CN200983399Y - X wave band shaping antenna - Google Patents
X wave band shaping antenna Download PDFInfo
- Publication number
- CN200983399Y CN200983399Y CN 200620045957 CN200620045957U CN200983399Y CN 200983399 Y CN200983399 Y CN 200983399Y CN 200620045957 CN200620045957 CN 200620045957 CN 200620045957 U CN200620045957 U CN 200620045957U CN 200983399 Y CN200983399 Y CN 200983399Y
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- excitation rings
- circular polarizer
- antenna
- rings
- metal excitation
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Abstract
The utility model discloses an X-band shaped antenna, which comprises a circular polarizer which is installed on an antenna socket, an inductive choke which is fixed on the circular polarizer, a plurality of metallic excitation rings which are arranged on the upper portion of the inductive choke, and a supporting medium which is arranged between the metallic excitation rings for adjusting and fixing distances between the metallic excitation rings and the circular polarizer, and distances between the metallic excitation rings. The utility model employs the metallic excitation rings to stimulate the radiation of the current and to adjust the distances between the metallic excitation rings and the circular polarizer, and the distances between the metallic excitation rings to change the magnitude and phase of the current, thereby easily changing the maximum radiation angel to increase power capacity, downsize feeder loss and achieve beneficial effects of small size, and compact and solid structure.
Description
Technical field
The utility model relates to a kind of wireless aerial, especially a kind of earth shaped-beam antenna that is used to transmit the X-band radio wave.
Background technology
At present, known X-band shaped aerial is all used the earth shaped-beam that figuration reflecting surface mode directly produces to be needed.Its shortcoming is: 1) size of antenna is bigger, and general antenna reflective face diameter is 600 millimeter; 2) feeder line is long, above 350 millimeters.
At present, domestic X-band shaped aerial has and adopts the both arms helical antenna, also has to adopt reflector antenna.
The shortcoming of both arms helical antenna: 1) power capacity is little, less than 20W; 2) feeder loss is big; 3) slim-lined construction is unfavorable for using via satellite needed vibration requirement.
The shortcoming of reflector antenna: 1) antenna volume is big, and quality is heavy.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of X-band shaped aerial.Utilize the present invention, distance that can be by adjusting metal excitation rings and circular polarizer and the spacing between the becket self change current amplitude and the phase place on each becket, thereby can change the greatest irradiation angle easily, reach desired shaped-beam.
In order to reach the foregoing invention purpose, the utility model is that the technical scheme that its technical problem of solution is adopted provides a kind of X-band shaped aerial, this device comprises: a circular polarizer is installed on antenna base, be fixed with choke on the circular polarizer, the top of choke is provided with 8～20 metal excitation rings, the metal excitation rings has Supporting Media each other, is used to adjust the distance with fixing metal excitation rings and circular polarizer, and metal excitation rings self distance each other.
A kind of X-band shaped aerial of the utility model is owing to adopt the radiation of metal excitation rings exciting current, the distance of adjustment metal excitation rings and circular polarizer and the spacing between the metal excitation rings self change current amplitude and the phase place on each becket, thereby can change the greatest irradiation angle easily, reached the increase power capacity, reduce feeder loss, obtained beneficial effects such as volume is little, compact conformation is firm.
Description of drawings
Fig. 1 is the structure chart of the utility model X-band shaped aerial;
Fig. 2 is the utility model antenna shaped-beam actual measurement axial ratio directional diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Fig. 1 is the structure chart of the utility model X-band shaped aerial.As shown in Figure 1, this device comprises: a circular polarizer 1 is installed on antenna base, be fixed with choke 2 on the circular polarizer 1, the top of choke 2 is provided with several metal excitation rings 4, metal excitation rings 4 has Supporting Media 3 each other, be used to adjust and the distance of fixing metal excitation rings 4 and circular polarizer 1, and metal excitation rings 4 self distance each other.
Circular polarizer 1 receives the number transmission transmitter and propagates the electromagnetic wave of coming, and converts the circular polarization electromagnetic wave to, is radiated on the metal excitation rings 4, has encouraged the electric current radiation on the becket, forms the shaped-beam circular polarization electromagnetic wave of earth coupling.Rationally adjust the spacing between the distance of metal excitation rings 4 and circular polarizer 1 and the metal excitation rings 4 self, just can change current amplitude and phase place on each becket, thereby can change the greatest irradiation angle easily, reach desired shaped-beam.Above-mentioned choke 2 is used for the back lobe of suppressing antenna.
