CN103474761A - Double-frequency caliber coupled microstrip antenna based on wave-transparent enhancement characteristic - Google Patents
Double-frequency caliber coupled microstrip antenna based on wave-transparent enhancement characteristic Download PDFInfo
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- CN103474761A CN103474761A CN2013103379655A CN201310337965A CN103474761A CN 103474761 A CN103474761 A CN 103474761A CN 2013103379655 A CN2013103379655 A CN 2013103379655A CN 201310337965 A CN201310337965 A CN 201310337965A CN 103474761 A CN103474761 A CN 103474761A
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Abstract
The invention discloses a double-frequency caliber coupled microstrip antenna based on a wave-transparent enhancement characteristic. The antenna includes a radiation substrate, a feed substrate and a fold aluminum plate, wherein a radiation patch of the antenna is printed on the radiation dielectric substrate; and a feed wire is printed on the feed dielectric substrate. The fold aluminum plate is sandwiched between the two layers of the dielectric substrates as a grounding plate of the antenna. The middle part of an E face of the aluminum plate is provided with a rectangular slit. Period grooves are symmetrically etched at the two sides of the slit. And different structural parameters meet requirements of equation 1. The double-frequency caliber coupling microstrip antenna based on the wave-transparent enhancement characteristic has the characteristics of being high in gain, narrow in wave beam and low in section and the like so that the antenna meets requirements of Ku waveband communication at a present market.
Description
Technical field
The present invention relates to Ku band communication field, be specifically related to the double frequency Aperture-coupled Microstrip Antenna of a kind of high-gain, narrow beam.
Background technology
In recent years, the wave transparent of sub-wavelength structure strengthens the concern that characteristic has been subject to people, becomes a large focus of photoelectric field research.The abnormal transmission effects that strengthens characteristic due to wave transparent has been overturned the restriction of Bethe theory fully, thereby has obtained using widely at the design field of optics.And its application study in microwave band is just at the early-stage, mainly concentrate on the design field of horn antenna at present.
2004, M.Beruete group took the lead in wave transparent is strengthened in the design that characteristic is applied to the microwave band horn antenna.They,, in the bilateral symmetry ground of horn antenna radiating aperture etched recesses, strengthen characteristic by wave transparent and introduce in the design of antenna, and the constructive gain by antenna has improved 14dB, and antenna half power lobe width is decreased to 13 °.At subsequently 2006, this group, by increasing the thickness of aluminium sheet, made horn antenna be operated in different mode, obtained dual frequency characteristics.Simultaneously, they are the groove of two groups of different cycles of etching on aluminium sheet also, designs the double frequency horn antenna of a high-gain, narrow beam.2007, they adopted in inside grooves and fill ε
γthe method of>1 dielectric material, the size of having dwindled horn antenna.
2009, the people such as Koray Aydin, by using split ring resonator (SRR, Split-Ring-Resonator), improved 3dB by the gain of horn antenna, demonstrate good effect.2011, Filiberto Bilotti group placed " two-omega " a period of time at the radiating aperture place, and the gain of antenna has been improved to 17dB.
The people such as the Cheng Huang of Chengdu photoelectricity research institute of the Chinese Academy of Sciences are by the monosymmetric etching array of horn antenna radiating aperture groove, successful reduction the HPBW of antenna, also the gain of antenna has been improved to 11dB simultaneously.2009, they designed a duplex feeding horn antenna, and the research wave transparent strengthens the impact of characteristic on the mutual coupling of antenna degree.Experiment showed, by etched recesses symmetrical between two radiating apertures, the effectively transmission of modulomenter surface plasma, and then changed the surface electric field distribution of antenna.When the gain by antenna improves 4dB, also by be reduced to-40dB of mutual coupling of antenna degree.In the same year, this seminar designs the slot antenna of a 2*8 array, wave transparent is strengthened to characteristic and high impedance structures combines, and the gain of antenna has been improved to 23.1dB, the secondary lobe of antenna and back lobe is reduced respectively to 6dB and 10dB simultaneously.
At present, experts and scholars strengthen the application study of characteristic in the horn antenna field for wave transparent both at home and abroad, have obtained many gratifying achievements, have proved that wave transparent strengthens the application potential of characteristic in field of antenna.But, because horn antenna can not meet Modern Communication System in miniaturization, specification requirement on integrated, the microstrip antenna that makes design strengthen characteristic based on wave transparent is significant.
Summary of the invention
The objective of the invention is to disclose a kind of double frequency Aperture-coupled Microstrip Antenna, introduce by wave transparent being strengthened to characteristic in the design of aperture-coupled antenna, obtain the New Microstrip Antenna of high-gain, narrow beam.
Technical scheme of the present invention is as follows:
The invention discloses a kind of double frequency Aperture-coupled Microstrip Antenna that strengthens characteristic based on wave transparent, include radiation substrate, feed substrate and double frequency fold aluminium sheet.The present invention has the characteristics such as high-gain, narrow beam, low section, meets the specification requirement of Ku band communication system to dual-band antenna in the market.
