CN207459163U - A kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds - Google Patents
A kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds Download PDFInfo
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- CN207459163U CN207459163U CN201721478801.4U CN201721478801U CN207459163U CN 207459163 U CN207459163 U CN 207459163U CN 201721478801 U CN201721478801 U CN 201721478801U CN 207459163 U CN207459163 U CN 207459163U
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Abstract
The utility model proposes a kind of Small-sized C PW to feed wide axial ratio bandwidth circular polarized antenna, and the antenna includes CPW feeding networks, radiation patch and earth plate；A notched straight-flanked ring surrounded with electric conductor is equipped at the earth plate；CPW feeding networks and radiation patch are set at the earth plate in straight-flanked ring；The CPW feeding networks include the T-shaped radiator of impedance matching；T-shaped radiator vertical edge is connected through straight-flanked ring notch with signal wire；One end and the L-shaped conductor piece of straight-flanked ring vertical edge short circuit are equipped with above T-shaped radiator horizontal edge；L-shaped conductor piece is located at T-shaped radiator vertical edge one side and L-shaped long side is parallel with T-shaped radiator horizontal edge, and be arranged in parallel a short rectangular conductor piece above L-shaped conductor piece long side, described short rectangular conductor piece one end and straight-flanked ring vertical edge short circuit；The utility model has wide axial ratio bandwidth, wide impedance bandwidth, a performance advantage of excellent circular polarisation, simple in structure, size is compact, is easy to make, suitable for wireless communication system.
Description
Technical field
The utility model is related to wireless communication technology field, especially a kind of wide axial ratio bandwidth circular polarisation of Small-sized C PW feeds
Antenna.
Background technology
In recent years, new broad-band antenna, quickly grows, and important characteristic is broadband, a wide range of covering.This kind of day
The problem of line is mainly used to make up narrow-band antenna narrower bandwidth and be able to propose and develop, in a wireless communication system, in order to
Realization integrates with other communication equipments, antenna is made to simultaneously work in a variety of situations, therefore miniaturization and the broadband of antenna
Become the hot spot of research；The noiseproof feature of antenna determines that antenna must possess the features such as broadband, small, to reduce
Interference improves communication quality.
Broadband antenna design applied to wireless communication should meet corresponding requirement according to actual needs.In broadband connections system
In system, the minimizing of antenna, low cost, manufacture difficulty is small, the features such as being easily integrated also becomes evaluation antenna practicability and sexual valence
The important indicator of ratio.
The feeding classification of coplanar wave guide feedback cause antenna radiation patch and earth plate in the same plane, so can be with
Effectively reduce the size of antenna.The broad-band antenna of coplanar wave guide feedback has bandwidth more broader than microstrip antenna, relatively stable
Directionality the advantages that；Moreover, the antenna processing and debugging of coplanar wave guide feedback are convenient, are easily integrated so that it becomes broadband
Antenna is studied and selection good in application.
The content of the invention
The utility model proposes a kind of Small-sized C PW to feed wide axial ratio bandwidth circular polarized antenna, has wide axial ratio bandwidth, wide resistance
The performance advantage of anti-bandwidth, excellent circular polarisation, it is simple in structure, size is compact, is easy to make, suitable for wireless communication system.
The utility model uses following technical scheme.
A kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds, can realize co-planar waveguide（CPW）The miniaturization of antenna,
The antenna includes CPW feeding networks, radiation patch and earth plate；It is lacked at the earth plate equipped with a band surrounded with electric conductor
The straight-flanked ring of mouth；CPW feeding networks and radiation patch are set at the earth plate in straight-flanked ring；The CPW feeding networks include resistance
Resist matched T-shaped radiator；T-shaped radiator vertical edge is connected through straight-flanked ring notch with signal wire；It is equipped with above T-shaped radiator horizontal edge
One end and the L-shaped conductor piece of straight-flanked ring vertical edge short circuit；L-shaped conductor piece is located at T-shaped radiator vertical edge one side and L-shaped long side and T-shaped
Radiator horizontal edge is parallel, and be arranged in parallel above L-shaped conductor piece long side a short rectangular conductor piece, described short rectangular conductor piece one end with
Straight-flanked ring vertical edge short circuit.
The horizontal edge Length discrepancy of the T-shaped radiator vertical edge both sides, L-shaped conductor piece are located above the longer one side of T-shaped horizontal edge；
The L-shaped conductor piece and the tuning detail that short rectangular conductor piece is antenna.
The radiation patch is a rectangular conductor piece；Radiation patch is located above the shorter one side of T-shaped horizontal edge.
The radiation patch is not connected with straight-flanked ring.
Two isometric wide CPW feed gaps are formed between the vertical edge of the T-shaped radiator and straight-flanked ring notch；CPW
Feed gaps are located at below earth plate.
