CN104269616A - Rectangular microstrip antenna working in higher-order mode in mobile applications - Google Patents
Rectangular microstrip antenna working in higher-order mode in mobile applications Download PDFInfo
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- CN104269616A CN104269616A CN201410475182.8A CN201410475182A CN104269616A CN 104269616 A CN104269616 A CN 104269616A CN 201410475182 A CN201410475182 A CN 201410475182A CN 104269616 A CN104269616 A CN 104269616A
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- microstrip antenna
- rectangular microstrip
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Abstract
The invention discloses a rectangular microstrip antenna working in a higher-order mode in mobile applications, belongs to the technical field of wireless communication, and aims to provide a method for producing an omni-directional conical beam pattern (OCBP) by utilizing a mode TM02 and a mode TM20 of the rectangular microstrip antenna. The rectangular microstrip antenna comprises a cylindrical medium substrate, an irradiator arranged on the front face of the medium substrate, an earth plate arranged on the back face of the medium substrate and two coaxial probes carrying out feed on the antenna. The rectangular microstrip antenna appropriately selects the mode TM02 or the mode TM20 through dual-port equiamplitude in-phase current excitation and annular gaps, and achieves high isolation and good impedance matching for the two ports. The rectangular microstrip antenna working in the higher-order mode in the mobile applications guarantees a simple antenna form and a simple feed structure while achieving expected targets, and has quite high use value and broad application prospects.
Description
Technical field
The invention belongs to wireless communication technology field, be specifically related to one and work in TM
02and TM
20the omnidirectional radiation rectangular microstrip antenna of pattern.
Background technology
Along with developing rapidly of modern information technologies, mobile communication technology is more and more deep in daily life.As crucial parts in mobile communication system, the quality of antenna (transmitting/receiving) directly affects communication quality.So, aobvious particularly important of the antenna of a excellent performance progress to the raising of mobile communication quality and technology.Since the seventies in last century, the studied persons of microstrip antenna are development for the first time, just lightweight with it, volume is little, cost is low, planar structure, can with the plurality of advantages such as integrated circuit is compatible and paid close attention to by each side personage and favor.But a design with the omnidirectional radiation microstrip antenna of low section Miniaturization high-gain characteristic still has very large challenge and researching value.
Through finding the retrieval of prior art document, there is omni-directional conical lobe figure (Omnidirectional Conical Beam Pattern, OCBP) microstrip antenna, because of advantages such as 360 degree of omnidirectional's coverings in its gain higher relative to traditional antenna and radiation orientation, enjoys high praise always in mobile communication system design.Son, S.-H., Jeon, S.-I. wait people within 2010, to be published in article " GA-based design of multi-ring arrays with omnidirectional conical beam pattern " and the Zuo of IEEE Transactions on Antennas and Propagation, the people such as S.L. were published in Electron.Letter article " Enhanced bandwidth of low-profile sleeve monopole antenna for indoor base station application " in 2010 has set forth this problem from different sides respectively.The TM of Circular Microstrip Antennas set forth in the article " Design and analysis of a low-profile and broadband microstrip monopolar patch antenna " that the people such as Juhua Liu, Quan Xue are published on 2013IEEE Transactions on Antennas and Propagation
01, TM
02, TM
21and other higher modes can produce the mechanism of omni-directional conical lobe figure (OCBP).Nineteen ninety-five, the article " Microstrip ring antennas operating at higher order modes for mobile communications " that the people such as Batchelor, J.C. are published on IEE Proc.Microwave Antennas Propagation proposes the TM utilizing circular ring structure antenna
21pattern produces omni-directional conical lobe figure (OCBP).
But, utilize the TM of rectangular microstrip antenna
02and TM
20the design that pattern produces omni-directional conical lobe figure (OCBP) also rarely has report.Therefore, the TM of rectangular microstrip antenna is conceived to
02and TM
20the work that the Antenna Design that pattern produces omnidirectional conical lobe figure (OCBP) is still highly studied.
