CN102570043B - Multi-polarization microstrip patch antenna loading zero-order resonator - Google Patents
Multi-polarization microstrip patch antenna loading zero-order resonator Download PDFInfo
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- CN102570043B CN102570043B CN201210017943.6A CN201210017943A CN102570043B CN 102570043 B CN102570043 B CN 102570043B CN 201210017943 A CN201210017943 A CN 201210017943A CN 102570043 B CN102570043 B CN 102570043B
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Abstract
The invention provides a multi-polarization microstrip patch antenna loading a zero-order resonator. The antenna comprises an upper-layer microstrip structure, a middle medium base plate and a bottom-layer metal floor, wherein the upper-layer microstrip structure is arranged on one surface of the middle medium base plate and comprises a microstrip transmission line, a coupling feed part and an antenna main body; the microstrip transmission line is vertically connected with the coupling feed part; the antenna main body and the microstrip transmission line are arranged at the two sides of the coupling feed part respectively; a gap is reserved between the antenna main body and the coupling feed part; the antenna main body consists of two microstrip patch parts and a zero-order resonance part; and the zero-order resonance part is arranged between the two microstrip patch parts and consists of an upper-layer microstrip patch and a grounding metal column vertically arranged between the upper-layer microstrip patch and the middle medium base plate. In the antenna provided by the invention, by combining the traditional microstrip patch antenna with a second-order mushroom type zero-order resonator, the shortcomings of respective polarization direction and radiation patterns of the traditional microstrip patch antenna and the second-order mushroom type zero-order resonator are overcome, so that good radiation characteristic is realized.
Description
Technical field
The present invention relates to the miniature antenna technical field in radio communication, more particularly, relate to a kind of multipolarization micro-strip paster antenna that loads Zero order resonator.
Background technology
Along with the develop rapidly of mobile communication, antenna is as the transceiving device of Wireless Telecom Equipment, and people have proposed more and more higher requirement to its performance.Single-polarized antenna is in use often subject to environment, antenna and the impact such as puts and cause guaranteeing reception, so people's invention multi-polarization antenna overcomes the defect of single polarization, guarantees transmitting-receiving quality.Multi-polarization antenna mostly is Combined antenna, utilize the different single-polarized antenna of a plurality of same frequency polarization direction to be combined to form, as patent CN102099963A, but present stage multi-polarization antenna for meeting multipolarization characteristic, mostly be stereoeffect, size is larger, complex structure.
Microstrip antenna has lightweight, and volume is little, the planar structure of thin profile, easily make conformal antenna, manufacturing cost, is easy to a large amount of production, is therefore used widely, conventional patch antenna polarised direction is single, for the horizontal direction of medium substrate, directional diagram is upwards concentrated, and lobe width is narrow, horizontal plane radiation is not enough, if can accomplish the undersized micro-band multi-polarization antenna of low section just can add on this basis a kind of vertical polarized antenna equally with low section microstrip structure.
Anisotropic media be propose in recent years a kind of in certain frequency range effective dielectric constant and magnetic permeability can be the structure of negative value, utilize its peculiar electromagnetic property can manufacture Zero-order resonant antenna, the size of Zero-order resonant antenna can not be subject to the restriction of resonance frequency within the specific limits, can effectively make antenna miniaturization.Existing mushroom-shaped Zero-order resonant antenna has low section, and the polarised direction vertical with dielectric-slab, but its antenna pattern is zero point in medium substrate vertical direction.Therefore, in order to make up the defect of existing antenna on directional diagram, realize aerial radiation and cover preferably at dielectric-slab upper half-space, microstrip antenna can be combined with mushroom-shaped Zero-order resonant antenna to realize volume little, the multi-polarization antenna of low section.
Summary of the invention
The object of the invention is to overcome shortcoming of the prior art with not enough, a kind of multipolarization micro-strip paster antenna that loads Zero order resonator is provided, this antenna has the multipolarization characteristic of horizontal polarization and perpendicular polarization simultaneously, can effectively make up the gain reduction in medium substrate horizontal direction at the radiation zero of medium substrate vertical direction and single micro-strip paster antenna of single Zero-order resonant antenna.
