CN103280624A - Patch antenna - Google Patents
Patch antenna Download PDFInfo
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- CN103280624A CN103280624A CN2013101209791A CN201310120979A CN103280624A CN 103280624 A CN103280624 A CN 103280624A CN 2013101209791 A CN2013101209791 A CN 2013101209791A CN 201310120979 A CN201310120979 A CN 201310120979A CN 103280624 A CN103280624 A CN 103280624A
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Abstract
The invention relates to a patch antenna, which comprises a dielectric substrate (1) and a microstrip patch (2), wherein four radiating grooves (3, 4, 5 and 6) are respectively arranged on a surface of the microstrip patch (2) along diagonal positions of the dielectric substrate (1), and are distributed in a cross shape; four feeding points (7, 8, 9 and 10) are arranged on the microstrip patch (2); two feeding points are respectively arranged on a horizontal geometric center line and a longitudinal geometric center line; and the four feeding points (7, 8, 9 and 10) are symmetrical to a geometric center of the microstrip patch (2), and are provided with feeder lines for feeding. The patch antenna has wider impedance bandwidth and axial ratio bandwidth, and higher gain; the miniaturization of a structural dimension can be realized; and the stability performance of a phase center is better. According to the patch antenna, not only are the impedance bandwidth and the axial ratio bandwidth of the patch antenna greatly improved, but also favorable circular polarization performance and miniaturization effect are achieved, and the patch antenna is particularly suitable for an accurate measurement type navigation terminal.
Description
Technical field
The present invention is a kind of paster antenna, and the particularly microstrip antenna in satellite navigation field especially is applied to the dual-band antenna of high-acruracy survey type satellite navigation receiving terminal, belongs to the innovative technology of paster antenna.
Background technology
Along with the continuous development of satellite navigation and measuring technique, satellite navigation and location system has also obtained increasingly extensive development and application.At present, the existing a plurality of countries in the whole world have set up the satellite navigation and location system of oneself, as dipper system, GPS of USA system, Muscovite GLONASS system and the European GALILEO system of China.Along with the continuous maturation of these satellite systems and deepening constantly of civil nature process, as the high-performance receiving equipment of one of GNSS key technology---satellite navigation system terminal measurement type antenna has become the hot spot technology that people receive much attention.Because microstrip antenna has that shape is little, cost is low, easily conformal, easily processing and realize advantage such as circular polarization easily, is widely used in the satellite navigation field.But there is the shortcoming of bandwidth of operation and circular polarization axial ratio bandwidth narrower (representative value 1%-3%) in general micro-strip paster antenna, is not suitable for being applied to the accurately dual-frequency navigation antenna of measurement.Though by reducing the dielectric constant of high frequency material, its bandwidth of operation is widened to some extent, the amount of widening is very limited, and the increase of the substrate thickness of micro-strip paster antenna, causes antenna volume to increase, and is unfavorable for the miniaturization of microstrip antenna.Feature according to GNSS positioning principle and satellite-signal thereof, for realize receiver rapidly, continuously, accurate location, GNSS double frequency Microstrip Receiving Antenna has been proposed very high requirement: high performance measurement type antenna also will possess characteristics such as good, the anti-multipath effect of low elevation signals receiving ability is good simultaneously.Though at present the GNSS double frequency receives the microstrip antenna technology and has been tending towards ripe, how in volume-diminished, increase substantially frequency bandwidth and the axial ratio bandwidth of paster antenna, still be the design difficulty of double frequency satellite navigation receiver antenna.
Summary of the invention
The objective of the invention is to consider the problems referred to above and provide a kind of impedance bandwidth and axial ratio bandwidth is wideer, higher, the physical dimension miniaturization of gain and phase center stability paster antenna preferably.The present invention has not only significantly improved impedance bandwidth and the axial ratio bandwidth of paster antenna, and shows good circular polarization performance and miniaturization effect, is particularly suitable for accurately measuring the type navigation terminal.
Technical scheme of the present invention is: paster antenna of the present invention, comprise medium substrate and microband paste, the surface of microband paste is respectively equipped with four radius along the diagonal positions of medium substrate, article four, radius is crossing distribution, and microband paste is provided with four distributing points, wherein laterally on the geometric center lines and be respectively equipped with two distributing points on vertical geometric center lines, four distributing points are symmetrical in the geometric center of microband paste, and the distributing point place is provided with feed line and carries out feed.
