CN105186116A - Wideband monopole microstrip antenna - Google Patents
Wideband monopole microstrip antenna Download PDFInfo
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- CN105186116A CN105186116A CN201510424400.XA CN201510424400A CN105186116A CN 105186116 A CN105186116 A CN 105186116A CN 201510424400 A CN201510424400 A CN 201510424400A CN 105186116 A CN105186116 A CN 105186116A
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- short circuit
- medium substrate
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Abstract
The invention discloses a wideband monopole microstrip antenna. The wideband monopole microstrip antenna includes a dielectric substrate, a circular radiating patch, a parasitic circular ring radiating patch, a metal grounding plate and a coaxial line, wherein the circular radiating patch and the parasitic circular ring radiating patch are printed on the upper surface of the dielectric substrate, and the metal grounding plate is arranged at the lower surface of the dielectric substrate and is connected with the bottom end of the dielectric substrate; and feeding holes are formed in the dielectric substrate; and the radiating units with short-circuiting holes, namely, the circular radiating patch and the parasitic circular ring radiating patch, can generate two working modes (TM01 and TM02) and four resonant frequencies, and therefore, the bandwidth of the antenna can be effectively increased. The short-circuiting holes are adopted, and therefore, the equivalent inductance of the antenna can change, and the TM01 mode can be enabled; the parasitic circular ring radiating patch with short-circuiting holes is additionally adopted, so that the capacitance distribution of the antenna can be changed, and therefore, the novel resonant mode TM02 can be exited, and the band of the antenna can be expanded.
Description
Technical field
The present invention relates to antenna technical field, more specifically, relate to a kind of sub-microstrip antenna of wideband monopole that can be used in WLAN radio communication.
Background technology
Antenna is an important component part in radio communication, and the quality of antenna performance directly has influence on the normal operation of whole communication system.It is little that monopole microstrip antenna has volume, low section, low cost, be easy to manufacture, the feature such as high-gain and omnidirectional radiation, therefore obtain research and development widely at recent two decades.But, along with the development of wireless communication technology, communication system not only requires high-quality transferring voice, data and image information, also require that communication system is broadband and traditional monopole microstrip antenna impedance bandwidth is narrower simultaneously, thus limit its application in a communications system, therefore how to expand the focus that the beamwidth of antenna becomes current research.Existing document proposes certain methods about raising bandwidth, such as increases dielectric thickness and reduces substrate dielectric constant etc., but these methods can make radiation pattern worsen and excite some higher modes.Therefore in the urgent need to finding a kind of new method to increase the beamwidth of antenna.
Summary of the invention
The object of the invention is to the feature overcoming existing monopole microstrip antenna narrow bandwidth, propose the sub-microstrip antenna of a kind of wideband monopole, this antenna can inspire 4 resonance points and be operated in TM
01and TM
02under pattern, thus improve the service behaviour of antenna and expand its application category.
In order to achieve the above object, the technical scheme that the present invention takes is:
The sub-microstrip antenna of a kind of wideband monopole, comprise medium substrate, circular radiation paster, parasitic annulus radiation patch, metal ground plate and coaxial line, described circular radiation paster, parasitic annulus radiation patch are printed on medium substrate upper surface; Described metal ground plate is arranged on medium substrate lower surface, is connected with medium substrate bottom, and described medium substrate offers power feed hole;
The circle centre position of described circular radiation paster offers circular hole, metal ground plate is established and is offered metallic ground plate hole, power feed hole on the center of circle of described circular radiation paster, the center of circle of parasitic annulus radiation patch, metallic ground plate hole and medium substrate is located along the same line, and carries out connection realize antenna coaxial feed by coaxial line;
The radius of described circular radiation paster is less than the inner radius of parasitic annulus radiation patch;
Described circular radiation paster is also provided with the first short circuit hole, described first short circuit hole be evenly distributed on radius be r ' circumferentially, the medium substrate corresponding with this first short circuit hole position offers the second corresponding short circuit hole, and circular radiation paster, medium substrate and metal ground plate couple together through first and second short circuit hole by short circuit nail;
Described parasitic annulus radiation patch is also provided with the 3rd short circuit hole, described 3rd short circuit hole be evenly distributed on radius be R ' circumferentially, the medium substrate corresponding with the 3rd short circuit hole position offers the 4th corresponding short circuit hole, parasitic annulus radiation patch, medium substrate and metal ground plate couple together through third and fourth short circuit hole by short circuit nail.
In technique scheme, band short circuit hole radiating element (circular radiation paster, parasitic annulus radiation patch) can produce 2 mode of operation (TM
01and TM
02) and 4 resonance frequencys.
Further, the shape of described medium substrate is circular and thickness is even, and the circle centre position of its medium substrate is power feed hole.
Further, described metal ground plate shape is circular, and metallic ground board diameter is identical with medium substrate diameter.
Further, the width of described parasitic annulus radiation patch is R1=13 ~ 13.5mm, the 3rd short circuit hole position be apart from inside parasitic annulus radiation patch for b=5.8 ~ 6mm place.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
1. the present invention adopts and open short circuit hole in radiation patch (circular radiation paster, parasitic annulus radiation patch), thus the distributed inductance on aerial radiation floor changes, and makes antenna excite new mode of resonance TM
01, therefore effectively add the beamwidth of antenna.
2. the present invention adds the parasitic annulus radiation patch of new band short circuit hole on existing circular radiation paster, has changed antenna capacitance distribution, thus has motivated new mode of resonance TM
02, expanded antenna frequency band.
3. the present invention increases bandwidth by increasing resonance point mode on existing monopole microstrip antenna basis, and does not change the isotropic directivity radiation patterns of antenna.
4. monopole microstrip antenna structure of the present invention is simple, small volume, and low section is processed with being easy to, and has actual using value.
Accompanying drawing explanation
Fig. 1 is monopole microstrip antenna overall structure profile of the present invention.
Fig. 2 is surface structure schematic diagram of the present invention.
Fig. 3 is lower surface configuration schematic diagram of the present invention.
Fig. 4 is antenna transmission coefficient S of the present invention
11simulation result figure.
Fig. 5 is the E surface radiation directional diagram of the present invention when frequency 5.8GHz.
Fig. 6 is the H surface radiation directional diagram of the present invention when frequency 5.8GHz.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment technical scheme of the present invention is described further.
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is monopole microstrip antenna overall structure profile of the present invention, Fig. 2 is surface structure schematic diagram of the present invention, Fig. 3 is lower surface configuration schematic diagram of the present invention, with reference to figure 1,2 and 3, the sub-microstrip antenna of wideband monopole of the present invention, comprises medium substrate 1, circular radiation paster 2, parasitic annulus radiation patch 3, metal ground plate 4 and coaxial line 5, described circular radiation paster 2, parasitic annulus radiation patch 3 are printed on medium substrate 1 upper surface; Described metal ground plate 4 is arranged on medium substrate 1 lower surface, is connected with medium substrate 1 bottom, and described medium substrate 1 offers power feed hole;
The circle centre position of described circular radiation paster 2 offers circular hole, metal ground plate 4 is established and is offered metallic ground plate hole, power feed hole on the center of circle of described circular radiation paster 2, the center of circle of parasitic annulus radiation patch 3, metallic ground plate hole and medium substrate 1 is located along the same line, and carries out connection realize antenna coaxial feed by coaxial line 5;
The radius of described circular radiation paster 2 is less than the inner radius of parasitic annulus radiation patch 3;
Described circular radiation paster 2 is also provided with the first short circuit hole, described first short circuit hole be evenly distributed on radius be r circumferentially, the medium substrate 1 corresponding with this first short circuit hole position offers the second corresponding short circuit hole, and circular radiation paster 2, medium substrate 1 couple together with metal ground plate 4 through first and second short circuit hole by short circuit nail;
Described parasitic annulus radiation patch 3 is also provided with the 3rd short circuit hole, described 3rd short circuit hole be evenly distributed on radius be R circumferentially, the medium substrate 1 corresponding with the 3rd short circuit hole position offers the 4th corresponding short circuit hole, parasitic annulus radiation patch 3, medium substrate 1 couple together with metal ground plate 4 through third and fourth short circuit hole by short circuit nail.
In the present embodiment, the shape of described medium substrate 1 is circular and thickness is even, and the circle centre position of its medium substrate 1 is power feed hole; And described metal ground plate 4 shape is circular, and metal ground plate 4 diameter is identical with medium substrate 1 diameter.
The radius of the circular radiation paster 2 of above-mentioned band short circuit hole is R
p=18mm, short circuit hole size is wherein diameter r=0.8mm, and short circuit hole position is and circular radiation paster 2 round dot distance a=12.7 ~ 12.8mm.
Parasitic annular width in the parasitic radiation annulus paster 3 of described band short circuit hole is R1=13 ~ 13.5mm, and short circuit aperture is r=0.8mm, and wherein the 3rd short circuit hole position is b=5.8 ~ 6mm inside distance parasitic radiation annulus paster 3.Between described parasitic radiation annulus paster 3 and circular radiation paster 2, width is w=3mm.
Short circuit hole quantity N=11 on above-mentioned circular radiation paster 2, short circuit hole quantity M=32 ~ 36 on parasitic radiation annulus paster 3.
In the present embodiment, described medium substrate 1 is FR4 epoxide resin material, and relative dielectric constant is ε
r=2.65, thickness is h=1.5mm, radius R
g=60mm, its center is provided with power feed hole, and pore size is 1.27mm.
The present invention adopts electromagnetic simulation software ANSYSHFSS15.0 to carry out emulation experiment, and experimental result shows that the parameters of antenna has very large impact to resonance frequency and impedance matching.Carry out parameter optimization by HFSS to antenna, the optimum size parameter obtaining antenna is as shown in table 1.
Table 1 monopole microstrip antenna of the present invention optimum size parameter list
| Parameter | Size |
| R p | 18mm |
| r | 0.8mm |
| a | 12.8mm |
| R1 | 13.5mm |
| b | 5.9mm |
| N | 13 |
| M | 36 |
| h | 1.5mm |
| R g | 60mm |
| ε r | 2.65 |
According to above every optimum optimization parameter, obtained the reflection coefficient S of antenna by HFSS emulation
11curve chart and the antenna pattern on 5.8GHz.
Fig. 4 is monopole microstrip antenna emission ratio S of the present invention
11simulation result figure.As can be seen from the figure, antenna creates 4 resonance frequencys, is respectively 4.53GHz, 4.87GHz, 5.89GHz and 6.56GHz.The operating frequency range of this antenna is 4.53GHz ~ 6.56GHz, and relative bandwidth is 36.6%.Fig. 5 is the E surface radiation directional diagram of the present invention when frequency 5.85GHz, and Fig. 6 is the H surface radiation directional diagram of the present invention when frequency 5.85GHz.
Above-mentioned explanation illustrate and describes preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention be not limited to herein disclosed by antenna size and form, should not regard the eliminating to other embodiments as.And the change of the radiating element size to monopole microstrip antenna of the present invention that those skilled in the art carry out, short circuit hole number and dielectric substrate thickness and change do not depart from the spirit and scope of the present invention, then all should in the protection range of claims of the present invention.
Claims (4)
1. the sub-microstrip antenna of wideband monopole, it is characterized in that, comprise medium substrate (1), circular radiation paster (2), parasitic annulus radiation patch (3), metal ground plate (4) and coaxial line (5), described circular radiation paster (2), parasitic annulus radiation patch (3) are printed on medium substrate (1) upper surface; Described metal ground plate (4) is arranged on medium substrate (1) lower surface, is connected with medium substrate (1) bottom, and (1) offers power feed hole to described medium substrate;
The circle centre position of described circular radiation paster (2) offers circular hole, metal ground plate (4) is established and is offered metallic ground plate hole, power feed hole on the center of circle of described circular radiation paster (2), the center of circle of parasitic annulus radiation patch (3), metallic ground plate hole and medium substrate (1) is located along the same line, and carries out connection realize antenna coaxial feed by coaxial line (5);
The radius of described circular radiation paster (2) is less than the inner radius of parasitic annulus radiation patch (3);
Described circular radiation paster (2) is also provided with the first short circuit hole, described first short circuit hole be evenly distributed on radius be r ' circumferentially, the medium substrate (1) corresponding with this first short circuit hole position offers the second corresponding short circuit hole, and circular radiation paster (2), medium substrate (1) couple together with metal ground plate (4) through first and second short circuit hole by short circuit nail;
Described parasitic annulus radiation patch (3) is also provided with the 3rd short circuit hole, described 3rd short circuit hole be evenly distributed on radius be R ' circumferentially, the medium substrate (1) corresponding with the 3rd short circuit hole position offers the 4th corresponding short circuit hole, and parasitic annulus radiation patch (3), medium substrate (1) couple together with metal ground plate (4) through third and fourth short circuit hole by short circuit nail.
2. the sub-microstrip antenna of wideband monopole according to claim 1, is characterized in that, the shape of described medium substrate (1) is circular and thickness is even, and the circle centre position of its medium substrate (1) is power feed hole.
3. the sub-microstrip antenna of wideband monopole according to claim 2, is characterized in that, described metal ground plate (4) shape is circular, and metal ground plate (4) diameter is identical with medium substrate (1) diameter.
4. the sub-microstrip antenna of wideband monopole according to claim 1, is characterized in that, the width of described parasitic annulus radiation patch (3) is
r1=13 ~ 13.5mm, the 3rd short circuit hole position is for apart from parasitic annulus radiation patch (3) inner side being
b=5.8 ~ 6mm place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510424400.XA CN105186116A (en) | 2015-07-16 | 2015-07-16 | Wideband monopole microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510424400.XA CN105186116A (en) | 2015-07-16 | 2015-07-16 | Wideband monopole microstrip antenna |
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| Publication Number | Publication Date |
|---|---|
| CN105186116A true CN105186116A (en) | 2015-12-23 |
Family
ID=54908059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510424400.XA Pending CN105186116A (en) | 2015-07-16 | 2015-07-16 | Wideband monopole microstrip antenna |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207480A (en) * | 2016-08-31 | 2016-12-07 | 中国人民解放军国防科学技术大学 | Complete polarization single-pass band bilateral inhales ripple bands complex Meta Materials and antenna house |
| WO2018036225A1 (en) * | 2016-08-23 | 2018-03-01 | 成都中亚通茂科技股份有限公司 | Sectional-load shortwave antenna capable of automatically adjusting antenna oscillator |
| WO2018036240A1 (en) * | 2016-08-23 | 2018-03-01 | 成都中亚通茂科技股份有限公司 | Ultra-short wave antenna being both active and passive in frequency range of 30 mhz-1350 mhz |
| CN107749519A (en) * | 2017-08-08 | 2018-03-02 | 北京航空航天大学 | Linear polarization polarization tilt angle continuously adjustabe circle parasitic patch antenna based on liquid metal |
| CN108281775A (en) * | 2017-12-19 | 2018-07-13 | 西安空间无线电技术研究所 | A kind of plane conelike beam antenna with multimode resonance |
| CN108461922A (en) * | 2018-01-31 | 2018-08-28 | 南昌大学 | A kind of paster antenna generating multi-modal vortex wave |
| CN108987923A (en) * | 2018-07-19 | 2018-12-11 | 上海海积信息科技股份有限公司 | A kind of circular polarisation satellite navigation aerial and adjustment method |
| CN109742540A (en) * | 2019-02-26 | 2019-05-10 | 山西大学 | A kind of miniaturization high-isolation multi-source multibeam antenna |
| CN109888485A (en) * | 2019-02-26 | 2019-06-14 | 山西大学 | A kind of compact low section multi-beam microstrip antenna |
| CN111541041A (en) * | 2020-06-03 | 2020-08-14 | 深圳大学 | Broadband patch antenna with stable high gain |
| CN111600117A (en) * | 2020-05-12 | 2020-08-28 | 中天宽带技术有限公司 | Dielectric resonator antenna |
| CN111600122A (en) * | 2020-05-13 | 2020-08-28 | 中天宽带技术有限公司 | Patch antenna |
| CN112117530A (en) * | 2020-07-23 | 2020-12-22 | 中山大学 | Back cavity type patch antenna based on substrate integrated waveguide |
| WO2021082704A1 (en) * | 2019-10-29 | 2021-05-06 | 深圳Tcl新技术有限公司 | Antenna and door lock |
| CN113097704A (en) * | 2021-03-16 | 2021-07-09 | 华南理工大学 | Low-profile dual-frequency common-caliber monopole antenna based on cross-layer folding structure |
| CN113839182A (en) * | 2020-06-24 | 2021-12-24 | 大唐移动通信设备有限公司 | Antenna and base station |
| CN114552192A (en) * | 2022-02-24 | 2022-05-27 | 京东方科技集团股份有限公司 | Antenna structure and electronic equipment |
| CN114883793A (en) * | 2022-04-24 | 2022-08-09 | 西安交通大学 | Broadband and high-power-capacity patch antenna based on capacitive coupling feed |
| CN115084860A (en) * | 2022-07-12 | 2022-09-20 | 东南大学 | Broadband millimeter wave horizontally polarized omnidirectional annular patch antenna |
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| CN101895010A (en) * | 2010-06-13 | 2010-11-24 | 南京邮电大学 | Coplanar waveguide feed wideband printed monopole antenna |
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| CN101895010A (en) * | 2010-06-13 | 2010-11-24 | 南京邮电大学 | Coplanar waveguide feed wideband printed monopole antenna |
Non-Patent Citations (1)
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| BIN WEN 等: ""A Low-Profile and Wideband Monopolar Circular Via-Loaded Patch Antenna Coupled with Via-Loaded Ring"", 《2015 IEEE INTERNATIONAL WIRELESS SYMPOSIUM (IWS)》 * |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018036225A1 (en) * | 2016-08-23 | 2018-03-01 | 成都中亚通茂科技股份有限公司 | Sectional-load shortwave antenna capable of automatically adjusting antenna oscillator |
| WO2018036240A1 (en) * | 2016-08-23 | 2018-03-01 | 成都中亚通茂科技股份有限公司 | Ultra-short wave antenna being both active and passive in frequency range of 30 mhz-1350 mhz |
| CN106207480A (en) * | 2016-08-31 | 2016-12-07 | 中国人民解放军国防科学技术大学 | Complete polarization single-pass band bilateral inhales ripple bands complex Meta Materials and antenna house |
| CN106207480B (en) * | 2016-08-31 | 2018-12-11 | 中国人民解放军国防科学技术大学 | Complete polarization single-pass band bilateral inhales wave bands complex Meta Materials and antenna house |
| CN107749519A (en) * | 2017-08-08 | 2018-03-02 | 北京航空航天大学 | Linear polarization polarization tilt angle continuously adjustabe circle parasitic patch antenna based on liquid metal |
| CN107749519B (en) * | 2017-08-08 | 2021-04-06 | 北京航空航天大学 | Circular parasitic patch antenna with continuously adjustable linear polarization inclination angle based on liquid metal |
| CN108281775A (en) * | 2017-12-19 | 2018-07-13 | 西安空间无线电技术研究所 | A kind of plane conelike beam antenna with multimode resonance |
| CN108461922A (en) * | 2018-01-31 | 2018-08-28 | 南昌大学 | A kind of paster antenna generating multi-modal vortex wave |
| CN108987923A (en) * | 2018-07-19 | 2018-12-11 | 上海海积信息科技股份有限公司 | A kind of circular polarisation satellite navigation aerial and adjustment method |
| CN109888485A (en) * | 2019-02-26 | 2019-06-14 | 山西大学 | A kind of compact low section multi-beam microstrip antenna |
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| WO2021082704A1 (en) * | 2019-10-29 | 2021-05-06 | 深圳Tcl新技术有限公司 | Antenna and door lock |
| CN111600117B (en) * | 2020-05-12 | 2023-05-02 | 中天宽带技术有限公司 | Dielectric resonator antenna |
| CN111600117A (en) * | 2020-05-12 | 2020-08-28 | 中天宽带技术有限公司 | Dielectric resonator antenna |
| CN111600122A (en) * | 2020-05-13 | 2020-08-28 | 中天宽带技术有限公司 | Patch antenna |
| CN111541041B (en) * | 2020-06-03 | 2022-04-15 | 深圳大学 | Broadband patch antenna with stable high gain |
| CN111541041A (en) * | 2020-06-03 | 2020-08-14 | 深圳大学 | Broadband patch antenna with stable high gain |
| CN113839182A (en) * | 2020-06-24 | 2021-12-24 | 大唐移动通信设备有限公司 | Antenna and base station |
| CN112117530A (en) * | 2020-07-23 | 2020-12-22 | 中山大学 | Back cavity type patch antenna based on substrate integrated waveguide |
| CN113097704A (en) * | 2021-03-16 | 2021-07-09 | 华南理工大学 | Low-profile dual-frequency common-caliber monopole antenna based on cross-layer folding structure |
| CN114552192A (en) * | 2022-02-24 | 2022-05-27 | 京东方科技集团股份有限公司 | Antenna structure and electronic equipment |
| CN114552192B (en) * | 2022-02-24 | 2023-09-26 | 京东方科技集团股份有限公司 | Antenna structure and electronic equipment |
| CN114883793A (en) * | 2022-04-24 | 2022-08-09 | 西安交通大学 | Broadband and high-power-capacity patch antenna based on capacitive coupling feed |
| CN115084860A (en) * | 2022-07-12 | 2022-09-20 | 东南大学 | Broadband millimeter wave horizontally polarized omnidirectional annular patch antenna |
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Application publication date: 20151223 |