In order to achieve the above object, the present invention is achieved by following technical proposals: a kind of multipolarization micro-strip paster antenna that loads Zero order resonator, is characterized in that: comprise upper strata microstrip structure, intermediate medium substrate and underlying metal floor; Described upper strata microstrip structure is arranged in the one side of intermediate medium substrate, comprise microstrip transmission line, coupling feed part and antenna body: microstrip transmission line is separately positioned on the both sides of coupling feed part with coupling feed vertical connection of part, antenna body and microstrip transmission line; Seamed gap between antenna body and coupling current feed department divide, microstrip transmission line by gap to the antenna body feed that is coupled; Described antenna body is comprised of two microband paste parts and zeroth order resonance portion, and zeroth order resonance portion is arranged between two microband paste parts; Described zeroth order resonance portion by upper strata microband paste and be vertically set on upper strata microband paste and intermediate medium substrate between grounded metal post form.
By such scheme, can obtain a kind of multipolarization micro-strip paster antenna that overcomes the loading Zero order resonator of polarised direction and antenna pattern defect, this antenna does not increase antenna size and realizes good radiation characteristic.
In described antenna body, microband paste part is vertical with zeroth order resonance portion polarised direction, and microband paste partial polarization direction is parallel to intermediate medium substrate, and zero resonance portion polarised direction is perpendicular to intermediate medium substrate.
Described microstrip transmission line by gap to antenna body be coupled feed refer to microstrip transmission line by gap to the microband paste part of antenna body and the upper strata microband paste feed that is coupled simultaneously.
Described microband paste is partly the micro-strip paster antenna of rectangle.
The length of described microband paste part determines according to the wavelength of high band.
Described zeroth order resonance portion is the mushroom-shaped Zero order resonator of second order, and its unit is square and the middle grounded metal post in unit is connected with underlying metal floor.
Described microstrip transmission line is the transmission line of 50 ohm.
The relative dielectric constant of described intermediate medium substrate is 1-100, and thickness is 0.1mm-5mm.
Compared with prior art, tool of the present invention has the following advantages and beneficial effect:
1, antenna of the present invention is by being combined the mushroom-shaped Zero order resonator of conventional microsthp patch antennas and second order, overcome both defects of polarised direction and antenna pattern separately, realized good radiation characteristic, and do not increased antenna size.
2, the zeroth order resonance physical size adopting in the present invention and resonance frequency are independent, can adjust easily size and be combined with the micro-strip paster antenna of same frequency.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention loads the multipolarization micro-strip paster antenna of Zero order resonator;
Fig. 2 is the antenna scattering parameter schematic diagram in embodiment;
Fig. 3 (a) is that the mushroom-shaped Zero order resonator of second order is at the antenna pattern of xoy plane;
Fig. 3 (b) is that conventional microsthp patch antennas is at the antenna pattern of xoy plane;
Fig. 3 (c) is that the present invention loads the multipolarization micro-strip paster antenna of Zero order resonator at the antenna pattern of xoy plane;
Fig. 4 (a) is that the mushroom-shaped Zero order resonator of second order is at the antenna pattern of yoz plane;
Fig. 4 (b) is that conventional microsthp patch antennas is at the antenna pattern of yoz plane;
Fig. 4 (c) is that the present invention loads the multipolarization micro-strip paster antenna of Zero order resonator at the antenna pattern of yoz plane.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment
The present invention load Zero order resonator multipolarization micro-strip paster antenna structural representation as shown in Figure 1, comprise that upper strata microstrip structure, relative dielectric constant are intermediate medium substrate 9 and the underlying metal floor that 1-100, thickness are 0.1mm-5mm; Upper strata microstrip structure is arranged on intermediate medium substrate 9, and it comprises microstrip transmission line 1, coupling feed part 7 and the antenna body of 50 ohm.Microstrip transmission line 1 and coupling feed 7 vertical connections of part, antenna body and microstrip transmission line 1 are separately positioned on the both sides of coupling feed part 7; Between antenna body and coupling feed part 7, there is gap 8.Wherein, antenna body by the micro-strip paster antenna 2 of rectangle and 3 and the square mushroom-shaped Zero order resonator of second order form, the mushroom-shaped Zero order resonator of second order comprises upper strata microband paste 4 and the grounded metal post 5 and 6 being connected with floor.The mushroom-shaped Zero order resonator of second order is between micro-strip paster antenna 2 and 3, micro-strip paster antenna 2 and 3 and the mushroom-shaped Zero order resonator of second order by same microstrip transmission line 1, carry out feed, i.e. the micro-strip paster antenna 2 of microstrip transmission line 1 by the 8 pairs of antenna bodies in gap and 3 and upper strata microband paste 4 feed that is simultaneously coupled.
Micro-strip paster antenna 2 is vertical with the mushroom-shaped Zero order resonator polarised direction of second order with 3, and micro-strip paster antenna 2 and 3 polarization are parallel to intermediate medium substrate 9, and the mushroom-shaped Zero order resonator polarised direction of second order is perpendicular to intermediate medium substrate 9.
Micro-strip paster antenna 2 and 3 length determines by the wavelength under operating frequency, and be about 1/2nd wavelength, its operating frequency is 3.68GHz.
In the present invention the mushroom-shaped Zero order resonator of micro-strip paster antenna and second order is combined, the polarised direction of micro-strip paster antenna is y direction, and antenna pattern is concentrated to z positive direction, the polarised direction of the mushroom-shaped Zero order resonator of second order is z direction, antenna pattern is that ring-type is positioned at xy plane, difference mutually making up of the difference of both polarised directions and directional diagram, has expanded the radiation coverage of antenna effectively.
Advantage for proof antenna of the present invention, by the antenna in the present embodiment with only have the mushroom-shaped Zero order resonator of micro-strip paster antenna and second order to carry out contrast simulation separately, shown in Fig. 2 is the scattering parameter of the antenna in the present embodiment, and abscissa is frequency, and ordinate is S11.Fig. 3 and the antenna pattern that Figure 4 shows that xoy plane and the yoz plane of three kinds of situations.Wherein solid line represents the θ durection component of aerial radiation electric field strength in spherical coordinate, the φ durection component of dotted line representative aerial radiation electric field strength in spherical coordinate.From Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c), can see that the mushroom-shaped Zero order resonator of second order has made up the deficiency of micro-strip paster antenna horizontal direction (xoy) radiation, the antenna omnidirectional after improvement is better; From Fig. 4 (a), 4(b) and 4(c) can see that micro-strip paster antenna has made up the mushroom-shaped Zero order resonator of second order zero point that (z direction) exists in the vertical direction, the aerial radiation in the present embodiment all has good covering at the upper half-space of intermediate medium substrate 9.
The exponent number of mushroom-shaped Zero order resonator of the present invention is that n has n grounded metal post.
Above-described embodiment is preferably execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (6)
1. a multipolarization micro-strip paster antenna that loads Zero order resonator, is characterized in that: comprise upper strata microstrip structure, intermediate medium substrate and underlying metal floor; Described upper strata microstrip structure is arranged in the one side of intermediate medium substrate, comprise microstrip transmission line, coupling feed part and antenna body: microstrip transmission line is separately positioned on the both sides of coupling feed part with coupling feed vertical connection of part, antenna body and microstrip transmission line; Seamed gap between antenna body and coupling current feed department divide, microstrip transmission line by gap to the antenna body feed that is coupled; Described antenna body is comprised of two microband paste parts and zeroth order resonance portion, and zeroth order resonance portion is arranged between two microband paste parts; Described zeroth order resonance portion by upper strata microband paste and be vertically set on upper strata microband paste and intermediate medium substrate between grounded metal post form; Described microstrip transmission line by gap to antenna body be coupled feed refer to microstrip transmission line by gap to the microband paste part of antenna body and the upper strata microband paste feed that is coupled simultaneously; Described microband paste is partly the micro-strip paster antenna of rectangle.
2. the multipolarization micro-strip paster antenna of loading Zero order resonator according to claim 1, it is characterized in that: in described antenna body, microband paste part is vertical with zeroth order resonance portion polarised direction, microband paste partial polarization direction is parallel to intermediate medium substrate, and zero resonance portion polarised direction is perpendicular to intermediate medium substrate.
3. the multipolarization micro-strip paster antenna of loading Zero order resonator according to claim 1, is characterized in that: the length of described microband paste part determines according to the wavelength of high band.
4. the multipolarization micro-strip paster antenna of loading Zero order resonator according to claim 1, it is characterized in that: described zeroth order resonance portion is the mushroom-shaped Zero order resonator of second order, its unit is square and the middle grounded metal post in unit is connected with underlying metal floor.
5. the multipolarization micro-strip paster antenna of loading Zero order resonator according to claim 1, is characterized in that: described microstrip transmission line is the transmission line of 50 ohm.
6. the multipolarization micro-strip paster antenna of loading Zero order resonator according to claim 1, is characterized in that: the relative dielectric constant of described intermediate medium substrate is 1-100, and thickness is 0.1mm-5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210017943.6A CN102570043B (en) | 2012-01-18 | 2012-01-18 | Multi-polarization microstrip patch antenna loading zero-order resonator |
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| CN201210017943.6A CN102570043B (en) | 2012-01-18 | 2012-01-18 | Multi-polarization microstrip patch antenna loading zero-order resonator |
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| CN102570043B true CN102570043B (en) | 2014-05-07 |
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| CN107611604A (en) * | 2017-08-30 | 2018-01-19 | 武汉虹信通信技术有限责任公司 | A kind of side feedback micro-strip paster antenna and the intensive aerial arrays of 5G |
| CN108565532B (en) * | 2018-03-26 | 2020-01-14 | 华南理工大学 | Double-layer planar duplexer of high-integration double-mode rectangular resonator |
| CN109004344B (en) * | 2018-07-24 | 2023-12-22 | 南通至晟微电子技术有限公司 | Broadband antenna applied to 5G mobile terminal |
| CN111537808B (en) * | 2020-04-28 | 2022-07-15 | 中国人民解放军63660部队 | Ultra-wide spectrum high-power microwave sensor based on aqueous medium |
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| KR100976595B1 (en) * | 2008-04-21 | 2010-08-17 | 한국전자통신연구원 | Uni-Planar Antenna using CRLH structure |
| US7911386B1 (en) * | 2006-05-23 | 2011-03-22 | The Regents Of The University Of California | Multi-band radiating elements with composite right/left-handed meta-material transmission line |
| KR20110031614A (en) * | 2009-09-21 | 2011-03-29 | 중앙대학교 산학협력단 | Small zeroth-order resonant antenna with spiral slot on the ground plane |
| CN201804998U (en) * | 2010-09-30 | 2011-04-20 | 西北工业大学 | Wideband binary array antenna of composite left-right handed transmission line |
| CN102104199A (en) * | 2010-10-28 | 2011-06-22 | 华南理工大学 | Zero resonance unit-loaded broadband planar inverted-F antenna |
| CN201956456U (en) * | 2010-10-28 | 2011-08-31 | 华南理工大学 | Small size three-frequency planar antenna of loading zero-resonance unit |
| KR20110127394A (en) * | 2010-05-19 | 2011-11-25 | 인천대학교 산학협력단 | A novel 2d-metamaterial crlh dng zor antenna of a microstrip patch capacitively coupled to a rectangular ring and a novel eng antenna |
| CN202513285U (en) * | 2012-01-18 | 2012-10-31 | 华南理工大学 | Multi-polarization microstrip patch antenna for loading zero order resonator |
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2012
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7911386B1 (en) * | 2006-05-23 | 2011-03-22 | The Regents Of The University Of California | Multi-band radiating elements with composite right/left-handed meta-material transmission line |
| KR100976595B1 (en) * | 2008-04-21 | 2010-08-17 | 한국전자통신연구원 | Uni-Planar Antenna using CRLH structure |
| KR20110031614A (en) * | 2009-09-21 | 2011-03-29 | 중앙대학교 산학협력단 | Small zeroth-order resonant antenna with spiral slot on the ground plane |
| KR20110127394A (en) * | 2010-05-19 | 2011-11-25 | 인천대학교 산학협력단 | A novel 2d-metamaterial crlh dng zor antenna of a microstrip patch capacitively coupled to a rectangular ring and a novel eng antenna |
| CN201804998U (en) * | 2010-09-30 | 2011-04-20 | 西北工业大学 | Wideband binary array antenna of composite left-right handed transmission line |
| CN102104199A (en) * | 2010-10-28 | 2011-06-22 | 华南理工大学 | Zero resonance unit-loaded broadband planar inverted-F antenna |
| CN201956456U (en) * | 2010-10-28 | 2011-08-31 | 华南理工大学 | Small size three-frequency planar antenna of loading zero-resonance unit |
| CN202513285U (en) * | 2012-01-18 | 2012-10-31 | 华南理工大学 | Multi-polarization microstrip patch antenna for loading zero order resonator |
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