CN214099916U - Inflatable portable planar reflective array antenna - Google Patents
Inflatable portable planar reflective array antenna Download PDFInfo
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- CN214099916U CN214099916U CN202022832036.XU CN202022832036U CN214099916U CN 214099916 U CN214099916 U CN 214099916U CN 202022832036 U CN202022832036 U CN 202022832036U CN 214099916 U CN214099916 U CN 214099916U
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Abstract
The utility model discloses an aerify portable plane reflection array antenna. The technical scheme adopted comprises the following steps: the storage box, can collect in film ball cover in the storage box, set up plane-reflecting surface in the film ball cover, set up the feed at film ball cover top, still connect aerating device, its characterized in that on the film ball cover: the film ball cover is changed into a sphere mode through inflation of the inflation device, a plane reflection surface positioned in the middle of the film ball cover stretches into a plane structure under the action of sphere tension, the film ball cover is divided into an upper hemisphere and a lower hemisphere which are symmetrical through the plane reflection surface, and the upper hemisphere and the lower hemisphere are communicated with each other.
Description
Technical Field
The invention relates to an inflatable portable planar reflective array antenna.
Background
With the continuous launch of high throughput satellites, the satellite downlink capacity is further expanded, and the need for technological innovation in new satellite antennas is rapidly increasing. On one hand, the satellite antenna is required to have better performance, and on the other hand, the overall dimension and the weight are required to be reduced, so that the satellite antenna is light and convenient to use and is suitable for multiple purposes. The mobile satellite antenna has a plurality of requirements in the fields of anti-terrorism outburst, emergency disaster relief, military application and the like. In order to meet the application requirements of future mobile satellite antennas, the satellite antenna with the characteristics of reliable design structure, excellent performance, light weight and portability is the starting point of the antenna design.
As is known, a satellite antenna is composed of a feed source and a parabolic reflector, i.e. a commonly used parabolic antenna. The common parabolic antenna is heavy and inconvenient to install and carry, and the antenna is not convenient to store in practical application. In order to change the current situation, it is necessary to form a flexible and portable antenna with high efficiency and adopt a novel antenna technology and a novel antenna structure. In conventional physical recognition, the planar structure is difficult to realize electromagnetic energy gathering and does not have high-gain antenna characteristics. However, the artificial electromagnetic surface is a new technology antenna, which subverts the conventional understanding of people, realizes electromagnetic energy concentration on a plane reflecting surface, and is an alternative choice of a parabolic antenna. In order to give full play to the advantages of a planar structure, the invention combines the concept of an aerospace inflatable antenna, designs the inflatable sphere antenna, utilizes the tension of the inflatable sphere to realize the expansion of the planar antenna, can really realize the light weight and portability of the satellite antenna by the design, and has simple structure and easy manufacture.
The prior inflatable ball antenna mainly adopts a parabolic antenna technology, and mainly has the following problems:
firstly, the performance of the inflatable parabolic antenna is limited by the precision of the three-dimensional profile, and the manufacturing is difficult. The focusing characteristic of the electromagnetic wave of the parabolic antenna depends on the profile accuracy of the parabolic curved surface, which directly determines the performance of the antenna, which is the most important functional characteristic of the antenna. The performance of a gas filled parabolic antenna is directly related to the manufacturing design and the control of the gas filling, and the following problems arise: first, the non-solidification in the deformation of the inflated structure determines the bottleneck of its own profile accuracy. In addition, the state of the film material in the inflation mode is easily influenced by force, and the technical difficulty of controlling the three-dimensional parabolic structure is high. Finally, when the working frequency is high frequency, the requirement of curve precision synchronization is increased, and the manufacturing difficulty is increased.
Secondly, the structure of the inflatable parabolic antenna is complex, and the reliability is affected. The inflatable parabolic antenna needs a more complex structure to maintain the three-dimensional state of the inflatable parabolic antenna, and the more complex the structure is, the more influence factors are, and the more unstable the antenna is. The air pressure precision of a plurality of sealed cabins determines the state of the paraboloid reflecting surface, and the requirements of air pressure precision control and the sealing performance of the inner sealed cabin are high. The inflation driving form is closely linked with the three-dimensional expansion of the paraboloid, and the influence brought by the driving form in practical application needs to be fully eliminated.
Based on the not enough of traditional spheroid inflatable antenna, use novel antenna technology in this structure, improve the antenna performance, simplify spheroid antenna inner structure, improve the antenna reliability, be the technological problem that at present urgently needs to solve.
Disclosure of Invention
The invention aims to provide an inflatable portable planar reflective array antenna.
In order to solve the above problems, the technical scheme adopted by the invention comprises: the storage box, can collect in film ball cover in the storage box, set up plane-reflecting surface in the film ball cover, set up the feed at film ball cover top, still connect aerating device, its characterized in that on the film ball cover: the film ball cover is changed into a sphere mode through inflation of the inflation device, a plane reflection surface positioned in the middle of the film ball cover stretches into a plane structure under the action of sphere tension, the film ball cover is divided into an upper hemisphere and a lower hemisphere which are symmetrical through the plane reflection surface, and the upper hemisphere and the lower hemisphere are communicated with each other.
