CN103117454A - Wideband circular polarization high gain combined antenna - Google Patents
Wideband circular polarization high gain combined antenna Download PDFInfo
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- CN103117454A CN103117454A CN2013100769866A CN201310076986A CN103117454A CN 103117454 A CN103117454 A CN 103117454A CN 2013100769866 A CN2013100769866 A CN 2013100769866A CN 201310076986 A CN201310076986 A CN 201310076986A CN 103117454 A CN103117454 A CN 103117454A
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Abstract
The invention provides a wideband circular polarization high gain combined antenna. The combined antenna comprises a micro-strip antenna and a pyramid horn antenna, wherein the micro-strip antenna comprises an upper layer dielectric substrate, a lower layer dielectric substrate and support foam, wherein a circular structure is sculptured on the center of the upper surface of the lower layer dielectric substrate, two symmetrical cutting angles along a circle diameter direction are arranged on the external circle of the circular structure, four central symmetry circle radiation pasting slices with equal sizes are evenly sculptured on the lower surface of the upper layer dielectric substrate, the lower surface of the upper layer dielectric substrate is installed on the upper surface of the lower layer dielectric substrate through the rigid support foam, centers of the circle radiation pasting slices with cutting angles are aligned with the symmetric center of the circle radiation pasting slices, the pyramid horn antenna is in a taper frame structure, and an open end of the pyramid horn antenna, with a small opening diameter, is installed on the upper surface of the lower layer dielectric substrate, and furthermore the upper layer dielectric substrate is surrounded inside the pyramid horn antenna. The wideband circular polarization high gain combined antenna can simultaneously guarantee good impedance, circular polarization and high gain radiation properties in a wide frequency band.
Description
Technical field
The present invention relates to a kind of antenna, be specifically related to a kind of broadband circle polarized high-gain combined antenna, belong to antenna technical field.
Background technology
Microstrip antenna has low section, volume is little, lightweight and easily with the advantages such as application platform is conformal, easy of integration, therefore all be used widely in a lot of applications.Along with the development of modern communication technology, many systems often require it to have the characteristic of broadband, high-gain and circular polarization work.Yet the narrow bandwidth of traditional circular polarization microstrip antenna structure, the gain not high, make it be difficult to satisfy the expectation requirement of aforementioned system, if and adopt the antenna of other form, such as helical antenna commonly used etc., also be difficult to satisfy simultaneously the requirement of broadband, high-gain and circular polarization.
Summary of the invention
In view of this, the invention provides a kind of broadband circle polarized high-gain combined antenna, can guarantee simultaneously good impedance operator and radiation characteristic in quite wide frequency band.
A kind of broadband circle polarized high-gain combined antenna, this combined antenna comprises microstrip antenna and pyramidal horn antenna;
Described microstrip antenna comprises upper layer medium substrate, layer dielectric substrate and supports foam, adopt the method that etches away remainder to stay next circular configuration at the upper surface center of layer dielectric substrate, and on the circular configuration cylindrical along circular diameter direction symmetry with two symmetrical corner cuts, this structure is called the circular radiation patch with corner cut; Lower surface in upper layer medium substrate evenly etches the identical circular radiation patch of four sizes that is centrosymmetric; The lower surface of upper layer medium substrate is arranged on the upper surface of layer dielectric substrate by rigid support foam, align with the center of the circular radiation patch of corner cut and the symmetrical centre of circular radiation patch;
Described pyramidal horn antenna is the tapered box shelf structure, and the little openend of its bore is arranged on the upper surface of layer dielectric substrate in microstrip antenna, and upper layer medium substrate is enclosed in pyramidal horn antenna inside.
