CN204144440U - A kind of omnidirectional antenna of L-band - Google Patents
A kind of omnidirectional antenna of L-band Download PDFInfo
- Publication number
- CN204144440U CN204144440U CN201420593728.5U CN201420593728U CN204144440U CN 204144440 U CN204144440 U CN 204144440U CN 201420593728 U CN201420593728 U CN 201420593728U CN 204144440 U CN204144440 U CN 204144440U
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- utility
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model belongs to transmitting radar antenna field, particularly a kind of omnidirectional antenna of L-band, is applicable to L-band radar wave bait antenna-feedback system.The utility model comprises director, upper bracket, micro-band plate, lower carriage and reflecting plate; Micro-band plate is integrated on same substrate by 8 micro-strip dipole antennas connected by one point of eight power division network and forms.The utility model solves existing omnidirectional antenna to be existed on pitching face and effectively covers the problems such as not enough, and it is little that omnidirectional antenna of the present utility model has size, and structure is simple, lightweight, is easy to the feature such as integrated.Omnidirectional antenna voltage standing wave ratio of the present utility model is less than 1.5, is applied to radar decoy antenna-feedback system, can well meet technical requirement.
Description
Technical field
The utility model belongs to transmitting radar antenna field, particularly a kind of omnidirectional antenna of L-band, is applicable to L-band radar wave bait antenna-feedback system.
Background technology
At present, omnidirectional antenna has been widely used on the equipment such as various radar, communication; Omnidirectional antenna structure is simple, be easy to make and produce, cost is lower, and azimuth plane omnidirectional characteristic is good, coverage is large; But the subject matter that omnidirectional antenna exists is limited bandwidth, effectively covers deficiency on pitching face.Antenna system in original radar decoy, wants the antenna that the pitching face that realizes covers on a large scale, and required investment is large, and institute takes up space greatly, installs inconvenience.
Summary of the invention
For the deficiency of background technology, the utility model provides a kind of omnidirectional antenna of L-band, and what solve the existence of existing omnidirectional antenna real pitching face effectively cannot cover the problems such as not enough, simultaneously also to have size little for omnidirectional antenna, structure is simple, lightweight, is easy to the feature such as integrated.
The technical solution of the utility model is: a kind of omnidirectional antenna of L-band is made up of director, upper bracket, micro-band plate, lower carriage and reflecting plate, it is characterized in that:
Described micro-band plate is integrated on same substrate by 8 micro-strip dipole antennas connected by power division network and forms; The feeder line that each micro-strip dipole antenna covers full Copper Foil and substrate front side by umbrella shape substrate, substrate back forms; The feeder line of each micro-strip dipole antenna is connected with the microstrip line of power division network; The microstrip line that micro-band power division network covers full Copper Foil and substrate front side by circular substrate, substrate back forms;
Described director is the metal circular cone of upper surface radius 180mm, lower surface radius 230mm, thickness 3mm;
Described reflecting plate is the circular metal plate of radius 415mm, thickness 3mm;
Described upper bracket is external diameter 79mm, the metallic cylinder of height 102mm;
Described lower carriage is external diameter 79mm, the metallic cylinder of height 43.5mm.
Described omnidirectional antenna, is characterized in that:
The substrate of described micro-band plate is radius 79mm, the polytetrafluoroethylene flat of thickness 1.5mm, and dielectric constant is 2.55; The microstrip line shape of described power division network substrate front side is Wilkinson power divider form.
The utility model antenna size is little, and structure is simple, and lightweight, omnidirectional antenna is horizontal polarization mode, and integrated result is good.Azimuth plane cover omnidirectional, pitching face angle of coverage scope, more than 80 degree, is less than 1.5 in aerial voltage standing-wave ratio frequency band.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is micro-band plate vertical view.
Embodiment
Description of reference numerals: director 1, upper bracket 2, micro-band plate 3, lower carriage 4 and reflecting plate 5, antenna 6, power division network 7.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, the utility model comprises the director 1, upper bracket 2, micro-band plate 3, lower carriage 4 and the reflecting plate 5 that connect successively from top to bottom; The whole antenna total height 248mm of the present embodiment, antenna maximum radius 415mm.
L-band omnidirectional antenna director 1, upper bracket 2, micro-band plate 3, lower carriage 4 and reflecting plate 5 are connected by screw composition.Upper bracket 2 is external diameter 79mm, height 102mm, the metallic aluminium cylinder of thickness 4mm, micro-band plate 3 is radius 79mm, micro-band printed circuit board of thickness 1.5mm, its dielectric material is polytetrafluoroethylene glass copper clad laminate, dielectric constant is 2.55, and micro-band plate 3 is arranged on lower carriage 4, and lower carriage 4 is external diameter 79mm, the metallic aluminium cylinder of height 43.5mm, thickness 4mm.Reflecting plate 5 is the metal aluminum sheet of radius 415mm, thickness 3mm, and reflecting plate 5 is arranged on bottom lower carriage 4.
