those of ordinary skill in the art often in this patent word segment to provide not providing
The detail of knowledge；Also, because those skilled in the art can combine the published word content of this patent completely
And/or accompanying drawing content, more attached drawings are designed in the case where not paying any creative work, therefore these attached drawings below
All technical solutions that this patent word segment is described can be covered or not cover.In addition, these attached drawings is specific interior
Contain and the word content in conjunction with this patent is needed to be determined, is tied when some in the word content and these attached drawings of this patent is obvious
When structure is not consistent, needing the narration of common knowledge and this patent other parts in conjunction with this field to carry out comprehensive descision on earth is this
There are exist to draw mistake in clerical mistake or attached drawing for the word segment of patent.Particularly, the following drawings is the figure of exemplary in nature
Piece, it is not intended that imply the protection scope of this patent, those skilled in the art are by reference to text disclosed in this patent
Word content and/or accompanying drawing content can design more attached drawings in the case where not paying any creative work, these are new
Technical solution representated by attached drawing is still within the protection scope of this patent.
Fig. 1 is a kind of structural schematic diagram of satellite-borne data transmission antenna in the embodiment of the present invention；
Fig. 2 is the cross-sectional view of Fig. 1；
Fig. 3 is the structural schematic diagram of Fig. 1 feed source bracket；
Fig. 4 is the sectional view of titanium alloy built-in fitting part；
Fig. 5 is the schematic diagram of satellite-borne data transmission antenna transmitting work wave beam in the embodiment of the present invention.
The meaning of figure label are as follows: pedestal 1, circular polarizer 2, titanium alloy built-in fitting 3, reflecting surface 4, riveting built-in fitting 5, circle
Waveguide 6, pile tooth 60, circular waveguide attachment base 61, titanium alloy feed source bracket 7, preceding fixed ring 71, rear fixed ring 72, connecting edge 73, feedback
Source 8, groove and raised 80, radio frequency connector 9.
Specific embodiment
Understanding for the ease of those skilled in the art to the art of this patent scheme, meanwhile, in order to make the technology of this patent
Purpose, technical scheme and beneficial effects are clearer, and support the protection scope of claims sufficiently, below with tool
The form of body case makes further, more detailed description to the technical solution of this patent.
A kind of satellite-borne data transmission antenna, including reflecting surface, feed, circular waveguide, circular polarizer and feed source bracket；The reflecting surface
Forward and backward carbon fiber skin including honeycomb aluminium interlayer and set on honeycomb aluminium interlayer two sides, the edge side of the honeycomb aluminium interlayer
Face is exposed, and the center of the honeycomb aluminium interlayer is equipped with connection built-in fitting, and the front end of the circular waveguide has pile tooth；The feed is
Shell structure with groove and protrusion, the groove of feed one side constitutes the protrusion of feed another side just, in face reflecting surface
One side on, the groove and protrusion include the tapered protrusion and the annular groove concentric with tapered protrusion positioned at feed center
And annular protrusion, the groove and the alternate setting of protrusion；The circular waveguide and circular polarizer pass through the connection built-in fitting with
The reflecting surface is fixedly connected, and the feed source bracket is connect with the feed and circular waveguide respectively, and keeps the Xiang Xinyu of feed anti-
The focus for penetrating face coincides.
Optionally, the feed source bracket includes preceding fixed ring, rear fixed ring and for connecting preceding fixed ring and rear fixed
The connecting edge of ring has annular convex platform on the outer wall of the circular waveguide, and the rear Fixing shrink ring of the feed source bracket is in the round wave
It leads, and is fixedly connected by screw with the annular convex platform, the preceding fixed ring of the feed source bracket passes through screw and the feedback
The ring edge in source is fixedly connected.
Can be in the upper surface of feed source bracket and lower end surface setting assembly seam allowance, and feed is ensured by integral forming process
The concentricity of bracket, to guarantee the accurate positionin of the feed phase heart Yu reflecting surface focus.This feed source bracket is in addition to necessary branch
Outside support structure, most of region is all hollow out, and this reduces blocking to feed wave beam, the electrical resistance of antenna can be enhanced
Energy.
Optionally, the edge of the honeycomb aluminium interlayer is equipped with riveting built-in fitting, and the forward and backward carbon fiber skin is by wearing
The rivet for crossing riveting built-in fitting is fixed on the front and back sides of honeycomb aluminium interlayer.
Optionally, the connection built-in fitting is ring structure, has screw hole, the company in the disk of the connection built-in fitting
Connect the snap-gauge having on the lateral wall of built-in fitting for being embedded in the honeycomb aluminium interlayer.Specifically, in the production of reflecting surface
In the process, sky will be removed in the middle part of honeycomb aluminium interlayer first, in accordance with the geomery of connection built-in fitting, then at room temperature will
The middle part of built-in fitting insertion honeycomb aluminium interlayer is connected, and fills colloid, the carbon fiber skin of front-back is bonded, forms reflecting surface
The overall structure of reflecting surface is then placed into thermal vacuum tank and completes high-temperature molding by overall structure.
