CN104681957A - Rectangular wideband circularly polarized antenna with internal rectangular groove - Google Patents
Rectangular wideband circularly polarized antenna with internal rectangular groove Download PDFInfo
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- CN104681957A CN104681957A CN201310617787.1A CN201310617787A CN104681957A CN 104681957 A CN104681957 A CN 104681957A CN 201310617787 A CN201310617787 A CN 201310617787A CN 104681957 A CN104681957 A CN 104681957A
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- circularly polarized
- rectangular
- polarized antenna
- antenna
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Abstract
The invention discloses a rectangular wideband circularly polarized antenna with an internal rectangular groove. The rectangular wideband circularly polarized antenna comprises a radiating element, a grounding surface, a dielectric substrate and a microstrip feeder line, wherein the radiating element and the microstrip feeder line are positioned at the same surface of the dielectric substrate, the grounding surface is positioned at the other surface of the dielectric substrate, one end of the microstrip feeder line is connected with a radiating patch, and the circularly polarized radiating is realized by the skilful position distribution of the radiating patch and the grounding surface at the two sides of the dielectric substrate. The rectangular wideband circularly polarized antenna has the advantages that the antenna is suitable for a wideband circularly polarized communication system, the size is small, and the integration in a printed circuit board is easy.
Description
Technical field:
The present invention relates to a kind of antenna of wireless communication technology field, in particularly a kind of, open the rectangle Broadband circularly polarized antenna of rectangular channel.
Background technology:
Not only can receive any polarized electromagnetic wave because circular polarized antenna has, and the electromagnetic wave sent by circular polarization can by advantages such as any poliarizing antenna receptions, the research of circular polarization microstrip antenna all receives the concern of experts and scholars always.Along with the development of wireless communication technology, the bandwidth of microstrip antenna becomes the principal element determining its range of application, so the research of Broadband Circular Polarization Microstrip Antenna is arisen at the historic moment
The present invention is a kind of with microstrip-fed Broadband Circular Polarization Microstrip Antenna, although this antenna can realize broadband circle polarized.
Summary of the invention:
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of microstrip-fed Broadband Circular Polarization Microstrip Antenna.The radiation characteristic of inventive antenna is better, and compact conformation, volume is little, and is easy to be integrated in printed circuit board, and can realize circular polarization radiation function in whole frequency band.
The technical solution adopted in the present invention is:
The rectangle Broadband circularly polarized antenna of rectangular channel is opened in a kind of, it is characterized in that: comprise above one piece of medium substrate medium substrate, be printed with radiating element and feed element above medium substrate, radiant element 3 is connected with one end of microstrip feed line 4, and the other end of microstrip feed line is interface.
Described a kind of in open the rectangle Broadband circularly polarized antenna of rectangular channel, it is characterized in that: antenna has rectangular patch structure, radiation patch is identical with the size and shape on ground, and radiation patch and ground plate are distributed in the both sides of medium substrate respectively, and is distributed in the both sides of microstrip feed line.
Described a kind of in open the rectangle Broadband circularly polarized antenna of rectangular channel, it is characterized in that: with the mid point of the terminal of microstrip antenna feeder line for horizontal direction x-axis, x-axis coordinate always its opposite number of the corresponding ground plane of radiation patch.
Described a kind of in open the rectangle Broadband circularly polarized antenna of rectangular channel, it is characterized in that: the groove having a rectangle on the diagonal of rectangular radiation patch.
Described a kind of in open the rectangle Broadband circularly polarized antenna of rectangular channel, it is characterized in that: by radiation patch and ground plate after the direction of principal axis symmetrical rotary of microstrip feed line, the left-handed change dextrorotation of Broadband circularly polarized antenna.
First TEM ripple is transferred to microstrip feed line by feed port by the present invention, in order to match with general transmission line impedance, microstrip feed line is 50 Ω impedances, and microstrip feed line is connected with radiant element, by transmission of electromagnetic energy to radiant element, by the outside emittance of radiant element.