The centre frequency of described combined antenna work is 10GHz, and the combined antenna lateral dimension is 63mm * 63mm, vertically is highly 26mm; Described combined antenna is 14.4dBi in centre frequency place's zenith main pole gain; Described combined antenna compares less than 2 at 7.65GHz～12.44GHz frequency band standing internal wave, and bandwidth is 4.79GHz; Less than 4dB, bandwidth is 2.3GHz to antenna zenith axial ratio in 8.06GHz～10.36GHz frequency band; Antenna satisfy simultaneously standing-wave ratio less than 2 and axial ratio be 2.3GHz less than the frequency bandwidth of 4dB.
Beneficial effect: (1) the present invention adopts the combining form of Two--Layer Microstrip Antenna and pyramidal horn antenna, when making antenna have to a certain extent traditional microstrip antenna advantage, effectively expand the bandwidth of operation of antenna and improve its gain, and this antenna adopts the single port coaxial line to encourage, feed structure is simple, reliable in function.
(2) Two--Layer Microstrip Antenna in the present invention partly is divided into two-layerly, and wherein lower floor for by coaxial direct-drive and single circular patch that have symmetrical corner cut, produces circular polarization radiation to guarantee antenna; Upper strata and circular patch symmetrical placement measure-alike by four consists of, and produces circular polarization radiation by lower floor's paster through coupling effect, this version greatly broadening impedance and the circular polarization bandwidth of antenna.
(3) the present invention can by increasing the mode of pyramidal horn antenna radiating aperture, improve antenna gain effectively.
Description of drawings
Fig. 1 is the overall structure figure of the broadband circle polarized high-gain combined antenna of the present invention.
Fig. 2 is the structure chart of microstrip antenna of the present invention.
Fig. 3 is the structure chart of microstrip antenna of the present invention lower floor.
Fig. 4 is the simulation result figure of combined antenna standing-wave ratio of the present invention.
Fig. 5 is the simulation result figure of combined antenna zenith of the present invention place axial ratio.
Fig. 6 is the simulation result figure of combined antenna zenith of the present invention place's gain.
Fig. 7 is the centre frequency of the present invention antenna pattern simulation result figure of place.
Fig. 8 is the centre frequency of the present invention antenna axial ratio simulation result figure of place.
Wherein, 1-microstrip antenna, 2-pyramidal horn antenna, 3-layer dielectric substrate, 4-upper layer medium substrate, 5-support foam with the circular radiation patch of circular radiation patch, 6-, the 7-of corner cut
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
As shown in Figure 1, the invention provides a kind of broadband circle polarized high-gain combined antenna, this combined antenna comprises microstrip antenna 1 and pyramidal horn antenna 2, and pyramidal horn antenna 2 is placed in the upper surface of microstrip antenna 1.
As shown in accompanying drawing 2 and accompanying drawing 3, microstrip antenna 1 comprises upper layer medium substrate 4, layer dielectric substrate 3 and supports foam 7, circular configuration of upper surface center etching at layer dielectric substrate 3, namely adopt the method that etches away remainder to stay next circular configuration, and on the circular configuration cylindrical along the circular diameter direction with two symmetrical corner cuts, this structure is called the circular radiation patch 5 with corner cut;
Lower surface in upper layer medium substrate 4 evenly etches the identical circular radiation patch 6 of four sizes that is centrosymmetric, and namely adopts the method that etches away remainder to stay four circular configurations that size is identical at the lower surface center of upper layer medium substrate 4.
The lower surface of upper layer medium substrate 4 is arranged on the upper surface of layer dielectric substrate 3 by rigid support foam 7, and align with the center of the circular radiation patch 5 of corner cut and the symmetrical centre of circular radiation patch 6, vary in size but close with the circular radiation patch 5 of corner cut and circular radiation patch 6, effectively the working band of broadening antenna.