Summary of the invention
The object of the invention is to propose one and utilize rectangular microstrip antenna TM
02and TM
20pattern produces the method for omni-directional conical lobe figure (OCBP).This antenna utilizes two coaxial probe constant amplitude in-phase current excitation TM
02and TM
20pattern is to produce omni-directional conical lobe figure.The benefit of this method is to realize the higher isolation of two ports and good impedance matching.
The present invention is achieved by the following technical solutions: the rectangular microstrip antenna working in higher mode in a kind of Mobile solution, comprise cylinder shape medium substrate, be located at the radiant body in dielectric substrate front, be located at the ground plate at the dielectric substrate back side and antenna carried out to two coaxial probes of feed, it is characterized in that, described ground plate is the round metal grounding plate of overwrite media base lower surface.
The outer conductor of described coaxial probe connects ground plate, and inner wire is connected with the distributing point on radiant body through medium substrate.
Described radiant body is square-shaped metal paster, radiant body is provided with two distributing points, and distributing point is symmetrical about radiant body diagonal, is etched with a measure-alike annular slot respectively, does not have metallics in gap centered by two distributing points.
The present invention utilizes two coaxial probe constant amplitude in-phase currents to encourage antenna.The higher isolation of two ports and good impedance matching is reached by the size adjusting annular slot width in the position of two feed port and radiation patch.
Compared to the prior art, it is actively with obvious to the improvement of stuctures and properties in the present invention.TM is produced by the suitable selection of the excitation of dual-port constant amplitude in-phase current and annular slot
02and TM
20pattern, and reach the higher isolation of two-port and good impedance matching.The present invention ensure that the simplification of antenna form and feed structure while realizing re-set target, has high use value and application prospect.
Accompanying drawing explanation
Fig. 1 (a) is embodiment of the present invention Facad structure schematic diagram;
Fig. 1 (b) is embodiment of the present invention side structure schematic diagram;
Fig. 2 is the two-port return loss of the embodiment of the present invention and the emulation of isolation and measured result schematic diagram;
Fig. 3 (a) is for the embodiment of the present invention is in the x-z face Direction Pattern Simulation result schematic diagram of 3.81GHz;
Fig. 3 (b) is for the embodiment of the present invention is at the horizontal radiation pattern simulation result schematic diagram of the horizon elevation angle 55 degree of 3.81GHz;
Fig. 4 is the gain simulation result schematic diagram of the embodiment of the present invention.
Fig. 5 is the radiation efficiency simulation result schematic diagram of the embodiment of the present invention.
Drawing reference numeral illustrates: 1. dielectric substrate, 2. distributing point, 3. distributing point, 4. radiant body, 5. ground plate, 6. annular slot, 7. coaxial probe.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The example structure schematic diagram of the rectangular microstrip antenna of higher mode is worked in as shown in Fig. 1 (a) He Fig. 1 (b) in Mobile solution of the present invention, this antenna comprises a cylinder shape medium substrate 1, antenna feed point 2,3, be located at the radiant body 4 of dielectric substrate front center position, be located at the ground plate 5 at the dielectric substrate back side and antenna carried out to two coaxial probes 7 of feed, the annular slot 6 etched centered by two distributing points.
In Fig. 1, the diameter of thickness to be the relative dielectric constant of 2mm the be cylinder shape medium substrate 1 of 2.2 is d=100mm; Dielectric substrate head-on radiation body 4 is of a size of a=b=50mm; Antenna feed point 2,3 is to center position l=13mm; The radius of annular slot 6 is r
s=3.5mm, gap width is w
s=0.2mm.Concrete choosing of size is only selected by the embodiment of the present invention herein, for a person skilled in the art, can carry out suitable adjustment according to actual needs to the size of each several part.
Isolation and the impedance matching of the present invention by regulating the position of distributing point 2,3 and the size of annular slot 6 to regulate antenna current feed port.