Above-mentioned four radius are four rectangular channels that size and dimension is identical, are crossing distribution.
The geometric center place of above-mentioned microband paste is provided with the short circuit nail with tuning and fixation.
The present invention has realized broadband, the miniaturization of double-frequency micro-strip antenna owing to adopt the surface to open the structure of cross radius.The present invention has overcome problems such as general micro-strip paster antenna frequency band is narrow, volume big, structure is not compact, has the advantage that is suitable as high-acruracy survey type micro-strip paster antenna concurrently.Has important reference and use value for the satellite navigation system GNSS dual-band antenna that improves a kind of accurate measurement type.Compare with existing general paster antenna, the present invention has following advantage:
1) the designed novel paster antenna of the present invention adopts the surface to open the structure of cross radius, the bandwidth of operation of paster antenna significantly improves, bandwidth can arrive 10%, and compare bandwidth to have improved twice many with the paster antenna of generally not slotting, and has realized the wide band advantage of microstrip antenna.
2) size of cross radius also can be used for regulating the resonance frequency, has increased the product design degree of freedom, has reduced manufacturing and material tolerances susceptibility.
3) add the rectangle sawtooth around the microband paste, be convenient to the fine setting of antenna, be easy to processing and debugging.Increase the product design degree of freedom, reduced manufacturing and material tolerances susceptibility.
4) after the present invention was provided with cross bath, patch size obviously descended, and compared with the general paster antenna of same frequency, and patch size dwindles 10～30%.
5) the present invention adopts axisymmetric 4 coaxial feed modes, guarantees that the phase center of antenna is stable, realizes right-handed circular polarization simultaneously easily.
6) dielectric layer do not introduce other layers have simple in structure, be easy to processing, advantage such as cost is lower.
7) the designed novel paster antenna of the present invention adopts the surface to open the structure of cross radius, can be designed to double frequency measurement type antenna in conjunction with traditional microband paste, is particularly suitable for accurately measuring the type navigation terminal.
The present invention is that a kind of design is ingenious, function admirable, convenient and practical paster antenna.
Description of drawings
Fig. 1 is the agent structure schematic diagram of the surface of the present invention novel paster antenna of driving the cross radius.
Fig. 2 is the vertical view that the novel paster antenna of cross radius is opened on surface of the present invention.
Fig. 3 is the end view that the novel paster antenna of cross radius is opened on surface of the present invention.
Fig. 4 is the impedance bandwidth curve of the surface of the present invention novel paster antenna of driving the cross radius.
Fig. 5 be the surface of the present invention novel paster antenna of driving the cross radius for the azimuth is 0 degree, incidence angle is 0 (Phi=0 is in the time of Theta=0 °) gain curve when spending.
Fig. 6 be the surface of the present invention novel paster antenna of driving the cross radius for the azimuth be that 0 degree is axial ratio curve among the centre frequency 1227MH time.
Embodiment
Embodiment:
Structural representation of the present invention such as Fig. 1,2, shown in 3, paster antenna of the present invention, comprise medium substrate 1 and microband paste 2, the surface of microband paste 2 is respectively equipped with four radius 3 along the diagonal positions of medium substrate 1,4,5,6, article four, radius 3,4,5,6 are crossing distribution, and microband paste 2 is provided with four distributing points 7,8,9,10, wherein reach on vertical geometric center lines on the horizontal geometric center lines and be respectively equipped with two distributing points, four distributing points 7,8,9,10 are symmetrical in the geometric center of microband paste 2, and the distributing point place is provided with feed line and carries out feed.Paster antenna of the present invention is owing to adopt the structural design that is provided with the radius that is crossing distribution and is provided with four distributing points, significantly broadening bandwidth of operation and the axial ratio bandwidth of antenna, and compare with the double frequency round polarized antenna of routine, the overall dimensions of this paster antenna obviously dwindles, in addition, owing in the middle of substrate, do not introduce other dielectric layer, so have compact conformation, be easy to characteristics such as processing.And the present invention makes antenna obtain a stable phase center along the set radius that is crossing distribution of diagonal, and then realizes high-acruracy survey,
In the present embodiment, above-mentioned four radius 3,4,5,6 are four rectangular channels that size and dimension is identical.The rectangular radiation groove 3,4,5 that four shapes are identical, 6 is owing to adopt the structure that is crossing distribution, play a kind of meander effect, increased the equivalent inductance of resonant tank, institute so that resonance frequency obviously descend, thereby dwindled the paster area and will improve the performances such as impedance bandwidth, axial ratio bandwidth of paster antenna.