The antenna further includes medium substrate；The medium substrate is epoxy resin board.
The signal wire being connected with T-shaped radiator vertical edge is connected with coaxial probe, and signal wire is presented with coaxial probe
Electricity.
The utility model can excite circularly polarised wave, realize antenna by adjusting radiation patch, tuning each parameter value of detail
Circular polarisation widens axial ratio bandwidth.
For the utility model by adjusting earth plate, each parameter value of CPW feeding networks, the impedance adjustable section of antenna is 50 Europe
Nurse realizes antenna and the matching of input terminal coaxial feed port, so as to fulfill wide impedance bandwidth.
Compared to existing antenna product, the utility model size reduces 20%, realizes miniaturization.
The utility model is simple in structure, size is compact, is easy to make, and suitable for wireless communication system, there is wide application
Prospect.
Description of the drawings
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model：
Attached drawing 1 is the structure diagram of this product；
Attached drawing 2 is another schematic diagram of this product；
Attached drawing 3 is the reflectance factor simulation result of this product；
Attached drawing 4 is the Circular polarization ratio bandwidth simulation result of this product；
Attached drawing 5 be this product XOZ faces directional diagram；
In figure：1- antennas；10- medium substrates；21-T shape radiators；22-CPW feed gaps；30- radiation patch；40- connects
Floor；41-L shape conductor pieces（L-type tunes detail）；The short rectangular conductor pieces of 42-（The humorous detail of horizontal direction minor）；101- rectangles
Ring；102- straight-flanked ring notches.
Specific embodiment
As shown in Figs. 1-5, a kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds, can realize co-planar waveguide（CPW）My god
The miniaturization of line, the antenna 1 include CPW feeding networks, radiation patch 30 and earth plate 40；At the earth plate be equipped with one with
The notched straight-flanked ring 101 that electric conductor surrounds；CPW feeding networks and radiation is set to paste at earth plate 40 in straight-flanked ring 101
Piece 30；The CPW feeding networks include the T-shaped radiator 21 of impedance matching；21 vertical edge of T-shaped radiator is through straight-flanked ring notch 102
It is connected with signal wire；One end and the L-shaped conductor piece 41 of straight-flanked ring vertical edge short circuit are equipped with above T-shaped radiator horizontal edge；L-shaped conductor piece
Positioned at T-shaped radiator vertical edge one side and L-shaped long side it is parallel with 21 horizontal edge of T-shaped radiator, be arranged in parallel above L-shaped conductor piece long side
One short rectangular conductor piece 42, described short 42 one end of rectangular conductor piece and 101 vertical edge short circuit of straight-flanked ring.
The horizontal edge Length discrepancy of the T-shaped radiator vertical edge both sides, L-shaped conductor piece are located above the longer one side of T-shaped horizontal edge；
The L-shaped conductor piece and the tuning detail that short rectangular conductor piece is antenna.
The radiation patch is a rectangular conductor piece；Radiation patch is located above the shorter one side of T-shaped horizontal edge.
The radiation patch is not connected with straight-flanked ring.
Two isometric wide CPW feed gaps are formed between the vertical edge of the T-shaped radiator and straight-flanked ring notch；CPW
Feed gaps are located at below earth plate.
The antenna further includes medium substrate 10；The medium substrate is epoxy resin board.
The signal wire being connected with T-shaped radiator vertical edge is connected with coaxial probe, and signal wire is presented with coaxial probe
Electricity.
Embodiment 1：
Radiation patch 30, tuning 41 and 42 each parameter value of detail are adjusted, circularly polarised wave can be excited, realize the entelechy of antenna
Change, widen axial ratio bandwidth.
Embodiment 2：
Earth plate 40, each parameter value of CPW feeding networks are adjusted, the impedance adjustable section of antenna is 50 ohm, antenna and input
The matching of coaxial feed port is held, so as to fulfill wide impedance bandwidth.
Embodiment 3：
As in Figure 3-5, the reflectance factor of the wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds, the wide axis of Small-sized C PW feeds
Than the Circular polarization ratio of bandwidth circular polarized antenna；The wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds is in the radiation side of XOZ planes
To figure in the approximate figure of eight, and antenna shows stable radiation direction characteristic at frequency point.