In addition, the rear end of the circular waveguide and the front end of circular polarizer all have attachment base, have on the attachment base
Screw hole, the circular waveguide are passed through from the central circular hole of connection built-in fitting, the attachment base of the circular waveguide and the circular polarizer
Attachment base successively from rear portion be pressed in it is described connection built-in fitting disk on, circular waveguide, circular polarizer and connection built-in fitting between
It is fixedly connected by the screw through three's screw hole.
Optionally, the connection built-in fitting and feed source bracket are titanium alloy material, and the surface of the circular waveguide, which has, leads
Electro-oxidation processes process layer.
In addition, satellite-borne data transmission antenna can be connect by pedestal with satellite, pedestal is set to the back side of reflecting surface, can be with company
It connects built-in fitting and circular polarizer is fixedly connected.
Specifically, as shown in figures 1-4, a kind of satellite-borne data transmission antenna, the antenna are operable with X frequency range.It includes pedestal
1, circular polarizer 2, reflecting surface 4 and feed 8.Pedestal is the transition piece that antenna is connect with satellite health.Circular polarizer is used for electromagnetism
The end of the left-right rotary polarization modulation of wave, circular polarizer is equipped with radio frequency connector 9, the transmission for antenna radio-frequency signal.Entelechy
Change device front end to be connected by titanium alloy built-in fitting 3 with reflecting surface.Titanium alloy built-in fitting has light weight, and specific stiffness, specific strength are high,
The low feature of thermal expansion coefficient, is adapted to the working environment of space high/low temperature alternation.
This antenna is provided with the connection built-in fitting of titanium alloy at the center of reflecting surface, is designed by reasonable configuration, benefit
With connection built-in fitting, antenna reflective face and pedestal, circular polarizer and circular waveguide are connected as an entirety, realize electrical component
With the combination of structure function part, reduce assembling link, reduce electrical loss, solves antenna weights and stiffness by itself intensity
The problem of mutually restricting, is a kind of important improvement to the prior art.
In addition, the reflecting surface of this antenna is carbon fiber honeycomb sandwich construction, also, riveting is embedded in the edge of reflecting surface
Built-in fitting 5 is connect, the aluminum honeycomb of the front and back carbon fiber skin of reflecting surface and middle part can be connected as to an entirety, enhances carbon fiber bee
The safety margin of nest sandwich.
The center of reflecting surface is equipped with circular waveguide 6, and circular waveguide surface uses electric conductive oxidation process, is used for X frequency range electromagnetism
The transmission of wave.The front end of circular waveguide has pile toothing 60, and rear end has attachment base 61.It is equipped with feed 8 in the front of circular waveguide,
There is groove and protrusion 80 on feed 8, for receiving the electromagnetic beam of circular waveguide transmission, and be applied to mirror surface, then
It is transferred to exterior space.
It is equipped with the titanium alloy feed source bracket 7 of particular configuration in the front end of circular waveguide, titanium alloy feed source bracket 7 is by preceding fixed ring
71, rear fixed ring 72 and connecting edge 73 are constituted.This titanium alloy feed source bracket is engraved structure, is significantly reduced to feed wave
Beam blocks, simultaneously, it is ensured that the accurate positionin of the feed phase heart and reflecting surface focus.
The feed of this antenna is the shell structure with groove and protrusion.By adjusting circular waveguide pile tooth height and
The depth/height and gap of gap and feed groove/land, can be with the field strength distribution and dimensional energy distribution of modulated electromagnetic wave
Rule improves electromagnetic wave in the distribution performance of primary reflection surface, enhances gain and the cross polarization electrical specifications of antenna.
Fig. 5 show the schematic diagram that this number passes antenna transmitting work wave beam, and electromagnetic beam signal is carried out pole by circular polarizer
After changing modulation, it is emitted to feed surface by circular waveguide.Antenna beam is emitted to outside after feed and reflecting surface
Data-transformation facility is realized in space.
This antenna structure is simple and stablizes, and electric property is good, and operation on orbit is stable and reliable for performance.
It is to be appreciated that be intended merely to facilitate this field common for the above-mentioned narration for this patent specific embodiment
Technical staff understands this patent scheme and the exemplary description enumerated, does not imply that the protection scope of this patent is limited solely to
In this few example, those of ordinary skill in the art completely can the art of this patent scheme is made fully understand under the premise of,
In the form of not paying any creative work, by taking combination technique feature, replacement to each example cited by this patent
More technical characteristics etc. mode is added in some technical characteristics, obtains more specific embodiments, all these specific implementations
Mode is within the covering scope of patent claims book, and therefore, these new specific embodiments also should be in this patent
Protection scope within.
In addition, this patent may also not enumerate some ordinary specific embodiments for the purpose for simplifying narration, this
A little schemes are that those of ordinary skill in the art can expect naturally after understanding the art of this patent scheme, it is clear that this
A little schemes should also be included within the protection scope of this patent.