Above-mentioned feed line adopts coaxial probe.In the present embodiment, it is the coaxial probe of 50 Ω that above-mentioned coaxial probe adopts characteristic impedance.Characteristic impedance that to be the present invention at the distributing point place adopt is that the coaxial probe of 50 Ω carries out feed.
In the present embodiment, the geometric center place of above-mentioned microband paste 2 is provided with the short circuit nail 11 with tuning and fixation, and short circuit nail 11 has the surface wave of inhibition and the fixedly effect of paster.
In addition, for the ease of the debugging of relevant parameter, four borders of above-mentioned microband paste 2 are respectively equipped with square sawtooth 12.
Performance parameters such as the impedance bandwidth of micro-strip paster antenna of the present invention, axial ratio bandwidth, gain and phase center stability are all better, are particularly suitable for the low-frequency range antenna as accurately measurement type of double frequency antenna.
Claims (3)
1. paster antenna, it is characterized in that comprising medium substrate (1) and microband paste (2), the surface of microband paste (2) is respectively equipped with four radius (3 along the diagonal positions of medium substrate (1), 4,5,6), article four, radius (3,4,5,6) be crossing distribution, and microband paste (2) is provided with four distributing points (7,8,9,10), wherein reach on vertical geometric center lines on the horizontal geometric center lines and be respectively equipped with two distributing points, four distributing points (7,8,9,10) be symmetrical in the geometric center of microband paste (2), and the distributing point place is provided with feed line and carries out feed.
2. paster antenna according to claim 1 is characterized in that above-mentioned four radius (3,4,5,6) are four rectangular channels that size and dimension is identical, is crossing distribution.
3. paster antenna according to claim 1 and 2 is characterized in that the geometric center place of above-mentioned microband paste (2) is provided with the short circuit nail (11) with tuning and fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101209791A CN103280624A (en) | 2013-04-09 | 2013-04-09 | Patch antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101209791A CN103280624A (en) | 2013-04-09 | 2013-04-09 | Patch antenna |
Publications (1)
| Publication Number | Publication Date |
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| CN103280624A true CN103280624A (en) | 2013-09-04 |
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Family Applications (1)
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| CN2013101209791A Pending CN103280624A (en) | 2013-04-09 | 2013-04-09 | Patch antenna |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500879A (en) * | 2013-10-16 | 2014-01-08 | 厦门大学 | Bridging type dual-frequency microstrip antenna with interdigital coupling control |
| CN103794876A (en) * | 2014-01-18 | 2014-05-14 | 中国计量学院 | Windmill-shaped back bowknot opening groove microstrip antenna |
| CN103794872A (en) * | 2014-01-03 | 2014-05-14 | 西安电子科技大学 | Super-miniature Beidou navigation antenna based on broadband short circuit loading structure |
| CN103840269A (en) * | 2013-12-25 | 2014-06-04 | 西安电子科技大学 | Wide-band, miniaturized and wide-beam multi-mode satellite navigation antenna |
| CN104635244A (en) * | 2015-02-03 | 2015-05-20 | 芜湖航飞科技股份有限公司 | Anti-interference antenna on satellite navigation receiver |
| CN104795639A (en) * | 2015-05-14 | 2015-07-22 | 桂林电子科技大学 | Compact circular polarization microstrip antenna and antenna array consisting of compact circular polarization microstrip antenna |