Embodiment 4：
Antenna in embodiment 3, ground connection plate thickness are 0.6mm, and the straight-flanked ring on earth plate is the annulus of positive rectangle, ring
Outer per the length of side be 80mm, it is interior along every length of side be 60mm, CPW feed gaps width be 2mm；
The vertical edge of T-shaped radiation fin, the cross-sectional width of horizontal edge are 4mm；Using T-shaped radiation fin vertical edge as boundary, T-shaped radiation fin
The length of the longer one side of horizontal edge is 21mm, and the length of shorter one side is 17mm；T-shaped radiation fin horizontal edge and straight-flanked ring notch side away from
From for 4mm；
The distance of L-shaped conductor piece, radiation patch and straight-flanked ring notch side is 13mm；Each position of L-shaped conductor piece it is transversal
Face width is 7mm, and the long edge lengths of L-shaped conductor piece are 27mm, and the bond length of L-shaped conductor piece is 13mm；Radiation patch
A length of 15mm and width are 15mm；
Short rectangular conductor piece 42（The humorous detail of horizontal direction minor）Long back gauge away from L-shaped conductor piece be 17mm, short rectangle
The length and width of conductor piece 42 are 6mm.
Claims (7)
1. a kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds, can realize co-planar waveguide（CPW）The miniaturization of antenna,
It is characterized in that：The antenna includes CPW feeding networks, radiation patch and earth plate；One is equipped at the earth plate with electric conductor
The notched straight-flanked ring surrounded；CPW feeding networks and radiation patch are set at the earth plate in straight-flanked ring；The CPW feeds
Network includes the T-shaped radiator of impedance matching；T-shaped radiator vertical edge is connected through straight-flanked ring notch with signal wire；T-shaped radiator is horizontal
One end and the L-shaped conductor piece of straight-flanked ring vertical edge short circuit are equipped with above side；L-shaped conductor piece is located at T-shaped radiator vertical edge one side and L-shaped
Long side is parallel with T-shaped radiator horizontal edge, and be arranged in parallel a short rectangular conductor piece above L-shaped conductor piece long side, and the short rectangle is led
Body piece one end and straight-flanked ring vertical edge short circuit.
2. a kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds according to claim 1, it is characterised in that：The T
The horizontal edge Length discrepancy of shape radiator vertical edge both sides, L-shaped conductor piece are located above the longer one side of T-shaped horizontal edge；The L-shaped conductor piece
It is the tuning detail of antenna with short rectangular conductor piece.
3. a kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds according to claim 2, it is characterised in that：It is described
Radiation patch is a rectangular conductor piece；Radiation patch is located above the shorter one side of T-shaped horizontal edge.
4. a kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds according to claim 3, it is characterised in that：It is described
Radiation patch is not connected with straight-flanked ring.
5. a kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds according to claim 1, it is characterised in that：The T
Two isometric wide CPW feed gaps are formed between the vertical edge of shape radiator and straight-flanked ring notch；CPW feed gaps, which are located at, to be connect
Below floor.
6. a kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds according to claim 1, it is characterised in that：It is described
Antenna further includes medium substrate；The medium substrate is epoxy resin board.
7. a kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds according to claim 1, it is characterised in that：It is described
The signal wire being connected with T-shaped radiator vertical edge is connected with coaxial probe, and signal wire is fed with coaxial probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721478801.4U CN207459163U (en) | 2017-11-08 | 2017-11-08 | A kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721478801.4U CN207459163U (en) | 2017-11-08 | 2017-11-08 | A kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds |
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| Publication Number | Publication Date |
|---|---|
| CN207459163U true CN207459163U (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721478801.4U Active CN207459163U (en) | 2017-11-08 | 2017-11-08 | A kind of wide axial ratio bandwidth circular polarized antenna of Small-sized C PW feeds |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658552A (en) * | 2017-11-08 | 2018-02-02 | 福州大学 | A kind of Small-sized C PW feeds wide axial ratio bandwidth circular polarized antenna |
| CN109599671A (en) * | 2018-11-22 | 2019-04-09 | 北京遥感设备研究所 | A kind of coplanar wave guide feedback Dual-band circular polarization antenna |
| CN113067137A (en) * | 2021-03-15 | 2021-07-02 | 歌尔科技有限公司 | Wireless communication terminal and circularly polarized antenna |
| CN113675600A (en) * | 2021-08-26 | 2021-11-19 | 安徽师范大学 | Circularly polarized antenna working in Beidou, GPS and 5G frequency bands |
-
2017
- 2017-11-08 CN CN201721478801.4U patent/CN207459163U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658552A (en) * | 2017-11-08 | 2018-02-02 | 福州大学 | A kind of Small-sized C PW feeds wide axial ratio bandwidth circular polarized antenna |
| CN109599671A (en) * | 2018-11-22 | 2019-04-09 | 北京遥感设备研究所 | A kind of coplanar wave guide feedback Dual-band circular polarization antenna |
| CN113067137A (en) * | 2021-03-15 | 2021-07-02 | 歌尔科技有限公司 | Wireless communication terminal and circularly polarized antenna |
| CN113675600A (en) * | 2021-08-26 | 2021-11-19 | 安徽师范大学 | Circularly polarized antenna working in Beidou, GPS and 5G frequency bands |
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