The emulation of embodiment two-port return loss and isolation and measured curve as shown in Figure 2, port one, 2 impedance bandwidth measured value be 2.1% (3.78 – 3.85GHz), two-port isolation measured value is better than-20dB in impedance bandwidth.
Embodiment, can be found out in the x-z face Direction Pattern Simulation result of 3.81GHz as shown in Fig. 3 (a), and when gain maximum is 55 degree at the elevation angle, cross polarization is than on 20dB.
Embodiment is at the horizontal radiation pattern simulation result of the horizon elevation angle 55 degree of 3.81GHz as shown in Fig. 3 (b), and antenna omnidirectional is better, and directional diagram deviation in roundness is only 0.9dB.
As shown in Figure 4, maximum gain is at 5.80dBi in impedance bandwidth for antenna, and now frequency is 3.81GHz for the gain simulation result of embodiment.
As shown in Figure 5, shows maximum radiation efficiency is more than 0.99 in impedance bandwidth for antenna, and average radiation efficiency is more than 0.96 for the radiation efficiency simulation result of embodiment.
The simulation result display of this embodiment, this antenna well reaches the requirement of high-gain omni-directional conical lobe, and this antenna structure is simple in addition, feed convenient, compact conformation, has good using value.
Claims (3)
1. in a Mobile solution, work in the rectangular microstrip antenna of higher mode, comprise cylinder shape medium substrate, be located at the radiant body in dielectric substrate front, be located at the ground plate at the dielectric substrate back side and antenna carried out to two coaxial probes of feed, it is characterized in that, described ground plate is the round metal grounding plate of overwrite media base lower surface, described radiant body is square-shaped metal paster, radiant body is provided with two distributing points, distributing point is symmetrical about radiant body diagonal, is etched with a measure-alike annular slot centered by two distributing points respectively.
2. work in the rectangular microstrip antenna of higher mode in a kind of Mobile solution as claimed in claim 1, the outer conductor of described coaxial probe connects ground plate, and inner wire is connected with the distributing point on radiant body through medium substrate.
3. work in the rectangular microstrip antenna of higher mode in a kind of Mobile solution as claimed in claim 1, in described annular slot, there is no metallics.
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|---|---|---|---|
| CN201410475182.8A CN104269616B (en) | 2014-09-17 | 2014-09-17 | The rectangular microstrip antenna of higher mode is worked in Mobile solution |
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|---|---|---|---|
| CN201410475182.8A CN104269616B (en) | 2014-09-17 | 2014-09-17 | The rectangular microstrip antenna of higher mode is worked in Mobile solution |
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| CN104269616A true CN104269616A (en) | 2015-01-07 |
| CN104269616B CN104269616B (en) | 2017-10-17 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882672A (en) * | 2015-05-28 | 2015-09-02 | 电子科技大学 | Wide bandwidth wave beam circular polarization Yagi-microstrip antenna |
| WO2016180183A1 (en) * | 2015-08-04 | 2016-11-17 | 中兴通讯股份有限公司 | Broadband antenna |
| CN108550985A (en) * | 2018-03-14 | 2018-09-18 | 中山大学 | A kind of omnidirectional GPS paster antennas |
| CN108598693A (en) * | 2018-04-09 | 2018-09-28 | 重庆邮电大学 | Impedance easily matched broadband circle polarized UHF RFID readers antenna |
| CN109546323A (en) * | 2018-12-12 | 2019-03-29 | 东莞理工学院 | A kind of dual-band dual-polarized common reflector applied to wireless communication system |