The inflatable portable planar reflective array antenna is characterized in that: the plane reflecting surface mainly comprises artificial electromagnetic units, a film medium and a metal ground, wherein the artificial electromagnetic units are arranged on the upper surface of the film medium in an array mode, and the metal ground is a metal thin layer or coating and is arranged on the lower surface of the film medium.
The inflatable portable planar reflective array antenna is characterized in that: an air layer is arranged between the film medium and the metal ground, and the metal ground is coated on the upper surface of the film medium of the bottom layer.
The inflatable portable planar reflective array antenna is characterized in that: the bottom of the storage box is provided with a rotating mechanism, and the storage box integrally rotates through the rotating mechanism.
The inflatable portable planar reflective array antenna is characterized in that: the rotating mechanism is composed of a bottom plate and a motor arranged on the bottom plate, and an output shaft of the motor is connected with the bottom of the storage box.
The inflatable portable planar reflective array antenna is characterized in that: the storage box bottom is equipped with the band and sets up the roller bearing of band top, two free ends of band respectively with film ball cover both sides are connected, film ball cover bottom is arranged in on the roller bearing, through rotating the band drives film ball cover rotates.
The inflatable portable planar reflective array antenna is characterized in that: the belt-shaped object is a rack, a gear meshed with the rack is arranged in the middle of the bottom of the rack, rolling wheels for tightening are arranged on two sides of the bottom of the rack, and the rack is driven to rotate by rotating the gear.
The inflatable portable planar reflective array antenna is characterized in that: the receiver is the cylinder, and its top articulates there is the door that runs from opposite directions.
The inflatable portable planar reflective array antenna is characterized in that: the inner sides of the split doors are provided with support frames, and after the film ball cover is unfolded, the support frames are supported on two sides of the film ball cover.
The inflatable portable planar reflective array antenna is characterized in that: the air charging device is an air pump.
The inflatable portable plane reflective array antenna has the following advantages: the antenna combines the plane reflecting surface with the film ball cover, uses the tension of the film ball cover as the support of the plane reflecting surface, and has simple structure and strong reliability. Compared with the traditional satellite inflatable parabolic antenna, the internal structure of the inflatable sphere is simplified, the manufacturing is easy, and the performance and the reliability of the antenna are improved. The inflatable ball body can be placed in the storage box, and a direction and pitch transmission device is designed in the box body, so that the antenna can be manually or electrically aligned to an incoming wave signal (such as a satellite signal). The inflatable ball body can be used as an antenna housing, has a protection effect on a reflecting surface and adapts to severe environment. Compared with the traditional curing antenna, the antenna has the advantages of simple storage, small weight and volume, excellent portability and easy use.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of an inflatable portable planar reflective array antenna of the present invention;
FIG. 2 is a cross-sectional view of an inflatable portable planar reflective array antenna of the present invention;
FIG. 3 is a side view of a planar reflective surface of the present invention showing a 3-layer structure;
FIG. 4 is a side view of a planar reflective surface of the present invention showing a 4-layer structure;
fig. 5 is a front view of a planar reflective surface of the present invention.
Detailed Description
Referring to fig. 1 to 5, the portable planar reflective array antenna of the present invention includes a storage box 1, a film dome 2 which is stored in the storage box 1, a planar reflective surface 3, a feed source 4 and an inflator 5. The planar reflecting surface 3 is arranged in the film ball cover 2, the feed source 4 is arranged at the top of the film ball cover 2, the inflation device 5 is connected with the film ball cover 2 for inflation, and the inflation device 5 is an air pump. The film dome cover 2 is changed into a sphere mode through inflation of an inflation device 5, a plane reflection surface 3 positioned in the middle of the film dome cover 2 stretches into a plane structure under the action of sphere tension, the film dome cover 2 is divided into an upper hemisphere 6 and a lower hemisphere 7 which are symmetrical through the plane reflection surface 3, and the upper hemisphere 6 is communicated with the lower hemisphere 7. The material of the film ball cover 2 can be polyimide film (Kapton), aramid composite material (Kevlar), polyester polymer (Mylar) and the like, composite fabric material and the like.
Preferably, the planar reflecting surface 3 mainly comprises artificial electromagnetic units 8, a thin film medium 9 and a metal ground 10, wherein the artificial electromagnetic units 8 are arranged on the upper surface of the thin film medium 9 in an array manner, and the metal ground 10 is a metal coating and is coated on the lower surface of the thin film medium 9. An air layer 11 is arranged between the thin film medium 9 and a metal ground 10 according to requirements, and the metal ground 10 is coated on the upper surface of the thin film medium 9 of the bottom layer. The film medium adopts a flexible circuit board substrate structure, can be a combination of various film materials, and comprises polytetrafluoroethylene, polyimide, polyester films and the like, composite fabric materials and the like.