The double frequency Aperture-coupled Microstrip Antenna based on wave transparent enhancing characteristic the invention discloses, include radiation substrate, feed substrate and double frequency fold aluminium sheet.Wherein, on the top medium substrate, print radiating element, be called the radiation medium substrate; Bottom dielectric substrate printed feed line, be called the feed dielectric substrate.Be sandwiched in two blocks of double frequency fold aluminium sheets in the middle of parallel medium substrate and play the effect on floor.
Secondly, the radiation patch on described radiation substrate is square-shaped metal, and etching S shape gap on metal, in order to obtain dual frequency characteristics.Described double frequency fold aluminium sheet is opened long and narrow crack in E face center, makes electromagnetic field to be coupled into radiation patch by feed line; Perpendicular to two groups of periodic grooves of E face direction etching, making can be modulated at the electromagnetic field of E face.The periodic grooves of etching on this fold aluminium sheet, its structural parameters meet the empirical equation that the present invention proposes.
The accompanying drawing explanation
For clearer explanation embodiments of the invention, in below describing embodiment, the accompanying drawing of required use is done some simple introductions.Below describe the just one embodiment of the present of invention that relate in accompanying drawing, for one of ordinary skill in the art, according to thought of the present invention, under the prerequisite of not paying any creative work, can obtain different embodiments according to these accompanying drawings.
A kind of double frequency Aperture-coupled Microstrip Antenna of Fig. 1 embodiments of the invention structural representation;
A kind of double frequency Aperture-coupled Microstrip Antenna of Fig. 2 embodiments of the invention radiation patch schematic diagram;
Double frequency fold aluminium sheet vertical view (a) and front view (b) in Fig. 3 embodiments of the invention;
Fig. 4 embodiments of the invention double frequency Aperture-coupled Microstrip Antenna S11 curve chart;
Traditional Aperture-coupled Microstrip Antenna of Fig. 5 embodiments of the invention double frequency Aperture-coupled Microstrip Antenna far-field pattern and the contrast embodiment of the present invention is at the emulation of 13GHz place and actual measurement directional diagram;
Traditional Aperture-coupled Microstrip Antenna of Fig. 6 embodiments of the invention double frequency Aperture-coupled Microstrip Antenna far-field pattern and the contrast embodiment of the present invention is at the emulation of 16.5GHz place and actual measurement directional diagram.
Embodiment
Hereinafter, now with reference to accompanying drawing, the present invention is described more fully, various embodiment shown in the drawings.Yet the present invention can implement in many different forms, and should not be interpreted as being confined to embodiment set forth herein.On the contrary, it will be thorough with completely providing these embodiment to make the disclosure, and scope of the present invention is conveyed to those skilled in the art fully.
Below in conjunction with accompanying drawing, a kind of embodiment of the present invention is described in detail, embodiment is:
A kind of double frequency Aperture-coupled Microstrip Antenna of the embodiment of the present invention can, referring to accompanying drawing 1, include radiation substrate, feed substrate and double frequency fold aluminium sheet.Wherein, on the top medium substrate, print radiating element, be called radiation substrate; Bottom dielectric substrate printed feed line, be called the feed substrate.Be sandwiched in two blocks of double frequency fold aluminium sheets in the middle of parallel medium substrate and play the effect on floor.
Fig. 2 is a kind of double frequency Aperture-coupled Microstrip Antenna of embodiments of the invention radiation patch schematic diagram.Radiation patch on radiation substrate is square-shaped metal, and etching S shape gap on metal, in order to obtain dual frequency characteristics.
The structural representation that Fig. 3 is described fold aluminium sheet.Described fold aluminium sheet is opened long and narrow crack in E face center, makes electromagnetic field to be coupled into radiation patch by feed line; Perpendicular to two groups of periodic grooves of E face direction etching, making can be modulated at the electromagnetic field of E face.The structural parameters of two groups of grooves meet the empirical equation 1 that the present invention proposes.
The S11 curve synoptic diagram that Fig. 4 is a kind of double frequency Aperture-coupled Microstrip Antenna of embodiments of the invention.As seen from the figure, antenna, at all be less than-15dB of the S11 at 13GHz, 16.5GHz place, meets the requirement of engineering of Ku band communication fully.Fig. 5, Fig. 6 are respectively traditional Aperture-coupled Microstrip Antenna of embodiments of the invention double frequency Aperture-coupled Microstrip Antenna and the contrast embodiment of the present invention at 13GHz and 16.5GHz place directional diagram.As seen from the figure, the gain of traditional dual-band antenna at the 13GHz place is 5.7dB, and the HPBW of E face, H face is respectively 160 °, 65 °.And the gain of Novel double-frequency antenna at the 13GHz place increased 4.4dB, reach 10.1dB; E face, H face HPBW have reduced respectively 135 °, 10 °, are reduced to 25 °, 55 °.As seen from Figure 5, the gain of traditional dual-band antenna at the 16.5GHz place is 5.4dB, and the HPBW of E face, H face is respectively 175 °, 90 °; And the gain of Novel double-frequency antenna at the 16.5GHz place increased 5.6dB, reach 11.0dB; E face, H face HPBW have reduced respectively 150 °, 30 °, are reduced to 25 °, 60 °.The present invention has high-gain, narrow beam, volume is little, section is low, etc. characteristics, meet Ku band communication requirement in the market.