| CN109713447A (en) * | 2018-02-09 | 2019-05-03 | 北京邮电大学 | A kind of dual polarized antenna based on co-planar waveguide terminal short circuit couple feed |
| CN109904584A (en) * | 2019-01-29 | 2019-06-18 | 中国电子科技集团公司第三十八研究所 | A kind of dual polarized microstrip patch antenna unit and antenna array |
| CN110233338A (en) * | 2019-05-22 | 2019-09-13 | 成都海澳科技有限公司 | The Miniaturized Microstrip Antennas of slot-coupled ground connection |
| CN110265782A (en) * | 2019-05-22 | 2019-09-20 | 成都海澳科技有限公司 | Double coupled microstrip antennas and aerial array |
| CN110739533A (en) * | 2019-11-18 | 2020-01-31 | 深圳市易探科技有限公司 | double-panel dual-polarized antenna |
| CN111370867A (en) * | 2020-03-13 | 2020-07-03 | 昆山新仟年微波技术有限公司 | Double-frequency millimeter wave microstrip antenna based on single-layer medium low profile and multiple short circuit pins |
| WO2021012299A1 (en) * | 2019-07-22 | 2021-01-28 | 深圳市易探科技有限公司 | Dual-polarized microstrip antenna for mobile sensor and signal transceiving method therefor |
| CN114597640A (en) * | 2022-02-16 | 2022-06-07 | 南京信息工程大学 | Polarization reconfigurable antenna |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882672A (en) * | 2015-05-28 | 2015-09-02 | 电子科技大学 | Wide bandwidth wave beam circular polarization Yagi-microstrip antenna |
| WO2016180183A1 (en) * | 2015-08-04 | 2016-11-17 | 中兴通讯股份有限公司 | Broadband antenna |
| CN106450710A (en) * | 2015-08-04 | 2017-02-22 | 中兴通讯股份有限公司 | Broadband antenna |
| CN109713447A (en) * | 2018-02-09 | 2019-05-03 | 北京邮电大学 | A kind of dual polarized antenna based on co-planar waveguide terminal short circuit couple feed |
| CN108550985A (en) * | 2018-03-14 | 2018-09-18 | 中山大学 | A kind of omnidirectional GPS paster antennas |
| CN108598693A (en) * | 2018-04-09 | 2018-09-28 | 重庆邮电大学 | Impedance easily matched broadband circle polarized UHF RFID readers antenna |
| CN109546323A (en) * | 2018-12-12 | 2019-03-29 | 东莞理工学院 | A kind of dual-band dual-polarized common reflector applied to wireless communication system |
| CN109904584B (en) * | 2019-01-29 | 2021-08-03 | 中国电子科技集团公司第三十八研究所 | Dual-polarized microstrip patch antenna unit and antenna array |
| CN109904584A (en) * | 2019-01-29 | 2019-06-18 | 中国电子科技集团公司第三十八研究所 | A kind of dual polarized microstrip patch antenna unit and antenna array |
| CN110233338A (en) * | 2019-05-22 | 2019-09-13 | 成都海澳科技有限公司 | The Miniaturized Microstrip Antennas of slot-coupled ground connection |
| CN110265782A (en) * | 2019-05-22 | 2019-09-20 | 成都海澳科技有限公司 | Double coupled microstrip antennas and aerial array |
| WO2021012299A1 (en) * | 2019-07-22 | 2021-01-28 | 深圳市易探科技有限公司 | Dual-polarized microstrip antenna for mobile sensor and signal transceiving method therefor |
| CN110739533A (en) * | 2019-11-18 | 2020-01-31 | 深圳市易探科技有限公司 | double-panel dual-polarized antenna |
| CN111370867A (en) * | 2020-03-13 | 2020-07-03 | 昆山新仟年微波技术有限公司 | Double-frequency millimeter wave microstrip antenna based on single-layer medium low profile and multiple short circuit pins |
| CN114597640A (en) * | 2022-02-16 | 2022-06-07 | 南京信息工程大学 | Polarization reconfigurable antenna |
| CN114597640B (en) * | 2022-02-16 | 2024-01-12 | 南京信息工程大学 | Polarization reconfigurable antenna |
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| CN104269616B (en) | 2017-10-17 |
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Effective date of registration: 20200703 Address after: 050200 No.8, zone B, No.99, Yuyuan Road, Luquan Economic Development Zone, Shijiazhuang City, Hebei Province Patentee after: HEBEI JINGHE ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 611731 Chengdu province high tech Zone (West) West source Avenue, No. 2006 Patentee before: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY |