CN103219591B - Load the wide-beam circularly-polarizedmicrostrip microstrip antenna of parasitic annulus - Google Patents
Load the wide-beam circularly-polarizedmicrostrip microstrip antenna of parasitic annulus Download PDFInfo
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- CN103219591B CN103219591B CN201310121176.8A CN201310121176A CN103219591B CN 103219591 B CN103219591 B CN 103219591B CN 201310121176 A CN201310121176 A CN 201310121176A CN 103219591 B CN103219591 B CN 103219591B
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- 230000003071 parasitic effect Effects 0.000 title claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000005284 excitation Effects 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 230000010287 polarization Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses the wide-beam circularly-polarizedmicrostrip microstrip antenna loading parasitic annulus, comprise upper substrate, infrabasal plate, fixed leg is provided with between upper substrate and infrabasal plate, the upper surface of described infrabasal plate is provided with main radiating element, the upper surface of upper substrate is provided with parasitic annulus chip unit, and the bottom surface of infrabasal plate is provided with floor; Excitation port is provided with between described main radiating element and floor; Described main radiating element is by a circular patch and be positioned at circular patch a pair rectangle outward flange projection diametrically and form; The present invention, while keeping the radiance that planar microstrip circular polarized antenna is good, can widen vertical plane lobe width effectively, thus improves low elevation gain, and debugging is convenient; Compared with existing wide beam circular polarized antenna, the present invention has simpler structure, less size, lighter weight, thus can reduce production cost, is applicable in various Miniature Terminal equipment.
Description
Technical field
The present invention relates to circular polarization satellite positioning navigation antenna, particularly relate to the wide-beam circularly-polarizedmicrostrip microstrip antenna loading parasitic annulus.
Background technology
At present, global positioning satellite navigation has become the industry of a high speed development, the service range of triones navigation system that China is set up voluntarily is estimated covering the whole world within Future Ten year, and as wireless communication system throat thoroughfare---circular polarized antenna plays vital effect to this system.
According to the operation principle of satellite navigation system, in the middle of the signal of vertical plane, maximum to system accuracy contribution is low elevation signals near ground, though zenith signal is easy to launching and receiving, little to positioning action.Like this, in order to improve the positioning precision of system, General Requirements circular polarized antenna has higher low elevation gain (namely wider vertical plane lobe width), especially for current dipper system, satellite is fewer, harsh requirement is proposed to the low elevation gain of antenna, but current flat circle poliarizing antenna ubiquity causes the problem of low elevation gain deficiency because vertical plane lobe width is narrower.
Four-arm spiral antenna and plane microstrip antenna can form hemispheric circular polarization wave beam, are two kinds of antenna structure forms that global position system is commonly used.Four-arm spiral antenna has wider vertical plane lobe width, but its section is higher, and needs extra feeding network, complex structure, and operating efficiency is not high.
Microstrip antenna, owing to having low section, the easy of integration and batch advantages such as consistency is good, obtains and applies more and more widely.Generally, the vertical plane lobe width of microstrip antenna is narrower, is about 70 °-90 °, is difficult to meet low elevation angle index request higher in practical application.
In order to increase the vertical plane lobe width of microstrip antenna, the simplest way reduces the size on floor and increases the dielectric constant of substrate, but the effect of these two kinds of methods is very limited, and the problem that work efficiency drop, production difficulty and cost increase etc. can be brought new.In addition, effectively can increase lobe width by the method loading conical round table, thus improve low elevation gain, but fundamentally can change the characteristic of the low section of plane microstrip antenna.
Summary of the invention
The object of the invention is to the shortcoming and defect overcoming above-mentioned prior art, provide the wide-beam circularly-polarizedmicrostrip microstrip antenna loading parasitic annulus; Overcome conventional circular polarization antennas orthogonal face lobe width narrower, the problem that directional diagram not easily regulates.
The present invention is achieved through the following technical solutions:
Load the wide-beam circularly-polarizedmicrostrip microstrip antenna of parasitic annulus, comprise upper substrate, infrabasal plate,
Be provided with fixed leg between upper substrate and infrabasal plate, the upper surface of described infrabasal plate is provided with main radiating element, and the upper surface of upper substrate is provided with parasitic annulus chip unit, and the bottom surface of infrabasal plate is provided with floor.
Excitation port is provided with between described main radiating element and floor.
Described main radiating element is by a circular patch and be positioned at circular patch a pair rectangle outward flange projection diametrically and form.
Described outward flange projection and excitation port angle formed by the circle centre position of circular patch is 45 °.
The shape of described main radiating element is any one in circular, oval, rectangle or triangle.
The girth of described parasitic annulus chip unit is greater than two wavelength.
The present invention, relative to prior art, has following advantage and effect:
1, while keeping the radiance that planar microstrip circular polarized antenna is good, can effectively widen vertical plane lobe width, thus improve low elevation gain, and debugging is convenient.
2, compared with existing wide beam circular polarized antenna, the present invention has simpler structure, less size, lighter weight, thus can reduce production cost, is applicable in various Miniature Terminal equipment.
Accompanying drawing explanation
Fig. 1 is the present invention's parasitic annulus chip unit structural representation.
Fig. 2 is that the present invention faces structural representation.
Fig. 3 is main radiating element structural representation of the present invention.
Fig. 4 is that the present invention loads dextrorotation gain curve corresponding respectively before and after parasitic annulus chip unit.
Embodiment
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the present invention loads the wide-beam circularly-polarizedmicrostrip microstrip antenna of parasitic annulus, comprise upper substrate 1, infrabasal plate 2, fixed leg 6,7,8,9 is provided with between upper substrate 1 and infrabasal plate 2, the upper surface of described infrabasal plate 2 is provided with main radiating element 4, the upper surface of upper substrate 1 is provided with parasitic annulus chip unit 3, and the bottom surface of infrabasal plate 2 is provided with floor 10.Excitation port 5 is provided with between described main radiating element 4 and floor 10.Fixed leg 6,7,8,9 can adopt insulation pillar or metal pillar.
Main radiating element 4 is by a circular patch and be positioned at circular patch a pair rectangle outward flange projection 4-1 diametrically and form.Described outward flange projection 4-1 and excitation port 5 angle formed by the circle centre position of circular patch is 45 °.
The shape of described main radiating element 4 is any one in circular, oval, rectangle or triangle.But in actual applications, as long as the radiance of circular polarization can be produced.Outward flange projection 4-1 also can change into cave inward, corner cut or add perturbation resistance etc. on paster, also can reach effect same.
The girth of described parasitic annulus chip unit 3 is greater than two wavelength.When its length is less than two wavelength, induced signal on parasitic annulus chip unit 3 is in " capacitive ", and the phase place of radiated electromagnetic wave is ahead of the primary radiation paster 4 of below, so parasitic annulus chip unit 3 is as sender, play increase on-axis gain, reduce the effect of back lobe.When its length is slightly larger than two wavelength, on the annulus paster of parasitic annulus chip unit 3, induced signal is in " perception ", the phase place of radiated electromagnetic wave lags behind the main radiating element 4 of below, so parasitic annulus chip unit 3 is as antenna reflector, play suppression on-axis gain, increase the effect of low elevation angle place's gain.
The vertical range of upper substrate 1 and infrabasal plate 2 should not be too large, otherwise overall section is higher, recommends to be less than half wavelength.By regulating the parasitic diameter of annulus chip unit 3 annulus paster and the vertical range between upper substrate 1 and infrabasal plate 2, can control antenna antenna pattern easily, realize the optimum efficiency that will reach.
Described main radiating element 4, parasitic annulus chip unit 3 and floor 10, the mode all by printing is combined with upper substrate 1 and infrabasal plate 2.
Main radiating element 4, mainly in order to produce circular polarization radiation characteristic.For traditional circular polarization microstrip antenna, vertical plane 3dB lobe width generally between 70 ° to 90 °, in fact row further widen more difficult.And in existing flat circle poliarizing antenna design, be mainly devoted to impedance bandwidth and axial ratio bandwidth how to widen antenna, almost do not consider the vertical plane lobe width how increasing antenna.Antenna in the present invention, on the basis of traditional planar microstrip paster structure, by introducing annulus paster parasitic element 3, can widen the vertical plane lobe width of antenna effectively.Traditional micro-strip paster antenna has the maximum and hemisphere characteristic that is that reduce gradually to horizontal plane of zenith signal, and annulus paster antenna has the minimum and wheel the form of the foetus characteristic that is that increase gradually to horizontal plane of zenith signal, therefore by the directional diagram of superposition annulus paster antenna, the zenith signal of conventional microsthp patch antennas can be reduced, increase the low elevation gain near horizontal plane, thus effectively widen the lobe width of vertical plane.
The structure that the present invention proposes, when less on the impact of antenna low section characteristic, widens the vertical plane lobe width of antenna significantly.Because parasitic annulus chip unit 3 has good symmetry, and be positioned at directly over main radiating element 4, energy be coupled like this can be evenly distributed on the annulus of parasitic annulus chip unit 3, and the far-field pattern therefore after superposition can keep originally good omnidirectional's characteristic.
The present invention is by regulating distance between the diameter of parasitic annulus chip unit 3 and upper substrate 1, infrabasal plate 2 can the vertical plane lobe width of control antenna effectively.
In order to better the present invention is described, Fig. 4 gives the dextrorotation gain curve loading antenna before and after parasitic annulus chip unit 3.
As mentioned above, just the present invention can be realized preferably.
