CN203180071U - Quadrangle four-arm spiral antenna with double-spiral structure - Google Patents
Quadrangle four-arm spiral antenna with double-spiral structure Download PDFInfo
- Publication number
- CN203180071U CN203180071U CN 201320175027 CN201320175027U CN203180071U CN 203180071 U CN203180071 U CN 203180071U CN 201320175027 CN201320175027 CN 201320175027 CN 201320175027 U CN201320175027 U CN 201320175027U CN 203180071 U CN203180071 U CN 203180071U
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- radiation metal
- metal bar
- metal strips
- double
- spiral
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Abstract
The utility model discloses a quadrangle four-arm spiral antenna with a double-spiral structure, comprising a cubic base, a signal input terminal and four radiation metal strips which are arranged on the surface of the cone-shaped base in a spiral manner. The head ends of the four radiation metal strips are all arranged on one end surface of the cone-shaped base, wherein the head ends of two radiation metal strips are connected with one end of the signal input terminal, and the head ends of the other two radiation metal strips are connected with the other end of the signal input terminal, and the radiation metal strips are spiral metal strips. According to the quadrangle four-arm spiral antenna with a double-spiral structure, spiral radiation metal strips are employed, thereby the actual lengths of the radiation metal strips are increased by times without increasing the prior size of the antenna, the electromagnetic radiation range of the radiation metal strips is substantially increased, signal transmission performance is improved, the bandwidth of the work frequency band of the quadrangle four-arm spiral antenna is obviously increased, and the high bandwidth requirement for covering multi-positioning system is satisfied.
Description
Technical field
The utility model relates to a kind of square four-arm spiral antenna, relates in particular to a kind of double-stranded square four-arm spiral antenna of high-band bandwidth.
Background technology
The miniaturization of antenna refers to reduce the size of antenna and keep a kind of measure that its radiation characteristic is basic and designing requirement originally conforms in fixing operating frequency.Along with developing rapidly of mobile communication, the method for different miniaturizations is arranged at different antenna type (revolving antenna and printed microstrip antennas etc. as wire antenna, planar inverted reason antenna, medium resonator antenna, slot antenna, behaviour).
Since KILGUS proposes the resonant mode four-arm spiral antenna in nineteen sixty-eight, and with the methods analyst of two quadrature loop dipoles equivalence its operation principle, the resonant mode four-arm spiral antenna just has been subjected to researcher and user's general liking.Miniaturization, broad beam and broadband are the research directions of four-arm spiral antenna always.
The matrix of four-arm spiral antenna has multiple shape, as cylindrical, taper, square etc., all there is a problem in these traditional four-arm spiral antennas, be exactly that the working band bandwidth is narrower, usually has only 5%-8%, be difficult to cover multiple navigation system such as GPS, GLONASS and GALILEO etc., restricted the development of miniaturization helix antenna.
The utility model content
The purpose of this utility model just is to provide in order to address the above problem a kind of double-stranded square four-arm spiral antenna of high-band bandwidth.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Double-stranded square four-arm spiral antenna described in the utility model, comprise that cuboid matrix, signal input part and spirality place the radiation metal bar of described cuboid matrix surface, article four, the head end of radiation metal bar all places on the end end face of described cuboid matrix, wherein the head end of two radiation metal bars is connected with an end of described signal input part, and the head end of two other radiation metal bar is connected with the other end of described signal input part; Described radiation metal bar is the spirality metal bar.
As preferably, the screw diameter of described radiation metal bar is 1～5 millimeter; The best is 3 millimeters.
Particularly, described radiation metal bar is filled in the groove of described cuboid matrix surface.
As preferably, described radiation metal bar is copper bar or aluminum strip.
The beneficial effects of the utility model are:
The utility model makes its physical length growth several times and keeps the antenna original volume constant substantially by adopting spiral radiation metal bar, enlarged markedly the electromagnetic radiation area of radiation metal bar, improved signal transmission performance, thereby the working band bandwidth of double-stranded square four-arm spiral antenna described in the utility model is significantly improved, satisfied the high bandwidth requirement that covers many navigation systems.