The utility model embodiment adopts 11 metal excitation rings 4 that diameter is 19mm, and distance each other is 10mm.Metal excitation rings 4 is 10mm with the distance of circular polarizer 1.The electrical interface of antenna is the circular polarizer input port, is the X-band waveguide of standard, and concrete model is BJ84 (external model is WR112), and connecting flange is FDP84 (external model is UG51/U).The mechanical mounting interface of antenna can be determined as required.Antenna of the present utility model is the structural member product, by different version, can reach different requirement on electric performance, realizes specific function.
Fig. 2 is the utility model antenna shaped-beam actual measurement axial ratio directional diagram.As shown in Figure 2, the utility model has reached the circular polarization directional diagram radiation with earth coupling figuration, finishes effective transmission of information between satellite and the ground station.
For example, the X-band number passes antenna on certain satellite, requires antenna beam to locate maximum (5.5dB) at ± 58 °, axial 0 ° locate less (3.2dB), between them according to the transition that requires of earth coupling wave beam, the distribution of antenna beam table 1 specific as follows,
Table 1 antenna beam allocation table
| Beam angle | ±58° | ±57° | ±55° | ±50° | ±45° | ±40° | ±35° | ±30° | ±25° | ±20° |
| Gain (dB) | 5.5 | 5.5 | 4.2 | 2.5 | 1.0 | 0 | -0.9 | -1.5 | -2.0 | -2.4 |
| Beam angle | ±15° | ±10° | ±5° | ±0° | ||||||
| Gain (dB) | -2.7 | -2.9 | -3.1 | -3.2 |
As shown in Figure 2,116 ° at interval of the antenna beam maximums of the utility model embodiment, the gain at maximum wave beam place is greater than 5.5dBi, and axially the gain at wave beam place is greater than-2.5dB, and the circular polarization axial ratio has satisfied the requirement of this model satellite preferably less than 5dB.
Claims (3)
1. X-band shaped aerial, it is characterized in that, this device comprises: a circular polarizer (1) is installed on antenna base, be fixed with choke (2) on the circular polarizer (1), the top of choke (2) is provided with 8～20 metal excitation rings (4), metal excitation rings (4) has the distance that is used for adjustment and fixing metal excitation rings (4) and circular polarizer (1) each other, and the Supporting Media (3) of metal excitation rings (4) self distance.
2. X-band shaped aerial according to claim 1, it is characterized in that: described metal excitation rings (4) is that 8～20 diameters are the becket about 19mm, becket distance each other is about 10mm, and metal excitation rings (4) is about 10mm with the distance of circular polarizer (1).
3. X-band shaped aerial according to claim 1 is characterized in that: the input port of described circular polarizer (1) is the electrical interface of antenna, adopts the waveguide of BJ84 standard x wave band, and connecting flange is FDP84.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620045957 CN200983399Y (en) | 2006-09-19 | 2006-09-19 | X wave band shaping antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620045957 CN200983399Y (en) | 2006-09-19 | 2006-09-19 | X wave band shaping antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200983399Y true CN200983399Y (en) | 2007-11-28 |
Family
ID=38910549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620045957 Expired - Fee Related CN200983399Y (en) | 2006-09-19 | 2006-09-19 | X wave band shaping antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200983399Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931488A (en) * | 2012-11-16 | 2013-02-13 | 上海宇航系统工程研究所 | Satellite borne X-band broad beam antenna |
| CN115360503A (en) * | 2022-08-09 | 2022-11-18 | 中国电子科技集团公司第二十九研究所 | Broadband shaped antenna based on multi-turn beam shaped radiation element |
-
2006
- 2006-09-19 CN CN 200620045957 patent/CN200983399Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931488A (en) * | 2012-11-16 | 2013-02-13 | 上海宇航系统工程研究所 | Satellite borne X-band broad beam antenna |
| CN115360503A (en) * | 2022-08-09 | 2022-11-18 | 中国电子科技集团公司第二十九研究所 | Broadband shaped antenna based on multi-turn beam shaped radiation element |
| CN115360503B (en) * | 2022-08-09 | 2024-05-28 | 中国电子科技集团公司第二十九研究所 | Broadband shaping antenna based on multi-turn beam shaping radiating element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20130919 |