CN102117964B - Double-frequency antenna - Google Patents
Double-frequency antenna Download PDFInfo
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- CN102117964B CN102117964B CN2011100591313A CN201110059131A CN102117964B CN 102117964 B CN102117964 B CN 102117964B CN 2011100591313 A CN2011100591313 A CN 2011100591313A CN 201110059131 A CN201110059131 A CN 201110059131A CN 102117964 B CN102117964 B CN 102117964B
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- upper strata
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Abstract
The invention relates to an antenna which comprises an upper-layer microstrip antenna, a lower-layer microstrip antenna and a baffle board, wherein the upper-layer microstrip antenna and the lower-layer microstrip antenna are overlapped and then fixed on the baffle board through screws. The double-frequency antenna provided by the invention is easy to realize and has small volume, favorable axial ratio bandwidth and low elevation gain.
Description
Technical field
The present invention relates to field of antenna, relate in particular to a kind of dual-band antenna that is applied to the hand-held receiving equipment in satellite navigation and location system.
Background technology
Along with the high speed development of Satellite Navigation Technique with in the extensive use of every field, the antenna performance of the hand-held receiving equipment in the satellite navigation and location system of high-acruracy survey has also been proposed more and more higher requirement, be mainly manifested in:
1, good circular polarization performance
In satellite communication,, because circularly polarised wave rain, snow decay are little, penetrate the ionosphere ability strong, be not subjected to the farad ground effects of terrestrial pole magnetic field outbreak, satellite communication is general, and what use is the signal of circular polarization.So also should being operated in good circular polarization state accordingly, antenna could mate preferably with system.
2, can accept multiple-frequency signal
Ionosphere delay is the main factor that affects global positioning system (Global Positioning System, GPS) absolute fix, utilizes the reception two-frequency signal to carry out difference processing, can effectively slacken ionospheric impact, promotes positioning precision.
3, miniaturization, simple and reliable for structure
Because handheld device has miniaturization, lightening trend, the space that is used for containing antenna is also more and more less, so antenna needs and can under the prerequisite of guaranteed performance reliability, strictly control volume.
4, low elevation gain
In satellite communication, require antenna can be good at receiving satellite-signal when the elevation angle that is not less than 5 °, this just requires the gain of antenna when the low elevation angle to want enough high.
Summary of the invention
The purpose of this invention is to provide a kind of dual-band antenna, to meet hand-held receiving equipment in satellite navigation and location system to the requirement of antenna as far as possible.The present invention not only is easy to realize, and volume is little, has good axial ratio bandwidth and low elevation gain.
The invention provides a kind of dual-band antenna, comprise upper strata microstrip antenna, lower floor's microstrip antenna and reflecting plate, be screwed on described reflecting plate after described upper strata microstrip antenna and lower floor's microstrip antenna are overlapping.
Preferably, above-mentioned upper strata microstrip antenna and described lower floor microstrip antenna are all presented the pin feed by list.
Preferably, one group of diagonal angle of the radiation patch of the radiation patch of above-mentioned upper strata microstrip antenna and above-mentioned lower floor microstrip antenna is symmetrical corner cut.
Preferably, the corner cut position of the radiation patch of the radiation patch of above-mentioned upper strata microstrip antenna and above-mentioned lower floor microstrip antenna is crisscross arranged.
Preferably, above-mentioned antenna also comprises dielectric layer between above-mentioned lower floor microstrip antenna and said reflection plate.
Preferably, above-mentioned antenna also comprises a shielding box, and above-mentioned shielding box is arranged under said reflection plate.
Preferably, the working frequency range of above-mentioned upper strata microstrip antenna is greater than the working frequency range of above-mentioned lower floor microstrip antenna.
Preferably, above-mentioned lower floor's microstrip antenna center is provided with the metallization via hole, and the feedback pin of above-mentioned upper strata microstrip antenna passes above-mentioned metallization via hole.
Preferably, the radiation patch of above-mentioned upper strata microstrip antenna and the center of dielectric substrate do not overlap.
Preferably, the radiation patch of above-mentioned lower floor microstrip antenna and the center of dielectric substrate do not overlap.
Utilization of the present invention all realizes two-frequency operation with corresponding two different frequencies of upper and lower layer microstrip antenna of separate single feedback pin direct feed, the corresponding high band of upper strata microstrip antenna, the corresponding low-frequency range of lower floor's microstrip antenna, simultaneously upper and lower layer microstrip antenna carried out the corner cut perturbation, realized circular polarization work; The present invention also is provided with the metallization via hole at lower floor's microstrip antenna center, makes antenna possess good earth; Emulation and measured result all show, the above-mentioned antenna of the present invention has good axial ratio bandwidth and low elevation gain.
