CN211629293U - High-power gradual change slot line antenna and unmanned aerial vehicle radio frequency interference system - Google Patents
High-power gradual change slot line antenna and unmanned aerial vehicle radio frequency interference system Download PDFInfo
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- CN211629293U CN211629293U CN201921637750.4U CN201921637750U CN211629293U CN 211629293 U CN211629293 U CN 211629293U CN 201921637750 U CN201921637750 U CN 201921637750U CN 211629293 U CN211629293 U CN 211629293U
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- 238000002955 isolation Methods 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002452 interceptive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model discloses a high-power gradual change slot line antenna and a small unmanned aerial vehicle radio frequency interference system, which comprises a medium supporting plate and an antenna main body detachably connected on the medium supporting plate; the antenna main body comprises a first antenna and a second antenna, the first antenna is provided with a first gradual change groove, a first tuning hole, a choke groove and an isolation groove, the second antenna is provided with a second gradual change groove and a second tuning hole, and the first antenna and the second antenna are separated through the isolation groove; the first tuning hole and the second tuning hole are welded with a cable; the beneficial effects are that: the utility model discloses a choke groove of gradual change slot line antenna setting is used for adjusting the surface current on the antenna, has improved the front-to-back ratio of antenna and the antenna gain of the frequency channel of working, and first gradual change groove and second gradual change groove are used for the radiation direction of appointed antenna for the whole power capacity of antenna is high, and the processing cost is low.
Description
Technical Field
The utility model relates to an antenna technology field especially relates to a high-power gradual change slot line antenna and unmanned aerial vehicle radio frequency interference system.
Background
The gradual change slot antenna is a classic ultra-wideband antenna, has the characteristics of wide impedance frequency band, high radiation efficiency, good directional diagram symmetry, low plane and the like, but has the defects of low power capacity, poor front-to-back ratio, high processing cost and the like; therefore, it is an urgent problem to improve the transmission power capacity of the tapered slot antenna, reduce the processing cost, and improve the front-to-back ratio of the directional diagram.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-power gradual change slot line antenna and unmanned aerial vehicle radio frequency interference system to solve the problem that above-mentioned background art appears.
In order to solve the technical problem, the utility model discloses a technical scheme does: a high-power gradual change slot line antenna comprises a medium supporting plate and an antenna main body detachably connected to the medium supporting plate; the antenna main body comprises a first antenna and a second antenna, the first antenna is provided with a first gradual change groove, a first tuning hole, a choke groove and an isolation groove, the second antenna is provided with a second gradual change groove and a second tuning hole, and the first antenna and the second antenna are separated by the isolation groove; and the first tuning hole and the second tuning hole are welded with cables.
As the preferred scheme of the utility model, first gradual change groove and second gradual change groove all are the sword mouth form of width from little grow.
As the utility model discloses a preferred scheme, choke groove includes that the symmetry is located the row's groove district of first antenna both sides, it reduces gradually and is linear arrangement's notch for eleven length to arrange the groove district.
As a preferable embodiment of the present invention, the antenna main body and the dielectric support plate are connected together by a fixing rivet.
As the utility model discloses an optimized scheme, first antenna and second antenna integrated into one piece are the metal sheet, offer the screw hole that is used for the installation on the metal sheet.
As the preferred embodiment of the present invention, the first tuning hole and the second tuning hole are installed in the starting point of the first gradual-change groove and the second gradual-change groove, respectively.
The utility model provides a small-size unmanned aerial vehicle radio frequency interference system, include interfering device with connect in interfering device's antenna equipment, the antenna equipment sets up a plurality ofly gradual change slot line antenna, the first tuning hole circuit of gradual change slot line antenna connect in interfering device's signal input port, the second tuning hole circuit is connected in interfering device's power amplifier delivery outlet.
As the preferred scheme of the utility model, install five gradual change slot line antennas in the antenna equipment, five gradual change slot line antenna is coiled into round evenly distributed.