Embodiments of the present invention are not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present invention and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (4)
1. load the wide-beam circularly-polarizedmicrostrip microstrip antenna of parasitic annulus, comprise upper substrate, infrabasal plate, fixed leg is provided with between upper substrate and infrabasal plate, it is characterized in that: the upper surface of described infrabasal plate is provided with main radiating element, the upper surface of upper substrate is provided with parasitic annulus chip unit, and the bottom surface of infrabasal plate is provided with floor;
Main radiating element is by a circular patch and be positioned at circular patch a pair rectangle outward flange projection diametrically and form, and parasitic annulus chip unit is positioned at directly over main radiating element;
Regulate the annulus paster diameter of parasitic annulus chip unit and the vertical range between upper substrate and infrabasal plate, change aerial radiation direction.
2. the wide-beam circularly-polarizedmicrostrip microstrip antenna of the parasitic annulus of loading according to claim 1, is characterized in that: be provided with excitation port between described main radiating element and floor.
3. the wide-beam circularly-polarizedmicrostrip microstrip antenna of the parasitic annulus of loading according to claim 1 and 2, is characterized in that: described outward flange projection and excitation port angle formed by the circle centre position of circular patch is 45 °.
4. the wide-beam circularly-polarizedmicrostrip microstrip antenna of the parasitic annulus of loading according to claim 3, is characterized in that: the girth of described parasitic annulus chip unit is greater than two wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310121176.8A CN103219591B (en) | 2013-04-09 | 2013-04-09 | Load the wide-beam circularly-polarizedmicrostrip microstrip antenna of parasitic annulus |
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| CN201310121176.8A CN103219591B (en) | 2013-04-09 | 2013-04-09 | Load the wide-beam circularly-polarizedmicrostrip microstrip antenna of parasitic annulus |
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| CN103219591A CN103219591A (en) | 2013-07-24 |
| CN103219591B true CN103219591B (en) | 2015-10-28 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104362433B (en) * | 2014-11-13 | 2016-11-02 | 东南大学 | It is applied to the multi-functional dual-band dual-polarized antenna of human body communication system |
| CN105977619B (en) * | 2016-05-09 | 2018-07-20 | 南京邮电大学 | A kind of broadband sector circular polarized antenna |
| CN107768833B (en) * | 2017-10-09 | 2024-03-15 | 成都瑞德星无线技术有限公司 | Random polarization wide wave beam patch antenna |
| CN107946756B (en) * | 2017-11-14 | 2023-08-29 | 西安交通大学 | Electromagnetic super-surface loaded narrow-beam WLAN AP antenna |
| CN109116310B (en) * | 2018-09-11 | 2023-10-20 | 广东圣大电子有限公司 | Secondary radar radio frequency transceiver of airplane anti-collision system |
| CN109509966A (en) * | 2018-11-27 | 2019-03-22 | 南京华讯方舟通信设备有限公司 | A kind of S frequency range high-gain circular polarized antenna |
| CN113690578A (en) * | 2021-08-31 | 2021-11-23 | 维沃移动通信有限公司 | Wearable device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110005917A (en) * | 2011-01-01 | 2011-01-19 | 이은형 | Omni-directional dual polarization antenna with conical beam pattern |
| CN102856640A (en) * | 2012-09-26 | 2013-01-02 | 电子科技大学 | High-isolation dual-polarization E-type microstrip antenna with spurious wafer |
| CN203288756U (en) * | 2013-04-09 | 2013-11-13 | 华南理工大学 | Wide wave beam circularly polarized microstrip antenna provided with parasitic circular ring in loaded manner |
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2013
- 2013-04-09 CN CN201310121176.8A patent/CN103219591B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110005917A (en) * | 2011-01-01 | 2011-01-19 | 이은형 | Omni-directional dual polarization antenna with conical beam pattern |
| CN102856640A (en) * | 2012-09-26 | 2013-01-02 | 电子科技大学 | High-isolation dual-polarization E-type microstrip antenna with spurious wafer |
| CN203288756U (en) * | 2013-04-09 | 2013-11-13 | 华南理工大学 | Wide wave beam circularly polarized microstrip antenna provided with parasitic circular ring in loaded manner |
Non-Patent Citations (1)
| Title |
|---|
| 新型宽波束圆极化天线-微带介质天线;何海丹;《电讯技术》;20030131(第1期);附图1 * |
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Effective date of registration: 20170111 Address after: 510535 Guangzhou science and Technology Development Zone, high tech Industrial Development Zone, Guangdong, No. 182 Patentee after: GUANGZHOU SUNRISE COMMUNICATION EQUIPMENT Co.,Ltd. Address before: 510640 Tianhe District, Guangdong, No. five road, No. 381, Patentee before: SOUTH CHINA University OF TECHNOLOGY |
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