| CN104901005A (en) * | 2015-06-11 | 2015-09-09 | 广东工业大学 | Miniature double-frequency broadband circular polarization paster antenna |
| CN107069188A (en) * | 2016-12-29 | 2017-08-18 | 北京遥测技术研究所 | Low section high efficiency dual polarized panel antennas |
| CN108428997A (en) * | 2018-01-17 | 2018-08-21 | 深圳市华信天线技术有限公司 | Broadband plane antenna |
| CN111262005A (en) * | 2020-01-16 | 2020-06-09 | 广东工业大学 | Dual-polarized broadband magnetoelectric dipole antenna unit suitable for 5G base station and antenna array |
Citations (4)
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| US5202697A (en) * | 1991-01-18 | 1993-04-13 | Cubic Defense Systems, Inc. | Low-profile steerable cardioid antenna |
| US20040070536A1 (en) * | 2002-10-11 | 2004-04-15 | Stotler Monte S. | Compact conformal patch antenna |
| CN2872625Y (en) * | 2006-03-20 | 2007-02-21 | 京信通信技术(广州)有限公司 | Double-polarized ultra-thin micro-band antenna |
| CN101346854A (en) * | 2005-12-27 | 2009-01-14 | 罗伯特.博世有限公司 | Antenna arrangement and use thereof |
-
2013
- 2013-04-09 CN CN2013101209791A patent/CN103280624A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5202697A (en) * | 1991-01-18 | 1993-04-13 | Cubic Defense Systems, Inc. | Low-profile steerable cardioid antenna |
| US20040070536A1 (en) * | 2002-10-11 | 2004-04-15 | Stotler Monte S. | Compact conformal patch antenna |
| CN101346854A (en) * | 2005-12-27 | 2009-01-14 | 罗伯特.博世有限公司 | Antenna arrangement and use thereof |
| CN2872625Y (en) * | 2006-03-20 | 2007-02-21 | 京信通信技术(广州)有限公司 | Double-polarized ultra-thin micro-band antenna |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500879B (en) * | 2013-10-16 | 2015-07-01 | 厦门大学 | Bridging type dual-frequency microstrip antenna with interdigital coupling control |
| CN103500879A (en) * | 2013-10-16 | 2014-01-08 | 厦门大学 | Bridging type dual-frequency microstrip antenna with interdigital coupling control |
| CN103840269A (en) * | 2013-12-25 | 2014-06-04 | 西安电子科技大学 | Wide-band, miniaturized and wide-beam multi-mode satellite navigation antenna |
| CN103794872A (en) * | 2014-01-03 | 2014-05-14 | 西安电子科技大学 | Super-miniature Beidou navigation antenna based on broadband short circuit loading structure |
| CN103794876B (en) * | 2014-01-18 | 2015-10-21 | 中国计量学院 | Windmill-shape back bowknot slot patch antennas |
| CN103794876A (en) * | 2014-01-18 | 2014-05-14 | 中国计量学院 | Windmill-shaped back bowknot opening groove microstrip antenna |
| CN104635244A (en) * | 2015-02-03 | 2015-05-20 | 芜湖航飞科技股份有限公司 | Anti-interference antenna on satellite navigation receiver |
| CN104795639A (en) * | 2015-05-14 | 2015-07-22 | 桂林电子科技大学 | Compact circular polarization microstrip antenna and antenna array consisting of compact circular polarization microstrip antenna |
| CN104795639B (en) * | 2015-05-14 | 2017-08-18 | 桂林电子科技大学 | A kind of antenna array of compact circularly-polarized microstrip antenna and its composition |
| CN104901005A (en) * | 2015-06-11 | 2015-09-09 | 广东工业大学 | Miniature double-frequency broadband circular polarization paster antenna |
| CN104901005B (en) * | 2015-06-11 | 2018-02-16 | 广东工业大学 | Compact dual-frequency broadband circular polarization patch antenna |
| CN107069188A (en) * | 2016-12-29 | 2017-08-18 | 北京遥测技术研究所 | Low section high efficiency dual polarized panel antennas |
| CN107069188B (en) * | 2016-12-29 | 2019-12-20 | 北京遥测技术研究所 | Low-profile high-efficiency dual-polarized panel antenna |
| CN108428997A (en) * | 2018-01-17 | 2018-08-21 | 深圳市华信天线技术有限公司 | Broadband plane antenna |
| CN111262005A (en) * | 2020-01-16 | 2020-06-09 | 广东工业大学 | Dual-polarized broadband magnetoelectric dipole antenna unit suitable for 5G base station and antenna array |
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Application publication date: 20130904 |