Description of drawings
Fig. 1 is the tangent plane schematic diagram of the preferred embodiment of antenna of the present invention;
Fig. 2 is the front schematic view of the upper strata microstrip antenna of the described antenna of Fig. 1;
Fig. 3 is the front schematic view of lower floor's microstrip antenna of the described antenna of Fig. 1;
Fig. 4 is the emulation axial ratio figure of the upper strata microstrip antenna of the described antenna of Fig. 1;
Fig. 5 is the simulated gain figure of the upper strata microstrip antenna of the described antenna of Fig. 1;
Fig. 6 is the emulation axial ratio figure of lower floor's microstrip antenna of the described antenna of Fig. 1;
Fig. 7 is the simulated gain figure of lower floor's microstrip antenna of the described antenna of Fig. 1.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Further illustrate technical scheme of the present invention below in conjunction with Figure of description and specific embodiment.
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, be the tangent plane schematic diagram of the preferred embodiment of antenna of the present invention; The present embodiment comprises upper strata microstrip antenna 1, lower floor's microstrip antenna 2, dielectric layer 3, reflecting plate 4 and shielding box 5; In figure, 11 is the radiation patch of upper strata microstrip antenna 1, and 12 is the dielectric substrate of upper strata microstrip antenna 1,13 is the feedback pin of upper strata microstrip antenna 1, wherein, radiation patch 11De center does not overlap with dielectric substrate 12De center, and namely radiation patch 11De center is the center of departing from the upper strata microstrip antenna; 21 is the radiation patch of lower floor's microstrip antenna 2, and 22 is the dielectric substrate of lower floor's microstrip antenna 2, and 23 is the feedback pin of lower floor's microstrip antenna 2, and upper layer microstrip antenna 1 is the same, and the radiation patch 21De center of lower floor's microstrip antenna 2 does not overlap with dielectric substrate 22De center yet; In the present invention, dielectric layer 3 is dielectric substrate; 6 for being arranged on the metallization via hole at lower floor's microstrip antenna 2 centers, and it makes the antenna integral body can good earth; 7 is screw hole, and the present embodiment respectively is provided with a screw hole in four centre positions, limit of antenna, and upper strata microstrip antenna 1, lower floor's microstrip antenna 2 and dielectric layer 3 after overlapping successively are fixed on reflecting plate 4 through screw hole 7 by screw; Shielding box 5 is arranged under the back side of reflecting plate 4, is used for isolated antennas and other circuit boards.Upper strata microstrip antenna 1 is by 13 direct feeds of feedback pin, and the feedback pin 13 of upper strata microstrip antenna 1 passes the metallization via hole 6 at lower floor's microstrip antenna center; Lower floor's microstrip antenna 2 is by 23 direct feeds of feedback pin; One group of diagonal angle of the radiation patch 11 of upper strata microstrip antenna 1 is symmetrical corner cut; The radiation patch 21 of lower floor's microstrip antenna 2 is symmetrical corner cut with the staggered one group of diagonal angle of corner cut of the radiation patch 11 of upper strata microstrip antenna 1, referring to Fig. 2 and shown in Figure 3.
In the present embodiment, dielectric layer 3 between lower floor's microstrip antenna 2 and reflecting plate 4 is comprised of a dielectric substrate, in other embodiments, according to the bandwidth requirement of dual-band antenna, can there is no dielectric layer 3, can be also that two or more the dielectric substrate that fits together forms dielectric layer 3, such as, in actual applications,, if dielectric substrate 22 thickness of lower floor's microstrip antenna 2 can meet the requirement of dual-band antenna to bandwidth, can there is no dielectric layer 3; If can not meet bandwidth requirement, need to increase dielectric layer 3, suppose to need to increase the dielectric layer 3 of 6 millimeters thickness, can select so the dielectric substrate of 6 millimeters as dielectric layer 3, also can select the dielectric substrate of the dielectric substrate of 2 millimeters and 4 millimeters to fit together and form dielectric layer 3.
As shown in Figure 2, be the front schematic view of the upper strata microstrip antenna of the described antenna of Fig. 1; In figure, 14 is the signal hole, feedback pin position of upper strata microstrip antenna 1; Upper strata microstrip antenna 1 comprises radiation patch 11, dielectric substrate 12, and upper strata microstrip antenna 1 is by metallic vias 6 ground connection at lower floor's microstrip antenna 2 centers; Upper strata microstrip antenna 1 adopts corner cut on radiation patch 11 to carry out perturbation, to realize circular polarization; The emulation axial ratio figure of upper strata microstrip antenna 1 and simulated gain figure are referring to Fig. 4 and Fig. 5.