For the purpose for simplifying narration, above-mentioned each specific embodiment may only up to for the extent of disclosure of technical detail
The degree that can voluntarily make a decision to those skilled in the art, that is, there is no disclosed technical detail for above-mentioned specific embodiment,
Those of ordinary skill in the art completely can be in the case where not paying any creative work, in filling for the art of this patent scheme
Divide under prompt, by means of textbook, reference book, paper, patent, audio-visual product etc., open source literature is completed, alternatively, this
A little details are the contents that can voluntarily make decision according to the actual situation under being generally understood of those of ordinary skill in the art.
As it can be seen that will not be impacted to the open adequacy of the art of this patent scheme even if these underground technical details.
In short, on the basis of combining explanation effect of the patent specification to claims protection scope, it is any
Fall into the specific embodiment of patent claims book covering scope, within the protection domain of this patent..
Claims (5)
1. a kind of satellite-borne data transmission antenna, including reflecting surface, feed, circular waveguide, circular polarizer and feed source bracket；It is characterized in that,
The reflecting surface includes honeycomb aluminium interlayer and the forward and backward carbon fiber skin set on honeycomb aluminium interlayer two sides, the honeycomb aluminum folder
The edge side open of layer, the center of the honeycomb aluminium interlayer are equipped with connection built-in fitting, and the front end of the circular waveguide has pile tooth；
The feed is the shell structure with groove and protrusion, and the groove of feed one side constitutes the protrusion of feed another side just,
In the one side of face reflecting surface, the groove and protrusion include positioned at the tapered protrusion at feed center and concentric with tapered protrusion
Annular groove and annular protrusion, the groove and the alternate setting of protrusion；The circular waveguide and circular polarizer pass through the company
It connects built-in fitting to be fixedly connected with the reflecting surface, the feed source bracket is connect with the feed and circular waveguide respectively, and makes feed
The phase heart and the focus of reflecting surface coincide.
2. satellite-borne data transmission antenna according to claim 1, which is characterized in that the feed source bracket include preceding fixed ring, after
Fixed ring and connecting edge for connecting preceding fixed ring and rear fixed ring have annular convex platform on the outer wall of the circular waveguide,
The rear Fixing shrink ring of the feed source bracket is fixedly connected on the circular waveguide, and through screw with the annular convex platform, described
The preceding fixed ring of feed source bracket is fixedly connected by screw with the ring edge of the feed.
3. satellite-borne data transmission antenna according to claim 1, which is characterized in that the edge of the honeycomb aluminium interlayer is equipped with riveting
Connect built-in fitting, the forward and backward carbon fiber skin is by being fixed on the front and back sides of honeycomb aluminium interlayer across the rivet of riveting built-in fitting
On.
4. satellite-borne data transmission antenna according to claim 1, which is characterized in that the connection built-in fitting is ring structure, institute
Stating has screw hole in the disk of connection built-in fitting, have on the lateral wall of the connection built-in fitting for being embedded in the honeycomb aluminum folder
Snap-gauge in layer, the rear end of the circular waveguide and the front end of circular polarizer all have attachment base, have spiral shell on the attachment base
Hole, the circular waveguide are passed through from the central circular hole of connection built-in fitting, the attachment base of the circular waveguide and the circular polarizer
Attachment base successively from the disk that rear portion is pressed in the connection built-in fitting, leads between circular waveguide, circular polarizer and connection built-in fitting
The screw crossed through three's screw hole is fixedly connected.
5. satellite-borne data transmission antenna according to claim 1, which is characterized in that the connection built-in fitting and feed source bracket are
The surface of titanium alloy material, the circular waveguide has electric conductive oxidation process layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296061.1A CN109193138B (en) | 2018-11-01 | 2018-11-01 | Satellite-borne data transmission antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296061.1A CN109193138B (en) | 2018-11-01 | 2018-11-01 | Satellite-borne data transmission antenna |
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| Publication Number | Publication Date |
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| CN109193138A true CN109193138A (en) | 2019-01-11 |
| CN109193138B CN109193138B (en) | 2023-08-01 |
Family
ID=64941464
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811296061.1A Active CN109193138B (en) | 2018-11-01 | 2018-11-01 | Satellite-borne data transmission antenna |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860978A (en) * | 2019-01-25 | 2019-06-07 | 彭伶铭 | A kind of radio TV signals receiving antenna |
| CN113113756A (en) * | 2021-04-12 | 2021-07-13 | 上海航天测控通信研究所 | High-integration satellite-borne radar antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860978A (en) * | 2019-01-25 | 2019-06-07 | 彭伶铭 | A kind of radio TV signals receiving antenna |
| CN109860978B (en) * | 2019-01-25 | 2020-10-16 | 东阳市川泽户外用品有限公司 | Antenna for receiving television signal |
| CN113113756A (en) * | 2021-04-12 | 2021-07-13 | 上海航天测控通信研究所 | High-integration satellite-borne radar antenna |
| CN113113756B (en) * | 2021-04-12 | 2022-02-18 | 上海航天测控通信研究所 | High-integration satellite-borne radar antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109193138B (en) | 2023-08-01 |
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