CN102117964A - Double-frequency antenna - Google Patents
Double-frequency antenna Download PDFInfo
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- CN102117964A CN102117964A CN2011100591313A CN201110059131A CN102117964A CN 102117964 A CN102117964 A CN 102117964A CN 2011100591313 A CN2011100591313 A CN 2011100591313A CN 201110059131 A CN201110059131 A CN 201110059131A CN 102117964 A CN102117964 A CN 102117964A
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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 the satellite navigation and location system.
Background technology
Along with the high speed development of satellite navigation technology 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, mainly show:
1, good circular polarization performance
In satellite communication, because circularly polarised wave rain, snow decay are little, it is strong to penetrate the ionosphere ability, is not subjected to the farad ground effects of terrestrial pole magnetic field outbreak, and 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 to influence global positioning system (Global Positioning System, GPS) the main factor of absolute fix utilize to receive two-frequency signal and carry out difference processing, can effectively slacken ionospheric influence, promote positioning accuracy.
3, miniaturization, simple and reliable for structure
Because handheld device all has miniaturization, lightening trend, the space that is used to hold antenna is also more and more littler, thus antenna need can be under the prerequisite of guaranteed performance reliability, strict CONTROL VOLUME.
4, low elevation gain
In satellite communication, require antenna can when the elevation angle that is not less than 5 °, can be good at receiving satellite-signal, this just requires the gain of antenna when hanging down the 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 satisfy hand-held receiving equipment in the satellite navigation and location system as far as possible to the requirement of antenna.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, the overlapping back of described upper strata microstrip antenna and lower floor's microstrip antenna is fixed on the described reflecting plate by screw.
Preferably, above-mentioned upper strata microstrip antenna and described lower floor microstrip antenna are all by single feedback pin feed.
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 the 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 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 uses corresponding two different frequencies of upper and lower layer microstrip antenna of separate single feedback pin direct feed to realize two-frequency operation, 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 microstrip antenna center, makes antenna possess good earth; Emulation and measured result show that all 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 will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Further specify 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 explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, be the tangent plane schematic diagram of the preferred embodiment of antenna of the present invention; Present embodiment comprises upper strata microstrip antenna 1, lower floor's microstrip antenna 2, dielectric layer 3, reflecting plate 4 and shielding box 5; Among the 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, the center of radiation patch 11 does not overlap with the center of dielectric substrate 12, and promptly the center of radiation patch 11 is the centers 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 center of the radiation patch 21 of lower floor's microstrip antenna 2 does not overlap with the center of dielectric substrate 22 yet; Among the present invention, dielectric layer 3 is a 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 present embodiment respectively is provided with a screw hole in the centre position, four limits of antenna, and upper strata microstrip antenna 1, lower floor's microstrip antenna 2 and dielectric layer 3 after overlapping successively are fixed on the 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 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 the reflecting plate 4 is made up of a dielectric substrate, in other embodiments, according to the bandwidth requirement of dual-band antenna, can there be dielectric layer 3, also can be 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 satisfy the requirement of dual-band antenna to bandwidth, then can there be dielectric layer 3; If can not satisfy bandwidth requirement, then need to increase dielectric layer 3, suppose to need to increase the dielectric layer 3 of 6 millimeters thickness, the dielectric substrate that can select one 6 millimeters so is as dielectric layer 3, also can select the dielectric substrate of one 2 millimeters dielectric substrate 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; Among the 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 employing corner cut on radiation patch 11 is carried 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; Among the 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 employings corner cut on radiation patch 21 is carried 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) is represented 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) is represented 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) is represented 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) is represented elevation angle angle, the longitudinal axis (Y-axis) expression antenna gain.
Among 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 of serving as with reference to ground, under all identical prerequisite of the dielectric substrate dielectric constant of upper and lower layer microstrip antenna, the working frequency range of upper strata microstrip antenna 1 is greater than the working frequency range of lower floor's microstrip antenna 2.
Among the present invention, no matter be that microstrip antenna or dielectric layer all adopt the low-loss dielectric substrate of high-k, make antenna on the working frequency points that requires, possess good impedance bandwidth and axial ratio bandwidth, promptly can be applicable in the hand-held receiving equipment of satellite navigation system of high-acruracy survey.
Below only be the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent transformation that utilizes content of the present invention to do, or with the present invention directly/be used in concrete equipment or other relevant technical fields indirectly, include in scope of patent protection of the present invention.
Claims (10)
1. a dual-band antenna is characterized in that, described antenna comprises upper strata microstrip antenna, lower floor's microstrip antenna and reflecting plate, and the overlapping back of described upper strata microstrip antenna and lower floor's microstrip antenna is fixed on the described reflecting plate by screw.
2. dual-band antenna according to claim 1 is characterized in that, described upper strata microstrip antenna and described lower floor microstrip antenna are all by single feedback pin feed.
3. dual-band antenna according to claim 1 and 2 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.
4. dual-band antenna according to claim 3 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.
5. dual-band antenna according to claim 1 and 2 is characterized in that, described antenna also comprises dielectric layer between described lower floor microstrip antenna and described reflecting plate.
6. dual-band antenna according to claim 5 is characterized in that described antenna also comprises a shielding box, and described shielding box is arranged under the described reflecting plate.
7. dual-band antenna according to claim 1 and 2 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.
8. dual-band antenna according to claim 1 and 2 is characterized in that, described lower floor microstrip antenna center is provided with the metallization via hole, and the feedback pin of described upper strata microstrip antenna passes described metallization via hole.
9. dual-band antenna according to claim 1 and 2 is characterized in that, the radiation patch of described upper strata microstrip antenna and the center of dielectric substrate do not overlap.