As shown in Figure 2, by 8 micro-strip dipole antennas 6 and micro-band power division network 7, integration on same substrate forms micro-band plate 3 of the present embodiment, and the feeder line that each micro-strip dipole antenna 6 covers full Copper Foil and substrate front side by umbrella shape substrate, substrate back forms; Each feeder line of micro-strip dipole antenna 6 is connected with the microstrip line of power division network; Umbrella shape substrate height 63.1mm, the widest part width 71.6mm, thickness 1.5mm; The microstrip line that micro-band power division network 8 covers full Copper Foil and substrate front side by circular substrate, substrate back forms; Circular substrate radius 79mm, thickness 1.5mm; The microstrip line shape of substrate front side is Wilkinson power divider form.
The whole substrate of described micro-band plate 3 is radius 79mm, the polytetrafluoroethylene flat of thickness 1.5mm, and dielectric constant is 2.55.
The utility model is applied to L-band radar decoy antenna-feedback system, and antenna connects transmitter.Antenna size is little, and antenna omnidirectional performance is good, and azimuth plane rises and falls and is all less than 1dB, and pitching face angle of coverage scope is more than 80 degree, and aerial voltage standing-wave ratio is less than 1.5, can well meet the technical requirement of radar decoy antenna-feedback system.
Claims (2)
1. a L-band omnidirectional antenna, is made up of director, upper bracket, micro-band plate, lower carriage and reflecting plate, and director, upper bracket, micro-band plate, lower carriage are connected from top to bottom successively with reflecting plate; Described micro-band plate is integrated on same substrate by 8 micro-strip dipole antennas connected by power division network and forms;
It is characterized in that: the feeder line that each micro-strip dipole antenna covers full Copper Foil and substrate front side by umbrella shape substrate, substrate back forms; The feeder line of each micro-strip dipole antenna is connected with the microstrip line of power division network; The microstrip line that micro-band power division network covers full Copper Foil and substrate front side by circular substrate, substrate back forms; Described director is the metal circular cone of upper surface radius 180mm, lower surface radius 230mm, thickness 3mm; Described reflecting plate is the circular metal plate of radius 415mm, thickness 3mm; Described upper bracket is external diameter 79mm, the metallic cylinder of height 102mm; Described lower carriage is external diameter 79mm, the metallic cylinder of height 43.5mm.
2. omnidirectional antenna as claimed in claim 1, is characterized in that:
The substrate of described micro-band plate is radius 79mm, the polytetrafluoroethylene flat of thickness 1.5mm, and dielectric constant is 2.55; The microstrip line shape of described power division network substrate front side is Wilkinson power divider form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593728.5U CN204144440U (en) | 2014-10-15 | 2014-10-15 | A kind of omnidirectional antenna of L-band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593728.5U CN204144440U (en) | 2014-10-15 | 2014-10-15 | A kind of omnidirectional antenna of L-band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204144440U true CN204144440U (en) | 2015-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420593728.5U Expired - Fee Related CN204144440U (en) | 2014-10-15 | 2014-10-15 | A kind of omnidirectional antenna of L-band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204144440U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977608A (en) * | 2016-06-14 | 2016-09-28 | 佛山市粤海信通讯有限公司 | 30-degree gain restraint type omni-directional ceiling antenna |
| CN108288762A (en) * | 2017-11-10 | 2018-07-17 | 武汉滨湖电子有限责任公司 | A method of improving pattern-band radar sidelobe cancellation antenna coverage effect |
-
2014
- 2014-10-15 CN CN201420593728.5U patent/CN204144440U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977608A (en) * | 2016-06-14 | 2016-09-28 | 佛山市粤海信通讯有限公司 | 30-degree gain restraint type omni-directional ceiling antenna |
| CN105977608B (en) * | 2016-06-14 | 2019-05-31 | 佛山市粤海信通讯有限公司 | A kind of 30 ° of gain suppressive all-around top absorbing antennas |
| CN108288762A (en) * | 2017-11-10 | 2018-07-17 | 武汉滨湖电子有限责任公司 | A method of improving pattern-band radar sidelobe cancellation antenna coverage effect |
| CN108288762B (en) * | 2017-11-10 | 2019-10-11 | 武汉滨湖电子有限责任公司 | A method of improving pattern-band radar sidelobe cancellation antenna coverage effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20171015 |