Preferably, a rotation mechanism 12 is provided at the bottom of the storage case 1, and the storage case 1 is integrally rotated by the rotation mechanism 12. The rotating mechanism 12 is composed of a bottom plate 13 and a motor 14 arranged on the bottom plate 13, and an output shaft of the motor 14 is connected with the bottom of the storage box 1. Receiver 1 bottom is equipped with band 15 and sets up the roller bearing 16 of band 15 top, two free ends of band 15 respectively with 2 both sides of film ball cover are connected, 2 bottoms of film ball cover are arranged in on the roller bearing 16, through rotating band 15 drives film ball cover 2 rotates. The belt-shaped object 15 is preferably a rack, a gear 17 meshed with the rack is arranged in the middle of the bottom of the rack, rolling wheels 18 for tightening are arranged on two sides of the bottom of the rack, the gear 17 can be connected with a motor, and the rack is driven to rotate by rotating the gear 17. The structure can realize the direction and pitching transmission control of the antenna so as to realize the alignment of the antenna to incoming wave signals in an electric mode.
Preferably, the storage box 1 is cylindrical, and a split door 19 is hinged to the top of the storage box. The inner sides of the split doors 19 are provided with support frames 20, and after the film ball cover 2 is unfolded, the support frames 20 are supported on two sides of the film ball cover 2 to play a role in stabilizing the film ball cover 2 after being unfolded.
Although the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an aerify portable plane reflection array antenna, includes receiver (1), can collect in film ball cover (2), plane-reflecting face (3), the setting of setting in film ball cover (2) in receiver (1) are in feed (4) at film ball cover (2) top, still connect aerating device (5), its characterized in that on film ball cover (2): the film ball cover (2) is changed into a sphere mode through inflation of an inflation device (5), a plane reflection surface (3) in the middle of the film ball cover (2) stretches into a plane structure under the action of sphere tension, and the film ball cover (2) is divided into an upper hemisphere (6) and a lower hemisphere (7) which are symmetrical through the plane reflection surface (3), and the upper hemisphere (6) and the lower hemisphere (7) are communicated with each other.
2. The inflatable portable planar reflective array antenna of claim 1, wherein: the plane reflecting surface (3) mainly comprises artificial electromagnetic units (8), a film medium (9) and a metal ground (10), wherein the artificial electromagnetic units (8) are arranged on the upper surface of the film medium (9) in an array mode, and the metal ground (10) is a metal coating or a metal thin layer and is arranged on the lower surface of the film medium (9).
3. The inflatable portable planar reflective array antenna of claim 2, wherein: an air layer (11) is arranged between the thin film medium (9) and a metal ground (10), and the metal ground (10) is coated on the upper surface of the thin film medium (9) at the bottom layer.
4. The inflatable portable planar reflective array antenna of claim 1, wherein: the bottom of the storage box (1) is provided with a rotating mechanism (12), and the storage box (1) is integrally rotated through the rotating mechanism (12).
5. The inflatable portable planar reflective array antenna of claim 4, wherein: the rotating mechanism (12) is composed of a bottom plate (13) and a motor (14) arranged on the bottom plate (13), and an output shaft of the motor (14) is connected with the bottom of the storage box (1).
6. The inflatable portable planar reflective array antenna of claim 1, wherein: receiver (1) bottom is equipped with band (15) and sets up roller bearing (16) above band (15), two free ends of band (15) respectively with film ball cover (2) both sides are connected, film ball cover (2) bottom is arranged in on roller bearing (16), through rotating band (15) drive film ball cover (2) rotate.
7. The inflatable portable planar reflective array antenna of claim 6, wherein: the belt-shaped object (15) is a rack, a gear (17) meshed with the rack is arranged in the middle of the bottom of the rack, rolling wheels (18) for tightening are arranged on two sides of the bottom of the rack, and the rack is driven to rotate by rotating the gear (17).
8. The inflatable portable planar reflective array antenna of claim 1, wherein: the storage box (1) is cylindrical, and the top of the storage box is hinged with a split door (19).
9. The inflatable portable planar reflective array antenna of claim 8, wherein: the inner sides of the split doors (19) are provided with support frames (20), and after the film ball cover (2) is unfolded, the support frames (20) are supported on two sides of the film ball cover (2).
10. The inflatable portable planar reflective array antenna of claim 1, wherein: the air charging device (5) is an air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022832036.XU CN214099916U (en) | 2020-12-01 | 2020-12-01 | Inflatable portable planar reflective array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022832036.XU CN214099916U (en) | 2020-12-01 | 2020-12-01 | Inflatable portable planar reflective array antenna |
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| Publication Number | Publication Date |
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| CN214099916U true CN214099916U (en) | 2021-08-31 |
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| CN202022832036.XU Active CN214099916U (en) | 2020-12-01 | 2020-12-01 | Inflatable portable planar reflective array antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117154418A (en) * | 2023-10-31 | 2023-12-01 | 广东福顺天际通信有限公司 | Compressible electromagnetic wave lens and reflector |
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2020
- 2020-12-01 CN CN202022832036.XU patent/CN214099916U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117154418A (en) * | 2023-10-31 | 2023-12-01 | 广东福顺天际通信有限公司 | Compressible electromagnetic wave lens and reflector |
| CN117154418B (en) * | 2023-10-31 | 2024-02-20 | 广东福顺天际通信有限公司 | Compressible electromagnetic wave lens and reflector |
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