Above to the present invention disclosed a kind of double frequency Aperture-coupled Microstrip Antenna that strengthens characteristic based on wave transparent, be described in detail, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications.In sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. a double frequency Aperture-coupled Microstrip Antenna that strengthens characteristic based on wave transparent, it is characterized in that: the double frequency Aperture-coupled Microstrip Antenna is comprised of two parallel medium substrates and double frequency fold aluminium sheet, and described two parallel medium substrates are respectively radiation substrate and feed substrate.
2. the double frequency Aperture-coupled Microstrip Antenna that strengthens characteristic based on wave transparent according to claim 1, it is characterized in that: double frequency fold aluminium sheet is between radiation substrate and feed substrate, and double frequency fold aluminium sheet plays a part floor.
3. the double frequency Aperture-coupled Microstrip Antenna that strengthens characteristic based on wave transparent according to claim 1 is characterized in that: described double frequency fold aluminium sheet is perpendicular to two groups of periodic grooves of the symmetrical etching of E face direction, and making can be modulated at the electromagnetic field of E face.
4. according to the described double frequency Aperture-coupled Microstrip Antenna that strengthens characteristic based on wave transparent of claim 1-3 any one, it is characterized in that: the structural parameters of described double frequency fold aluminium sheet institute etched recesses meet following empirical equation:
。
5. the double frequency Aperture-coupled Microstrip Antenna that strengthens characteristic based on wave transparent according to claim 4, it is characterized in that: the radiation patch on described radiation substrate is square-shaped metal, etching S shape gap on metal, in order to obtain dual frequency characteristics.
6. the double frequency Aperture-coupled Microstrip Antenna that strengthens characteristic based on wave transparent according to claim 5, it is characterized in that: described fold aluminium sheet is opened long and narrow crack in E face center, makes electromagnetic field to be coupled into radiation patch by feed line.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375107A (en) * | 2015-11-26 | 2016-03-02 | 厦门大学 | Four-slot interdigital coupling tuning type microstrip antenna |
| CN105428782A (en) * | 2016-01-04 | 2016-03-23 | 张家港保税区灿勤科技有限公司 | All-in-one antenna |
| CN105958207A (en) * | 2016-07-06 | 2016-09-21 | 安徽大学 | Multilayered structure and transmission enhancement phenomenon based dual-frequency high-gain waveguide slot antenna |
| CN108432049A (en) * | 2015-06-16 | 2018-08-21 | 阿卜杜拉阿齐兹国王科技城 | Effective planar phased array array antenna component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546867A (en) * | 2009-03-03 | 2009-09-30 | 东南大学 | High-gain low-profile null feed array antenna |
| CN101764286A (en) * | 2010-02-10 | 2010-06-30 | 东南大学 | Rectangular microstrip patch antenna |
| CN202930549U (en) * | 2012-10-27 | 2013-05-08 | 合肥安大电子检测技术有限公司 | Novel aperture coupled microstrip antenna based on radome enhancement phenomenon |
-
2013
- 2013-08-05 CN CN2013103379655A patent/CN103474761A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546867A (en) * | 2009-03-03 | 2009-09-30 | 东南大学 | High-gain low-profile null feed array antenna |
| CN101764286A (en) * | 2010-02-10 | 2010-06-30 | 东南大学 | Rectangular microstrip patch antenna |
| CN202930549U (en) * | 2012-10-27 | 2013-05-08 | 合肥安大电子检测技术有限公司 | Novel aperture coupled microstrip antenna based on radome enhancement phenomenon |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108432049A (en) * | 2015-06-16 | 2018-08-21 | 阿卜杜拉阿齐兹国王科技城 | Effective planar phased array array antenna component |
| CN105375107A (en) * | 2015-11-26 | 2016-03-02 | 厦门大学 | Four-slot interdigital coupling tuning type microstrip antenna |
| CN105375107B (en) * | 2015-11-26 | 2017-11-07 | 厦门大学 | The interdigital coupling tuning type microstrip antenna in four gaps |
| CN105428782A (en) * | 2016-01-04 | 2016-03-23 | 张家港保税区灿勤科技有限公司 | All-in-one antenna |
| CN105958207A (en) * | 2016-07-06 | 2016-09-21 | 安徽大学 | Multilayered structure and transmission enhancement phenomenon based dual-frequency high-gain waveguide slot antenna |
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Application publication date: 20131225 |