Operation principle: by external coaxial direct-drive, because it has symmetrical corner cut, thereby can guarantee the circular polarization characteristics of antenna with the circular radiation patch 5 of corner cut; And, can by change the corner cut position easily the rotation direction of control antenna circular polarization be left-hand circular polarization or right-handed circular polarization, antenna is the right-handed circular polarization radiation in the present embodiment.Circular radiation patch 6 is carried out coupling excitation by the circular patch 5 with corner cut, by adjusting the distance of two layer medium plate, the electromagnetic coupling effect between two-layer radiation patch unit, up and down can be adjusted to proper range.And can be further by regulating four circular radiation patch 6 size and between distance, make the impedance of antenna and circular polarization bandwidth of operation reach optimum value; Pyramidal horn antenna 2 has increased the radiating aperture of antenna, thereby can effectively improve antenna gain under the prerequisite that does not affect antenna impedance and circular polarization characteristics.
As shown in accompanying drawing 4～8, the centre frequency of combined antenna work is 10GHz, and the combined antenna lateral dimension is 63mm * 63mm, vertically is highly 26mm; The combined antenna of said structure is that 7.65GHz～12.44GHz standing internal wave ratio is less than 2 in the centre frequency of work, and bandwidth is 4.79GHz; Less than 4dB, bandwidth is 2.3GHz to antenna zenith axial ratio in 8.06GHz～10.36GHz; Antenna satisfy simultaneously standing-wave ratio less than 2 and axial ratio be 2.3GHz(25% less than the frequency bandwidth of 4dB).Antenna reaches maximum 14.4dBi in the place's gain of 10GHz frequency; And in 7.65GHz～12GHz frequency band range all greater than 10dBi.
Antenna is in two orthogonal planes at 10GHz frequency place, and 3dB axial ratio lobe width average is 33 °.
In sum, these are only the selected embodiment of the present invention, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. broadband circle polarized high-gain combined antenna, it is characterized in that: this combined antenna comprises microstrip antenna (1) and pyramidal horn antenna (2);
Described microstrip antenna (1) comprises upper layer medium substrate (4), layer dielectric substrate (3) and supports foam (7), adopt the method that etches away remainder to stay next circular configuration at the upper surface center of layer dielectric substrate (3), and on the circular configuration cylindrical along the circular diameter direction with two symmetrical corner cuts, this structure is called the circular radiation patch (5) with corner cut; Lower surface in upper layer medium substrate (4) evenly etches the identical circular radiation patch (6) of four sizes that is centrosymmetric; The lower surface of upper layer medium substrate (4) is arranged on the upper surface of layer dielectric substrate (3) by rigid support foam (7), align with the center of the circular radiation patch (5) of corner cut and the symmetrical centre of four circular radiation patch (6);
Described pyramidal horn antenna (2) is the tapered box shelf structure, and the little openend of its bore is arranged on the upper surface of layer dielectric substrate (3) in microstrip antenna (1), and upper layer medium substrate (4) is enclosed in pyramidal horn antenna (2) inside.
2. a kind of broadband circle polarized high-gain combined antenna as claimed in claim 1, it is characterized in that: the centre frequency of described combined antenna work is 10GHz, the combined antenna lateral dimension is 63mm * 63mm, vertically is highly 26mm; Described combined antenna is 14.4dBi in centre frequency place's zenith main pole gain; Described combined antenna compares less than 2 at 7.65GHz～12.44GHz frequency band standing internal wave, and bandwidth is 4.79GHz; Less than 4dB, bandwidth is 2.3GHz to antenna zenith axial ratio in 8.06GHz～10.36GHz frequency band; Antenna satisfy simultaneously standing-wave ratio less than 2 and axial ratio be 2.3GHz less than the frequency bandwidth of 4dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100769866A CN103117454A (en) | 2013-03-11 | 2013-03-11 | Wideband circular polarization high gain combined antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100769866A CN103117454A (en) | 2013-03-11 | 2013-03-11 | Wideband circular polarization high gain combined antenna |