The beneficial effect of adopting above-mentioned technical scheme is: the utility model discloses a choke groove of gradual change slot line antenna setting is used for adjusting the surface current on the antenna, has improved the front-to-back ratio of antenna and the antenna gain of the frequency channel of working, and first gradual change groove and second gradual change groove are used for the radiation direction of appointed antenna for the whole power capacity of antenna is high, and the processing cost is low.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention;
in the figure, 1, a first antenna; 2. a second antenna; 3. a first tapered slot; 4. a second tapered slot; 5. a choke groove; 6. a media support plate; 7. a first tuning hole; 8. a second tuning hole; 9. riveting; 10. a screw hole; 11. a cable wire; 12. and (4) isolating the groove.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, a high-power gradually-changing slot antenna includes a dielectric support plate 6, an antenna main body detachably connected to the dielectric support plate 6; the antenna main body comprises a first antenna 1 and a second antenna 2, the first antenna 1 is provided with a first gradual change groove 3, a first tuning hole 7, a choke groove 5 and an isolation groove 12, the second antenna 2 is provided with a second gradual change groove 4 and a second tuning hole 8, and the first antenna 1 and the second antenna 2 are separated by the isolation groove 12; the cable wires 11 are welded to the first tuning hole 7 and the second tuning hole 8. The antenna main part is monoblock metal sheet, and dielectric support plate 6 is located antenna main part front half below, and antenna main part relies on rivet 9 and dielectric support plate 6 to be fixed together, and antenna main part and dielectric support plate 6 are two planar structure hugging closely together promptly, wherein: the antenna body further comprises two regions, a first antenna 1 and a second antenna 2; the radiation direction of the antenna points to the opening directions of the first gradual change groove 3 and the second gradual change groove 4; the first tuning hole 7 and the second tuning hole 8 are used for adjusting impedance matching of the antenna to improve radiation efficiency of the antenna in a working frequency band, and the choke groove 5 is used for adjusting surface current on the antenna to improve front-to-back ratio of the antenna and antenna gain of the working frequency band.
The first gradual change groove 3 and the second gradual change groove 4 are both in a knife edge shape with the width gradually increasing from small to big, and the gradual change line of the knife edge shape is an exponential gradual change line.
The antenna body and the dielectric support plate 6 are connected together by a fixing rivet 9. The medium supporting plate 6 is made of FR4_ epoxy (dielectric constant is 4.3) material.
The first antenna 1 and the second antenna 2 are integrally formed into a metal plate, and a screw hole 10 for installation is formed in the metal plate; the antenna main body is processed and finished by a brass plate with the thickness of 1mm, and the screw hole 10 is used for installing the metal plate on equipment.
The first tuning hole 7 and the second tuning hole 8 are respectively installed at the starting points of the first tapered slot 3 and the second tapered slot 4.
The utility model discloses a gradual change slot line antenna can use in a small-size unmanned aerial vehicle radio frequency interference system, including interference equipment with connect in interference equipment's antenna equipment, the antenna equipment sets up a plurality of gradual change slot line antenna, the first tuning hole 7 line connection of gradual change slot line antenna in interference equipment's signal input port, 8 line connection in interference equipment's power amplifier delivery outlet in second tuning hole. Interference equipment is used for producing the interference source, sends out interference unmanned aerial vehicle through the antenna equipment who connects, and the interference source obtains great signal gain through the gradual change slot line antenna in the antenna equipment, makes the interference signal of launching stronger.
As shown in fig. 2, five gradually-changing slot line antennas are installed in the antenna device, and the five gradually-changing slot line antennas are uniformly distributed in a circle. The antenna is a layout mode of a gradient slot line antenna in the antenna equipment, and the antenna wound into a circle can emit interference signals to a range of 360 degrees without dead angles.