As shown in Figure 3, be the front schematic view of lower floor's microstrip antenna of the described antenna of Fig. 1; In figure, 24 is the signal hole, feedback pin position of above-mentioned lower floor microstrip antenna 2; Lower floor's microstrip antenna 2 comprises radiation patch 21, dielectric substrate 22, and passes through metallization via hole 6 ground connection at its center; Lower floor's microstrip antenna 2 adopts corner cut on radiation patch 21 to carry out perturbation, to realize circular polarization; The emulation axial ratio figure of lower floor's microstrip antenna 2 and simulated gain figure are referring to Fig. 6 and Fig. 7.
As shown in Figure 4, be the emulation axial ratio figure of the upper strata microstrip antenna of the described antenna of Fig. 1, wherein transverse axis (X-axis) represents elevation angle angle, the longitudinal axis (Y-axis) expression axial ratio.
As shown in Figure 5, be the simulated gain figure of the upper strata microstrip antenna of the described antenna of Fig. 1, wherein transverse axis (X-axis) represents elevation angle angle, the longitudinal axis (Y-axis) expression antenna gain.
As shown in Figure 6, be the emulation axial ratio figure of lower floor's microstrip antenna of the described antenna of Fig. 1, wherein transverse axis (X-axis) represents elevation angle angle, the longitudinal axis (Y-axis) expression axial ratio.
As shown in Figure 7, be the simulated gain figure of lower floor's microstrip antenna of the described antenna of Fig. 1, wherein transverse axis (X-axis) represents elevation angle angle, the longitudinal axis (Y-axis) expression antenna gain.
In the present invention, lower floor's microstrip antenna 2 as radiant body the time relative upper strata microstrip antenna 1 also play the effect of upper strata microstrip antenna 1 with reference to ground of serving as, all under identical prerequisite, the working frequency range of upper strata microstrip antenna 1 is greater than the working frequency range of lower floor's microstrip antenna 2 at the dielectric substrate dielectric constant of upper and lower layer microstrip antenna.
In the present invention, no matter be that microstrip antenna or dielectric layer all adopt the low-loss dielectric substrate of high-k, make antenna possess good impedance bandwidth and axial ratio bandwidth on the working frequency points that requires, namely can be applicable in the hand-held receiving equipment of satellite navigation system of high-acruracy survey.
These are only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent transformation that utilizes content of the present invention to do, or with the present invention directly/indirectly be used in concrete equipment or other relevant technical fields, include in scope of patent protection of the present invention.
Claims (6)
1. dual-band antenna, it is characterized in that, described antenna comprises the upper strata microstrip antenna, lower floor's microstrip antenna and reflecting plate, be screwed on the front of described reflecting plate after described upper strata microstrip antenna and lower floor's microstrip antenna are overlapping, described upper strata microstrip antenna and described lower floor microstrip antenna are all presented the pin feed by list, the feedback pin of described upper strata microstrip antenna passes the metallization via hole at lower floor's microstrip antenna center, the radiation patch of wherein said upper strata microstrip antenna and the center of dielectric substrate do not overlap, the radiation patch of described lower floor microstrip antenna and the center of dielectric substrate do not overlap.
2. dual-band antenna according to claim 1, is characterized in that, one group of diagonal angle of the radiation patch of the radiation patch of described upper strata microstrip antenna and described lower floor microstrip antenna is symmetrical corner cut.
3. dual-band antenna according to claim 2, is characterized in that, the corner cut position of the radiation patch of the radiation patch of described upper strata microstrip antenna and described lower floor microstrip antenna is crisscross arranged.
4. dual-band antenna according to claim 1, is characterized in that, described antenna also comprises dielectric layer between described lower floor microstrip antenna and described reflecting plate.
5. dual-band antenna according to claim 4, is characterized in that, described antenna also comprises a shielding box, and described shielding box is arranged under described reflecting plate.