The present invention compares with prior art, and its effect is actively with obvious.The present invention adopts the simple rectangular patch of structure, and the different spatial of application rectangular patch and ground plane distributes and achieves circular polarization characteristics.Antenna, for different frequencies, can obtain similar Surface current distribution, and have broadband character.This characteristic is utilized to achieve the performance of Broadband circularly polarized antenna.Adopt microstrip-fed, the bandwidth sum directional diagram that antenna can not only realize, and be easily integrated in printed circuit board.Therefore, the present invention has compact conformation, and volume is little, and is easy to be integrated in printed circuit board, has the advantage of better radiation characteristic simultaneously.The present invention meets FCC specified standard, can be used for ultra-wideband communication system.
Accompanying drawing illustrates:
Fig. 1 be the present invention a kind of in open the plan structure schematic diagram of the rectangle Broadband circularly polarized antenna of rectangular channel;
Fig. 2 be the present invention a kind of in open the end view of the rectangle Broadband circularly polarized antenna of rectangular channel;
Embodiment:
As shown in Figure 1 and Figure 2, the present invention includes: dielectric plate 1, ground plane 2, radiant element 3 and feed port 4, radiant element 3 and feed port 4 are positioned at the same surface of dielectric plate 1, and ground plane 2 is positioned at the another side of dielectric plate.And radiant element 3 is connected with one end of feed port 4.
Radiant element 3 and ground plane 2 are made up of rectangular configuration, realize antenna circular polarization characteristics by locus distribution cleverly.
Radiant element 3 and ground plane 2 have identical size and shape, and radiation patch and ground plate are distributed in the both sides of medium substrate respectively, and are distributed in the both sides of microstrip feed line.
Radiant element 3 and the corresponding position of ground plane 2 have identical rectangular channel 5, and grooving is along the diagonal of rectangular radiation patch.
Because this antenna size and thickness are all less, be easily integrated in printed circuit board.In addition, because this antenna structure simply and easily produce, so the cost of this antenna is lower.
Claims (5)
1. open the rectangle Broadband circularly polarized antenna of rectangular channel in one kind, it is characterized in that: comprise above one piece of medium substrate medium substrate, be printed with radiating element and feed element above medium substrate, radiant element 3 is connected with one end of microstrip feed line 4, and the other end of microstrip feed line is interface.
2. according to claim 1 a kind of in open the rectangle Broadband circularly polarized antenna of rectangular channel, it is characterized in that: antenna has rectangular patch structure, radiation patch is identical with the size and shape on ground, radiation patch and ground plate are distributed in the both sides of medium substrate respectively, and are distributed in the both sides of microstrip feed line.
3. according to claim 1 a kind of in open the rectangle Broadband circularly polarized antenna of rectangular channel, it is characterized in that: with the mid point of the terminal of microstrip antenna feeder line for horizontal direction x-axis, x-axis coordinate always its opposite number of the corresponding ground plane of radiation patch.
4. according to claim 1 a kind of in open the rectangle Broadband circularly polarized antenna of rectangular channel, it is characterized in that: the groove having a rectangle on the diagonal of rectangular radiation patch.
5. open the rectangle Broadband circularly polarized antenna of rectangular channel in a kind of according to claim 1,3, it is characterized in that: by radiation patch and ground plate after the direction of principal axis symmetrical rotary of microstrip feed line, the left-handed change dextrorotation of Broadband circularly polarized antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617787.1A CN104681957A (en) | 2013-11-28 | 2013-11-28 | Rectangular wideband circularly polarized antenna with internal rectangular groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617787.1A CN104681957A (en) | 2013-11-28 | 2013-11-28 | Rectangular wideband circularly polarized antenna with internal rectangular groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104681957A true CN104681957A (en) | 2015-06-03 |
Family
ID=53316722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310617787.1A Pending CN104681957A (en) | 2013-11-28 | 2013-11-28 | Rectangular wideband circularly polarized antenna with internal rectangular groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104681957A (en) |
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2013
- 2013-11-28 CN CN201310617787.1A patent/CN104681957A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |