CN205231250U - Double frequency -band high isolation microstrip antenna - Google Patents
Double frequency -band high isolation microstrip antenna Download PDFInfo
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- CN205231250U CN205231250U CN201521103352.6U CN201521103352U CN205231250U CN 205231250 U CN205231250 U CN 205231250U CN 201521103352 U CN201521103352 U CN 201521103352U CN 205231250 U CN205231250 U CN 205231250U
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Abstract
The utility model provides a double frequency -band high isolation microstrip antenna belongs to radio physics technical field, and it includes first dielectric plate, second dielectric plate, third dielectric plate, fourth dielectric plate, radiation paster, microstrip feed line, first reflection floor, H type groove, ribbon type feeder line, matching minor matters, second reflection floor, wherein, first dielectric plate, second dielectric plate, third dielectric plate, fourth dielectric plate from the top down correspond in proper order and arrange, the setting of radiation paster is on first dielectric plate, the microstrip feed line sets up the position that corresponds with the radiation paster on the second dielectric plate on, the upper surface of third dielectric plate be first reflection floor, is equipped with H type groove on it, fourth dielectric plate bottom reflects the floor for the second, fourth dielectric plate upper strata is equipped with ribbon type feeder line and matching minor matters, the utility model discloses a mode of different layers feed improves the isolation of antenna to the method on adoption double reflection floor has increased the front -to -back ratio of antenna, the back lobe that effectively reduces the antenna.
Description
Technical field
The utility model relates to Radio Physics technical field, specifically a kind of double frequency-band high-isolation microstrip antenna.
Background technology
A kind of new antenna that microstrip antenna has grown up since being 20 century 70s is gradually a kind of antenna formed with subsides on the cut-off substrate of conductor ground plate add conductor sheet.Microstrip antenna, by the feeder line such as microstrip line or coaxial line feed, has encouraged radio frequency electromagnetic field between conductor patch and ground plate, and by the gap between paster surrounding and ground plate to external radiation.
Microstrip antenna is little owing to having volume, lightweight, low section, be easy to processing and with active device and the plurality of advantages such as circuit is integrated, in communication, the aspects such as radar are widely used.In addition, the frequency spectrum resource growing tension Modern Satellite communications field has dual polarization function in the urgent need to antenna, because dual polarization can make its message capacity double.Along with the raising that development and the space technology of microwave integrated technology require low profile antenna, and wireless communication technology can simultaneously at two or more band operation to transceiver requirement.Under this background, microstrip double frequency band aerial obtains and develops rapidly.
But, usually require low-cross polarization level and high-isolation when the application of dual-polarization technique, to ensure the normal operation of microstrip antenna.Therefore, the cross polarization level produced when being necessary to apply for dual-polarization technique and band interference, design a kind of double frequency-band high-isolation microstrip antenna, to meet the demand of people.
Summary of the invention
The utility model provides a kind of double frequency-band high-isolation microstrip antenna, its double polarized micro strip antenna unit being work 16.6GHz-17.4GHz, the mode of different layers feed is adopted to improve the isolation of antenna, and adopt the method on double-deck reflection floor to add the front and back ratio of antenna, effectively reduce the back lobe of antenna.
In order to achieve the above object, the utility model proposes following technical scheme:
A kind of double frequency-band high-isolation microstrip antenna, described microstrip antenna comprises first medium plate, second medium plate, the 3rd dielectric-slab, the 4th dielectric-slab, radiation patch, microstrip-fed line, the first reflection floor, H-type groove, ribbon type feeder line, coupling minor matters, the second reflection floor; Wherein, described first medium plate, second medium plate, the 3rd dielectric-slab, the 4th dielectric-slab are corresponding in turn to arrangement from top to bottom, radiation patch is arranged on first medium plate, microstrip-fed line is arranged on position corresponding with radiation patch on second medium plate, the upper surface of the 3rd dielectric-slab is the first reflection floor, which is provided with H-type groove, the 4th dielectric-slab bottom is the second reflection floor, and the 4th dielectric-slab upper strata is provided with ribbon type feeder line and coupling minor matters.
As preferably, described first medium plate, second medium plate, the 3rd dielectric-slab, the 4th dielectric-slab adopt dielectric constant be 2.2 RogersRT/duroid5880 material.
As preferably, described first medium plate, the thickness of second medium plate are 0.381mm, and the thickness of the 3rd dielectric-slab, the 4th dielectric-slab is 0.254mm.
As preferably, described microstrip-fed line adopts 50 ohm microstrip open-circuit lines.
As preferably, the width of described H-type groove is 0.42mm, and the width of ribbon type feeder line is consistent with the width of H-type groove.
As preferably, described radiation patch is etched in the top center position of first medium plate.
The utility model compared with prior art has following benefit:
The utility model provides a kind of double frequency-band high-isolation microstrip antenna, its double polarized micro strip antenna unit being work 16.6GHz-17.4GHz, the mode of different layers feed is adopted to improve the isolation of antenna, and adopt the method on double-deck reflection floor to add the front and back ratio of antenna, effectively reduce the back lobe of antenna.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is gain direction comparison diagram of the present utility model;
In figure: 1-radiation patch, 2-first medium plate, the microstrip-fed line of 3-, 4-second medium plate, 5-H type groove, 6-first reflect floor, 7-the 3rd dielectric-slab, 8-ribbon type feeder line, 9-mate minor matters, 10-second and reflect floor, 11-the 4th dielectric-slab.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in Figure 1, described double frequency-band high-isolation microstrip antenna is made up of 4 layers of dielectric-slab, be respectively first medium plate 2, second medium plate 4, the 3rd dielectric-slab 7, the 4th dielectric-slab 11, four layers of dielectric-slab all adopt dielectric constant be 2.2 RogersRT/duroid5880 (tm) material, first medium plate 2, second medium plate 4 thickness are 0.381mm, 3rd dielectric-slab 7, the 4th dielectric-slab 11 thickness are 0.254mm, and different layers feed significantly can increase isolation.
Radiation patch 1 is etched in the top of first medium plate 2, local coupling feeding microstrip line 3 is on second medium plate 4, the first reflection floor 6 is placed between the dielectric-slab 4 and the 3rd dielectric-slab 7, H-type groove 5 is opened on the first reflection floor 6, the downside of the 3rd dielectric-slab 7 is the microstrip line by H groove couple feed, can regulate the size of H groove, improve the impedance operator of input port.
Because H groove is opened on the first reflection floor 6, stronger backward radiation can be produced, therefore, increase
4th dielectric-slab 11 and the second reflection floor 10, reduces backward radiation to reduce the back lobe of antenna with this, makes
H groove couple feed line is corresponding consistent with strip line feed 8, its width becomes 0.42mm, and on strip line feed 8, having added coupling minor matters 9 to reach the coupling of port, the width of coupling minor matters 9 is consistent with strip line feed 8, and its length adjustable reaches coupling.
The utility model provides a kind of double frequency-band high-isolation microstrip antenna, its double polarized micro strip antenna unit being work 16.6GHz-17.4GHz, the mode of different layers feed is adopted to improve the isolation of antenna, and adopt the method on double-deck reflection floor to add the front and back ratio of antenna, effectively reduce the back lobe of antenna.
Finally, above embodiment and accompanying drawing are only in order to illustrate the technical solution of the utility model and unrestricted, although by above-described embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (6)
1. a double frequency-band high-isolation microstrip antenna, is characterized in that: described double frequency-band high-isolation microstrip antenna comprises first medium plate, second medium plate, the 3rd dielectric-slab, the 4th dielectric-slab, radiation patch, microstrip-fed line, the first reflection floor, H-type groove, ribbon type feeder line, coupling minor matters, the second reflection floor; Wherein, described first medium plate, second medium plate, the 3rd dielectric-slab, the 4th dielectric-slab are corresponding in turn to arrangement from top to bottom, radiation patch is arranged on first medium plate, microstrip-fed line is arranged on position corresponding with radiation patch on second medium plate, the upper surface of the 3rd dielectric-slab is the first reflection floor, which is provided with H-type groove, the 4th dielectric-slab bottom is the second reflection floor, and the 4th dielectric-slab upper strata is provided with ribbon type feeder line and coupling minor matters.