6. dual-band antenna according to claim 1, is characterized in that, the working frequency range of described upper strata microstrip antenna is greater than the working frequency range of described lower floor microstrip antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100591313A CN102117964B (en) | 2011-03-11 | 2011-03-11 | Double-frequency antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100591313A CN102117964B (en) | 2011-03-11 | 2011-03-11 | Double-frequency antenna |
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| CN102117964A CN102117964A (en) | 2011-07-06 |
| CN102117964B true CN102117964B (en) | 2013-11-20 |
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| CN2011100591313A Active CN102117964B (en) | 2011-03-11 | 2011-03-11 | Double-frequency antenna |
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| CN102324620B (en) * | 2011-07-15 | 2013-12-04 | 华南理工大学 | Double-frequency dual-polarized antenna capable of working at GPS (Global Position System) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) |
| US9252611B2 (en) | 2011-12-21 | 2016-02-02 | Amosense Co., Ltd. | Magnetic field shielding sheet for a wireless charger, method for manufacturing same, and receiving apparatus for a wireless charger using the sheet |
| CN102738566B (en) * | 2012-07-04 | 2015-11-25 | 航天恒星科技有限公司 | A kind of miniaturized three frequency satellite communication antenas |
| CN103337691A (en) * | 2013-05-23 | 2013-10-02 | 深圳市华信天线技术有限公司 | Combined antenna and handheld antenna device |
| CN103401069B (en) * | 2013-08-20 | 2015-09-23 | 厦门大学 | Rod seam compound guides dual-band and dual-feed low elevation angle high-gain microstrip antenna into |
| CN103457029A (en) * | 2013-09-04 | 2013-12-18 | 北京合众思壮科技股份有限公司 | Dual-band antenna |
| CN104716417A (en) * | 2013-12-12 | 2015-06-17 | 深圳光启创新技术有限公司 | Circularly polarized antenna, circularly polarized antenna system and communication device |
| CN103746192B (en) * | 2014-01-17 | 2016-05-11 | 福州福大北斗通信科技有限公司 | A Big Dipper generation/Big Dipper two generations B1/GPS multisystem compatible navigation antenna |
| CN104183919B (en) * | 2014-07-11 | 2017-07-28 | 深圳市华信天线技术有限公司 | Combined antenna |
| CN105375105B (en) * | 2014-08-28 | 2018-06-26 | 中国船舶重工集团公司第七二二研究所 | A kind of dual-band antenna |
| EP3364500A4 (en) * | 2015-11-23 | 2018-09-05 | Huawei Technologies Co., Ltd. | Antenna unit and antenna array |
| CN106532247A (en) * | 2016-12-01 | 2017-03-22 | 北京航天长征飞行器研究所 | Dual-band circularly-polarized shaped antenna |
| KR101989820B1 (en) * | 2017-03-14 | 2019-06-18 | 주식회사 아모텍 | Multilayer patch antenna |
| CN109390696B (en) * | 2017-08-10 | 2022-02-08 | 佳邦科技股份有限公司 | Portable electronic device and stacked antenna module thereof |
| CN109841941B (en) | 2017-11-29 | 2021-06-04 | 华为技术有限公司 | Dual-band antenna and wireless communication device |
| WO2020014874A1 (en) | 2018-07-17 | 2020-01-23 | 华为技术有限公司 | Integrated circuit and terminal device |
| CN117013249B (en) * | 2023-09-06 | 2024-04-05 | 南通大学 | Low elevation angle double-frequency dual-beam patch antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847785A (en) * | 2009-03-27 | 2010-09-29 | 立积电子股份有限公司 | Dual-frequency planar microstrip antenna |
| CN201611688U (en) * | 2010-04-08 | 2010-10-20 | 湖南华诺星空电子技术有限公司 | Double-frequency stacked microstrip antenna for adaptive anti-interference antenna array |
| CN101916901A (en) * | 2010-08-05 | 2010-12-15 | 广州市中海达测绘仪器有限公司 | Double-frequency microstrip antenna |
| CN101931122A (en) * | 2010-08-27 | 2010-12-29 | 电子科技大学 | C/X dual-band microstrip antenna |
-
2011
- 2011-03-11 CN CN2011100591313A patent/CN102117964B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847785A (en) * | 2009-03-27 | 2010-09-29 | 立积电子股份有限公司 | Dual-frequency planar microstrip antenna |
| CN201611688U (en) * | 2010-04-08 | 2010-10-20 | 湖南华诺星空电子技术有限公司 | Double-frequency stacked microstrip antenna for adaptive anti-interference antenna array |
| CN101916901A (en) * | 2010-08-05 | 2010-12-15 | 广州市中海达测绘仪器有限公司 | Double-frequency microstrip antenna |
| CN101931122A (en) * | 2010-08-27 | 2010-12-29 | 电子科技大学 | C/X dual-band microstrip antenna |
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Owner name: SHENZHEN SATLEAD TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN HUAXIN ANTENNA TECHNOLOGY CO., LTD. Effective date: 20130916 |
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Effective date of registration: 20130916 Address after: 518057 Guangdong city of Shenzhen province Nanshan District Xili liuxiandong Zhongshan Road No. 1001 TCL Science Park Research Building D3 building 6 unit 603 layer B Applicant after: Harxon Corporation Address before: 518057, Guangdong, Nanshan District province science and technology, South twelve road hi tech Industrial Park, South District, Shenzhen electric lighting R & D center on the third floor, A1 Applicant before: Shenzhen Huaxin Antenna Technology Co., Ltd. |
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