CN207353466U - A kind of GNSS antenna means for anti-jamming - Google Patents
A kind of GNSS antenna means for anti-jamming Download PDFInfo
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- CN207353466U CN207353466U CN201721387056.2U CN201721387056U CN207353466U CN 207353466 U CN207353466 U CN 207353466U CN 201721387056 U CN201721387056 U CN 201721387056U CN 207353466 U CN207353466 U CN 207353466U
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- antenna
- gnss antenna
- jamming
- disk
- inner cylinder
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Abstract
The utility model provides a kind of GNSS antenna means for anti-jamming, suppressor including antenna house and in antenna house, the suppressor includes disk, the inner cylinder being arranged on the disk and the outer cylinder being arranged on the outside of inner cylinder, the disk is provided centrally with GNSS antenna, and a radio frequency connector being connected with GNSS antenna is provided with disk.The utility model in antenna house by setting an outer cylinder and inner cylinder; GNSS antenna and the radio frequency connector for GNSS antenna feed are installed in inner cylinder; the height of outer cylinder is the quarter-wave of external interference electromagnetic wave; effectively to receive external interference electromagnetic wave and be introduced into ground, so as to protect the interference of the interference-free electromagnetic wave of antenna.Compared with prior art, the present apparatus can effectively resist aerial strong jamming, position built-in antenna normal navigation in noisy electromagnetic environment, and the utility model also has the advantages that simple in structure, realization is easy, cost is low, applied widely.
Description
Technical field
The utility model is related to means for anti-jamming, and in particular to be a kind of GNSS antenna means for anti-jamming, for flying
Device navigation antenna system.
Background technology
As aviation field aircraft is fast-developing, aircraft independence, anti-interference and quick-reaction capability are proposed
Increasingly higher demands, therefore the precision of navigation system and reliability become more and more important.Global Navigation Satellite System is
Can at the earth's surface or any place of terrestrial space provides round-the-clock three-dimensional coordinate and speed and temporal information to the user
Space radio navigation positioning system, low cost, high accuracy three-dimensional position, speed and accurate fixed can be provided for Global Subscriber
When etc. navigation information, this is undoubtedly one of information resources of aircraft first choice.But the signal of Global Navigation Satellite System transmitting
It is very weak during arrival ground, do not possess anti-jamming signal again plus the supporting GNSS satellite navigation antenna of existing navigation terminal
Ability, easily disturbed, this is undoubtedly huge hidden danger for aircraft.
Utility model content
For this reason, the purpose of this utility model is to provide one kind has common-path interference, structure is simple and easy to implement, cost
GNSS antenna means for anti-jamming low, applied widely.
The purpose of this utility model is achieved through the following technical solutions.
A kind of GNSS antenna means for anti-jamming, for being shielded to external interference electromagnetic wave, including antenna house and peace
Suppressor in antenna house, the suppressor include disk, the inner cylinder being arranged on the disk and are arranged at
Outer cylinder on the outside of inner cylinder, the disk are provided centrally with GNSS antenna, and be provided with one in disk is connected with GNSS antenna
Radio frequency connector.
Preferably, the antenna house is by fixed frame, the nonmetallic cylindrical body being fixedly mounted on fixed frame, and is arranged at
Nonmetallic upper cover in the nonmetallic cylindrical body is formed.
Preferably, the inner cylinder and outer cylinder are concentric metallic cylinder.
Preferably, the height of the outer cylinder is the quarter-wave of external interference electromagnetic wave.
Preferably, the high 6CM of the inner cylinder, the high 5CM of outer cylinder.
Preferably, the diameter of the inner cylinder and disk is 12CM；A diameter of 14CM of the outer cylinder.
Preferably, the radio frequency connector is SMA radio frequency connectors.
The utility model is provided with GNSS antenna by setting an outer cylinder and inner cylinder in antenna house in inner cylinder
With the radio frequency connector fed for GNSS antenna, the height of outer cylinder is the quarter-wave of external interference electromagnetic wave, to have
Effect receives external interference electromagnetic wave and is introduced into ground, so as to protect the interference of the interference-free electromagnetic wave of antenna.With the prior art
Compare, the present apparatus can effectively resist aerial strong jamming, position built-in antenna normal navigation in noisy electromagnetic environment.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model GNSS antenna means for anti-jamming；
Fig. 2 is the structure diagram of the utility model suppressor.
Identifier declaration in figure：It is antenna house 100, nonmetallic cylindrical body 101, nonmetallic upper cover 102, fixed frame 103, anti-interference
Device 200, disk 201, outer cylinder 202, inner cylinder 203, GNSS antenna 204, radio frequency connector 205.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
It is easily disturbed for the problem that existing GNSS satellite navigation antenna does not possess the ability of anti-jamming signal, this reality
Provide that a kind of that there is common-path interference, the GNSS antenna that structure is simple and easy to implement, cost is low, applied widely to resist is dry with new
Disturb device.
Refering to Figure 1, Fig. 1 is the structure diagram of the utility model GNSS antenna means for anti-jamming.It is wherein described
GNSS antenna means for anti-jamming include antenna house 100 and the suppressor 200 in antenna house 100.
Antenna house 100 is made of nonmetallic cylindrical body 101, nonmetallic upper cover 102 and 103 three parts of fixed frame, wherein non-
Metal tub body 101 is fixedly mounted on fixed frame 103, rather than metal top cover 102 is arranged at the nonmetallic top of cylindrical body 101,
To form the cover body of a sealing.
Nonmetallic cylindrical body 101 is straight cylinder, rather than metal top cover 102 is semicircle sphere, the antenna house table of the two composition
Face is smooth, has the effect for reducing resistance.
Antenna house 100 is linked together by silicon rubber and fixed frame 103.
It should be noted that suppressor 200 can be installed on fixed frame 103 by screw in the present embodiment, also may be used
With by flat thin magnet absorption, on product, occupation mode is various, and mounting means consolidates convenient.
As shown in Fig. 2, Fig. 2 is the structure diagram of the utility model suppressor.Suppressor 200 is installed on antenna house
In 100, it includes disk 201, outer cylinder 202 and inner cylinder 203.
Outer cylinder 202 and inner cylinder 203 are concentric metallic cylinder, and inner cylinder 203 is located in outer cylinder 202, and this
The height of inner cylinder 203 is 6CM in embodiment, and the height of outer cylinder 202 is 5CM, the two is contour at peak.
Inner cylinder 203 is arranged on disk 201, the two diameter is 12CM, a diameter of 14CM of outer cylinder 202, and interior
Connected between cylinder 203 and outer cylinder 202 by metalwork.
Disk 201 and 203 diameter of inner cylinder are inconsistent, the two 360 ° seamless connected, the center of disk 201
GNSS antenna 204 is provided with, disk 201 is internally provided with a radio frequency connector 205 being connected with GNSS antenna 204, this is penetrated
Frequency connector 205 is SMA radio frequency connectors, it is connected to the feed position of external circuit.
Disk 201 can strengthen antenna ground formedness, and the effective reflecting surface of increase antenna, improve transmitting-receiving efficiency,
The size of disk 201 and inner cylinder face highly decide the low elevation angle and the yield value of antenna, it is intended to effectively improve antenna and receive letter
Number sensitivity.
The cylinder face of inner cylinder 203 is (disk and inner cylinder face face at a right angle) in 90 ° everywhere with disk 201；The height of outer cylinder
Degree about disturbs the quarter-wave of electromagnetic wave, can effectively receive external interference electromagnetic wave and be introduced into ground, so as to protect
Protect the interference of the interference-free electromagnetic wave of antenna.
The top margin of outer cylinder 202 is slightly contour with inner cylinder top margin, and outer cylinder face is parallel with inner cylinder face, outer cylinder face with it is interior
Be connected among barrel surface by round metal anchor ring, and outer cylinder face and inner cylinder face with this round metal anchor ring (right angle in 90 °
Face).
In conclusion the utility model employs the effective reflecting surface of increase antenna, improves antenna gain and to receiving
The principle that external interference electromagnetic wave is shielded, realizes the beneficial anti-jamming effectiveness of GNSS antenna means for anti-jamming, the device
It can realize that aircraft can be accurately positioned in strong jamming electromagnetic environment and normally perform task, can be widely applied to the army and the people
User's air communication navigation equipment.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
- A kind of 1. GNSS antenna means for anti-jamming, for being shielded to external interference electromagnetic wave, it is characterised in that including antenna Cover (100) and the suppressor (200) in antenna house (100), the suppressor (200) include disk (201), The inner cylinder (203) being arranged on the disk (201) and the outer cylinder (202) being arranged on the outside of inner cylinder (203), the circle Disk (201) is provided centrally with GNSS antenna (204), and a radio frequency being connected with GNSS antenna (204) is provided with disk (201) Connector (205).
- 2. GNSS antenna means for anti-jamming as claimed in claim 1, it is characterised in that the antenna house (100) is by fixed frame (103), the nonmetallic cylindrical body (101) being fixedly mounted on fixed frame (103), and it is arranged at the nonmetallic cylindrical body (101) the nonmetallic upper cover (102) on is formed.
- 3. GNSS antenna means for anti-jamming as claimed in claim 2, it is characterised in that the inner cylinder (203) and outer cylinder (202) it is concentric metallic cylinder.
- 4. GNSS antenna means for anti-jamming as claimed in claim 3, it is characterised in that the height of the outer cylinder (202) is The quarter-wave of external interference electromagnetic wave.
- 5. GNSS antenna means for anti-jamming as claimed in claim 4, it is characterised in that the high 6CM of the inner cylinder (203), institute State outer cylinder (202) high 5CM.
- 6. GNSS antenna means for anti-jamming as claimed in claim 5, it is characterised in that the inner cylinder (203) and disk (201) diameter is 12CM；A diameter of 14CM of the outer cylinder (202).
- 7. GNSS antenna means for anti-jamming as claimed in claim 6, it is characterised in that the radio frequency connector (205) is SMA Radio frequency connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721387056.2U CN207353466U (en) | 2017-10-25 | 2017-10-25 | A kind of GNSS antenna means for anti-jamming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721387056.2U CN207353466U (en) | 2017-10-25 | 2017-10-25 | A kind of GNSS antenna means for anti-jamming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207353466U true CN207353466U (en) | 2018-05-11 |
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ID=62356429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721387056.2U Active CN207353466U (en) | 2017-10-25 | 2017-10-25 | A kind of GNSS antenna means for anti-jamming |
Country Status (1)
| Country | Link |
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| CN (1) | CN207353466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021807A (en) * | 2019-05-09 | 2019-07-16 | 泰兴市东盛通讯器材有限公司 | A kind of Antenna Anti-jamming device |
-
2017
- 2017-10-25 CN CN201721387056.2U patent/CN207353466U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021807A (en) * | 2019-05-09 | 2019-07-16 | 泰兴市东盛通讯器材有限公司 | A kind of Antenna Anti-jamming device |
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