2. a kind of double frequency-band high-isolation microstrip antenna according to claim 1, is characterized in that: described first medium plate, second medium plate, the 3rd dielectric-slab, the 4th dielectric-slab adopt dielectric constant be 2.2 RogersRT/duroid5880 material.
3. a kind of double frequency-band high-isolation microstrip antenna according to claim 1, it is characterized in that: described first medium plate, the thickness of second medium plate are 0.381mm, the thickness of the 3rd dielectric-slab, the 4th dielectric-slab is 0.254mm.
4. a kind of double frequency-band high-isolation microstrip antenna according to claim 1, is characterized in that: described microstrip-fed line adopts 50 ohm microstrip open-circuit lines.
5. a kind of double frequency-band high-isolation microstrip antenna according to claim 1, is characterized in that: the width of described H-type groove is 0.42mm, and the width of ribbon type feeder line is consistent with the width of H-type groove.
6. a kind of double frequency-band high-isolation microstrip antenna according to claim 1, is characterized in that: described radiation patch is etched in the top center position of first medium plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103352.6U CN205231250U (en) | 2015-12-28 | 2015-12-28 | Double frequency -band high isolation microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103352.6U CN205231250U (en) | 2015-12-28 | 2015-12-28 | Double frequency -band high isolation microstrip antenna |
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| Publication Number | Publication Date |
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| CN205231250U true CN205231250U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521103352.6U Expired - Fee Related CN205231250U (en) | 2015-12-28 | 2015-12-28 | Double frequency -band high isolation microstrip antenna |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207477A (en) * | 2016-09-19 | 2016-12-07 | 山东科技大学 | Lower coupling microstrip antenna |
| CN110011028A (en) * | 2018-12-29 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | A kind of antenna system, communicating terminal and base station |
| CN110571529A (en) * | 2019-09-16 | 2019-12-13 | 西安电子科技大学昆山创新研究院 | Millimeter wave ultra-wideband high-gain laminated differential antenna |
| CN114597644A (en) * | 2022-03-25 | 2022-06-07 | 常熟市泓博通讯技术股份有限公司 | 28GHz millimeter wave dual-polarized antenna and array thereof |
| CN114725670A (en) * | 2022-04-27 | 2022-07-08 | 上海应用技术大学 | Microstrip double-layer rectangular antenna structure for structural health monitoring |
-
2015
- 2015-12-28 CN CN201521103352.6U patent/CN205231250U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207477A (en) * | 2016-09-19 | 2016-12-07 | 山东科技大学 | Lower coupling microstrip antenna |
| CN106207477B (en) * | 2016-09-19 | 2018-09-04 | 山东科技大学 | Lower coupling microstrip antenna |
| CN110011028A (en) * | 2018-12-29 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | A kind of antenna system, communicating terminal and base station |
| CN110011028B (en) * | 2018-12-29 | 2020-09-18 | 瑞声科技(新加坡)有限公司 | Antenna system, communication terminal and base station |
| CN110571529A (en) * | 2019-09-16 | 2019-12-13 | 西安电子科技大学昆山创新研究院 | Millimeter wave ultra-wideband high-gain laminated differential antenna |
| CN114597644A (en) * | 2022-03-25 | 2022-06-07 | 常熟市泓博通讯技术股份有限公司 | 28GHz millimeter wave dual-polarized antenna and array thereof |
| CN114597644B (en) * | 2022-03-25 | 2024-03-29 | 常熟市泓博通讯技术股份有限公司 | 28GHz millimeter wave dual polarized antenna and array thereof |
| CN114725670A (en) * | 2022-04-27 | 2022-07-08 | 上海应用技术大学 | Microstrip double-layer rectangular antenna structure for structural health monitoring |
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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: 20160511 Termination date: 20161228 |