Description of drawings
Fig. 1 is the stereogram of double-stranded square four-arm spiral antenna described in the utility model;
Fig. 2 is the expanded view of the cuboid matrix of double-stranded square four-arm spiral antenna described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As depicted in figs. 1 and 2, double-stranded square four-arm spiral antenna described in the utility model comprises cuboid matrix 1, signal input part 2 and spirality place the radiation metal bar on the surface of cuboid matrix 1, totally four of radiation metal bars, be respectively the first radiation metal bar 8, the second radiation metal bar 9, the 3rd radiation metal bar 10, the 4th radiation metal bar 11, article four, the head end of radiation metal bar (upper end among Fig. 1) all places on the end end face of cuboid matrix 1, wherein, the head end 4 of the first radiation metal bar 8 is connected with an end of signal input part 2 with the head end 5 of the second radiation metal bar 9, and the head end 6 of the 3rd radiation metal bar 10 is connected with the other end of signal input part 2 with the head end 7 of the 4th radiation metal bar 11; Described radiation metal bar is the spirality metal bar, and the screw diameter of described radiation metal bar is 3 millimeters.Also show the signal input line 3 that cuboid matrix 1 other end is lower end among Fig. 1 among Fig. 1, signal input line 3 passes from the inside of cuboid matrix 1.
Because spiral radiation metal bar has certain diameter, so the radiation metal bar is filled in the groove on surface of cuboid matrix 1, to reduce antenna volume; The radiation metal bar can adopt copper bar or aluminum strip.
As depicted in figs. 1 and 2, the signal that needs to send is transferred to signal input part 2 through signal input line 3, and transfer to one group of antenna element that the first radiation metal bar 8 and the second radiation metal bar 9 are formed respectively, and the 3rd one group of antenna element forming of radiation metal bar 10 and the 4th radiation metal bar 11, realize the emission of signal.
Claims (5)
1. double-stranded square four-arm spiral antenna, comprise that cuboid matrix, signal input part and spirality place the radiation metal bar of described cuboid matrix surface, article four, the head end of radiation metal bar all places on the end end face of described cuboid matrix, wherein the head end of two radiation metal bars is connected with an end of described signal input part, and the head end of two other radiation metal bar is connected with the other end of described signal input part; It is characterized in that: described radiation metal bar is the spirality metal bar.
2. double-stranded square four-arm spiral antenna according to claim 1, it is characterized in that: the screw diameter of described radiation metal bar is 1～5 millimeter.
3. double-stranded square four-arm spiral antenna according to claim 2, it is characterized in that: the screw diameter of described radiation metal bar is 3 millimeters.
4. according to claim 1,2 or 3 described double-stranded square four-arm spiral antennas, it is characterized in that: described radiation metal bar is filled in the groove of described cuboid matrix surface.
5. according to claim 1,2 or 3 described double-stranded square four-arm spiral antennas, it is characterized in that: described radiation metal bar is copper bar or aluminum strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175027 CN203180071U (en) | 2013-04-09 | 2013-04-09 | Quadrangle four-arm spiral antenna with double-spiral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320175027 CN203180071U (en) | 2013-04-09 | 2013-04-09 | Quadrangle four-arm spiral antenna with double-spiral structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180071U true CN203180071U (en) | 2013-09-04 |
Family
ID=49076731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320175027 Expired - Fee Related CN203180071U (en) | 2013-04-09 | 2013-04-09 | Quadrangle four-arm spiral antenna with double-spiral structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159424A (en) * | 2016-08-17 | 2016-11-23 | 深圳市华信天线技术有限公司 | Single/double mode hand-hold antenna and hand-held terminal device |
-
2013
- 2013-04-09 CN CN 201320175027 patent/CN203180071U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159424A (en) * | 2016-08-17 | 2016-11-23 | 深圳市华信天线技术有限公司 | Single/double mode hand-hold antenna and hand-held terminal device |
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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: 20130904 Termination date: 20140409 |