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| CN103117454A true CN103117454A (en) | 2013-05-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682651A (en) * | 2013-12-12 | 2014-03-26 | 西安电子科技大学昆山创新研究院 | Miniature wide-wave-beam circularly polarized antenna |
| CN104037504A (en) * | 2014-06-13 | 2014-09-10 | 华侨大学 | Trumpet type low-profile broadband high-gain antenna |
| CN104124516A (en) * | 2014-06-12 | 2014-10-29 | 南方科技大学 | Antenna device and antenna array |
| CN104793188A (en) * | 2015-04-29 | 2015-07-22 | 芜湖航飞科技股份有限公司 | Vehicle-mounted millimeter-wave anti-collision radar antenna system |
| CN107181050A (en) * | 2017-04-06 | 2017-09-19 | 上海交通大学 | The high-gain circular polarised array antenna of bowl-type high impedance reflector |
| CN111725619A (en) * | 2020-06-24 | 2020-09-29 | 安徽四创电子股份有限公司 | Electric scanning antenna |
Citations (3)
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| EP0920075A1 (en) * | 1997-06-18 | 1999-06-02 | Kyocera Corporation | Wide-angle circular polarization antenna |
| CN1248348A (en) * | 1997-02-24 | 2000-03-22 | 艾利森电话股份有限公司 | Base station antenna arrangement |
| CN102832447A (en) * | 2011-06-17 | 2012-12-19 | 云南银河之星科技有限公司 | Planar five-ring circularly polarized antenna |
-
2013
- 2013-03-11 CN CN2013100769866A patent/CN103117454A/en active Pending
Patent Citations (3)
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|---|---|---|---|---|
| CN1248348A (en) * | 1997-02-24 | 2000-03-22 | 艾利森电话股份有限公司 | Base station antenna arrangement |
| EP0920075A1 (en) * | 1997-06-18 | 1999-06-02 | Kyocera Corporation | Wide-angle circular polarization antenna |
| CN102832447A (en) * | 2011-06-17 | 2012-12-19 | 云南银河之星科技有限公司 | Planar five-ring circularly polarized antenna |
Non-Patent Citations (2)
| Title |
|---|
| DAVID M.POZAR ET AL: "A Dual-Band Circularly Polarized Aperture-coupled Stacked Microstrip Antenna for Global Positioning Satellte", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》, vol. 45, no. 11, 30 November 1997 (1997-11-30), pages 1618 - 1625, XP011003104 * |
| NASIMUDDIN，KARU P.ESSELLE ET AL: "Wideband High-Gain Circularly Polarized Stacked Microstrip Antennas With an optimized C-Type Feed and a Short Horn", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》, vol. 56, no. 2, 29 February 2008 (2008-02-29), pages 578 - 581, XP 011201031, DOI: doi:10.1109/TAP.2007.915476 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682651A (en) * | 2013-12-12 | 2014-03-26 | 西安电子科技大学昆山创新研究院 | Miniature wide-wave-beam circularly polarized antenna |
| CN103682651B (en) * | 2013-12-12 | 2017-03-15 | 西安电子科技大学昆山创新研究院 | A kind of miniaturization broad beam microstrip antenna |
| CN104124516A (en) * | 2014-06-12 | 2014-10-29 | 南方科技大学 | Antenna device and antenna array |
| CN104124516B (en) * | 2014-06-12 | 2017-06-23 | 南方科技大学 | Antenna assembly and aerial array |
| CN104037504A (en) * | 2014-06-13 | 2014-09-10 | 华侨大学 | Trumpet type low-profile broadband high-gain antenna |
| CN104037504B (en) * | 2014-06-13 | 2016-08-24 | 华侨大学 | A kind of trumpet type low section wide band high-gain antenna |
| CN104793188A (en) * | 2015-04-29 | 2015-07-22 | 芜湖航飞科技股份有限公司 | Vehicle-mounted millimeter-wave anti-collision radar antenna system |
| CN107181050A (en) * | 2017-04-06 | 2017-09-19 | 上海交通大学 | The high-gain circular polarised array antenna of bowl-type high impedance reflector |
| CN111725619A (en) * | 2020-06-24 | 2020-09-29 | 安徽四创电子股份有限公司 | Electric scanning antenna |
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Application publication date: 20130522 |