The utility model discloses a concrete embodiment of gradual change slot line antenna: the antenna main body is a brass plate with the thickness of 1mm, the dielectric support plate 6 is an FR4_ expoxy material substrate with the dielectric constant of 4.3 and the thickness of 1.6mm, the size of the antenna main body is 209.4mm (L) multiplied by 170mm (W), and the size of the dielectric support plate 6 is 58mm (L) multiplied by 150mm (W). The cables connected with the first tuning hole 7 and the second tuning hole 8 are semi-flexible cables with the medium diameter of 2 mm. The working frequency band of the first antenna 1 is 2.4GHz-2.5GHz, the working frequency band of the second antenna 2 is 5.6GHz-5.9GHz, the actually measured working frequency bands of the first antenna 1 and the second antenna 2 are far wider than the required frequency band, in the required working frequency band, the voltage reflection standing wave ratio (VSWR) of the antenna is less than or equal to 2, the working bandwidth range of the antenna is that, the first antenna 1: 1GHz, second antenna 2: 1.5 GHz.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (8)
1. The high-power gradual change slot line antenna is characterized by comprising a medium supporting plate and an antenna main body detachably connected to the medium supporting plate; the antenna main body comprises a first antenna and a second antenna, the first antenna is provided with a first gradual change groove, a first tuning hole, a choke groove and an isolation groove, the second antenna is provided with a second gradual change groove and a second tuning hole, and the first antenna and the second antenna are separated by the isolation groove; and the first tuning hole and the second tuning hole are welded with cables.
2. The high-power gradually-changing slot line antenna as claimed in claim 1, wherein the first gradually-changing slot and the second gradually-changing slot are both in the shape of a knife-edge with the width gradually increasing from small to large.
3. The high power tapered slot antenna according to claim 1, wherein the choke slot comprises eleven slots with gradually decreasing length and arranged linearly, and the slot regions are symmetrically disposed at both sides of the first antenna.
4. The high power tapered slot line antenna according to claim 1, wherein the antenna body and the dielectric support plate are connected together by a fixing rivet.
5. The high-power gradually-changing slot line antenna as claimed in claim 1, wherein the first antenna and the second antenna are integrally formed as a metal plate, and a screw hole for mounting is formed on the metal plate.
6. The high power gradually-changed slot line antenna according to claim 1, wherein the first tuning hole and the second tuning hole are respectively installed at the starting points of the first gradually-changed slot and the second gradually-changed slot.
7. Small-size unmanned aerial vehicle radio frequency interference system, including jamming equipment with connect in jamming equipment's antenna equipment, its characterized in that, set up a plurality of gradual change slot line antennas as in any one of claims 1-6 in the antenna equipment, the first tuning hole circuit of gradual change slot line antenna connect in jamming equipment's signal input port, second tuning hole circuit connects in jamming equipment's power amplifier delivery outlet.
8. A small unmanned aerial vehicle radio frequency interference system according to claim 7, wherein five tapered slot line antennas are installed in the antenna device, and are uniformly distributed around a circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637750.4U CN211629293U (en) | 2019-09-28 | 2019-09-28 | High-power gradual change slot line antenna and unmanned aerial vehicle radio frequency interference system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921637750.4U CN211629293U (en) | 2019-09-28 | 2019-09-28 | High-power gradual change slot line antenna and unmanned aerial vehicle radio frequency interference system |
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| Publication Number | Publication Date |
|---|---|
| CN211629293U true CN211629293U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921637750.4U Active CN211629293U (en) | 2019-09-28 | 2019-09-28 | High-power gradual change slot line antenna and unmanned aerial vehicle radio frequency interference system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471688A (en) * | 2021-06-15 | 2021-10-01 | 西安电子科技大学 | Dual-frequency antenna loaded by gradual change slot line |
| CN114784504A (en) * | 2022-03-31 | 2022-07-22 | 中国电子科技集团公司第二十九研究所 | Method for improving isolation between antenna arrays and antenna array |
-
2019
- 2019-09-28 CN CN201921637750.4U patent/CN211629293U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471688A (en) * | 2021-06-15 | 2021-10-01 | 西安电子科技大学 | Dual-frequency antenna loaded by gradual change slot line |
| CN113471688B (en) * | 2021-06-15 | 2022-11-29 | 西安电子科技大学 | Dual-frequency antenna loaded by gradual change slot line |
| CN114784504A (en) * | 2022-03-31 | 2022-07-22 | 中国电子科技集团公司第二十九研究所 | Method for improving isolation between antenna arrays and antenna array |
| CN114784504B (en) * | 2022-03-31 | 2023-09-26 | 中国电子科技集团公司第二十九研究所 | Method for improving isolation between antenna arrays and antenna array |
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