10. dual-band antenna according to claim 1 and 2 is characterized in that, the radiation patch of described lower floor microstrip antenna and the center of dielectric substrate do not overlap.
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| CN2011100591313A CN102117964B (en) | 2011-03-11 | 2011-03-11 | Double-frequency antenna |
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| CN2011100591313A CN102117964B (en) | 2011-03-11 | 2011-03-11 | Double-frequency antenna |
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| CN102117964A true CN102117964A (en) | 2011-07-06 |
| CN102117964B CN102117964B (en) | 2013-11-20 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324620A (en) * | 2011-07-15 | 2012-01-18 | 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) |
| CN102738566A (en) * | 2012-07-04 | 2012-10-17 | 航天恒星科技有限公司 | Miniaturized three-band satellite communication antenna |
| 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 |
| CN103401069A (en) * | 2013-08-20 | 2013-11-20 | 厦门大学 | Composite slit leading dual-band and double-fed microstrip antenna with low elevation and high gain |
| 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 |
| CN103746192A (en) * | 2014-01-17 | 2014-04-23 | 福州福大北斗通信科技有限公司 | First-generation Compass/second-generation Compass B1/GPS (Global Positioning System) multisystem-compatible navigation antenna |
| CN104183919A (en) * | 2014-07-11 | 2014-12-03 | 深圳市华信天线技术有限公司 | Combination 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 |
| CN105375105A (en) * | 2014-08-28 | 2016-03-02 | 中国船舶重工集团公司第七二二研究所 | Dual-band antenna |
| 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 |
| WO2017088090A1 (en) * | 2015-11-23 | 2017-06-01 | 华为技术有限公司 | Antenna unit and antenna array |
| CN109390696A (en) * | 2017-08-10 | 2019-02-26 | 佳邦科技股份有限公司 | Portable electronic devices and its stack Anneta module |
| CN109841941A (en) * | 2017-11-29 | 2019-06-04 | 华为技术有限公司 | Dual-band antenna and wireless telecom equipment |
| CN110462929A (en) * | 2017-03-14 | 2019-11-15 | 阿莫技术有限公司 | Multiple-layered patches antenna |
| WO2020014874A1 (en) * | 2018-07-17 | 2020-01-23 | 华为技术有限公司 | Integrated circuit and terminal device |
| US11006553B2 (en) | 2011-12-21 | 2021-05-11 | Virginia Wireless And Streaming Technologies Llc | Magnetic field shielding sheet for a wireless charger, method for manufacturing same, and receiving apparatus for a wireless charger using the sheet |
| CN117013249A (en) * | 2023-09-06 | 2023-11-07 | 南通大学 | Low elevation angle double-frequency dual-beam patch antenna |
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| CN101931122A (en) * | 2010-08-27 | 2010-12-29 | 电子科技大学 | C/X dual-band microstrip antenna |
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| 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 |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324620A (en) * | 2011-07-15 | 2012-01-18 | 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) |
| 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) |
| US11006553B2 (en) | 2011-12-21 | 2021-05-11 | Virginia Wireless And Streaming Technologies Llc | 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 |
| CN102738566A (en) * | 2012-07-04 | 2012-10-17 | 航天恒星科技有限公司 | Miniaturized three-band satellite communication antenna |
| 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 |
| CN103401069A (en) * | 2013-08-20 | 2013-11-20 | 厦门大学 | Composite slit leading dual-band and double-fed microstrip antenna with low elevation and high gain |
| 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 |
| CN103746192A (en) * | 2014-01-17 | 2014-04-23 | 福州福大北斗通信科技有限公司 | First-generation Compass/second-generation Compass B1/GPS (Global Positioning System) multisystem-compatible navigation antenna |
| 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 |
| CN104183919A (en) * | 2014-07-11 | 2014-12-03 | 深圳市华信天线技术有限公司 | Combination 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 |
| CN105375105A (en) * | 2014-08-28 | 2016-03-02 | 中国船舶重工集团公司第七二二研究所 | Dual-band antenna |
| WO2017088090A1 (en) * | 2015-11-23 | 2017-06-01 | 华为技术有限公司 | Antenna unit and antenna array |
| CN108352622A (en) * | 2015-11-23 | 2018-07-31 | 华为技术有限公司 | Antenna element and aerial array |
| CN108352622B (en) * | 2015-11-23 | 2020-05-22 | 上海深迅通信技术有限公司 | 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 |
| CN110462929A (en) * | 2017-03-14 | 2019-11-15 | 阿莫技术有限公司 | Multiple-layered patches antenna |
| CN109390696A (en) * | 2017-08-10 | 2019-02-26 | 佳邦科技股份有限公司 | Portable electronic devices and its stack Anneta module |
| 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 |
| CN109841941A (en) * | 2017-11-29 | 2019-06-04 | 华为技术有限公司 | Dual-band antenna and wireless telecom equipment |
| US11309620B2 (en) | 2017-11-29 | 2022-04-19 | Huawei Technologies Co., Ltd. | Dual-band antenna and wireless communications device |
| WO2020014874A1 (en) * | 2018-07-17 | 2020-01-23 | 华为技术有限公司 | Integrated circuit and terminal device |
| US11489247B2 (en) | 2018-07-17 | 2022-11-01 | Huawei Technologies Co., Ltd. | Integrated circuit and terminal device |
| CN117013249A (en) * | 2023-09-06 | 2023-11-07 | 南通大学 | Low elevation angle double-frequency dual-beam patch antenna |
| CN117013249B (en) * | 2023-09-06 | 2024-04-05 | 南通大学 | Low elevation angle double-frequency dual-beam patch antenna |
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