CN103280630A - Multi-frequency wide-beam circular polarization antenna - Google Patents
Multi-frequency wide-beam circular polarization antenna Download PDFInfo
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- CN103280630A CN103280630A CN2013101572376A CN201310157237A CN103280630A CN 103280630 A CN103280630 A CN 103280630A CN 2013101572376 A CN2013101572376 A CN 2013101572376A CN 201310157237 A CN201310157237 A CN 201310157237A CN 103280630 A CN103280630 A CN 103280630A
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Abstract
The invention discloses a multi-frequency wide-beam circular polarization antenna, which comprises a high-frequency band circular polarization antenna, a low-frequency band circular polarization antenna, an intermediate medium plate and a feed network which are coaxially overlaid sequentially from top to bottom , wherein the high-frequency band circular polarization antenna adopts a structure that a plurality of reversed L-shaped array antennae are uniformly arranged on the intermediate medium plate along a circumference; the low-frequency band circular polarization antenna adopts a structure that a plurality of PIFAs (Planar Inverted F Antennae) are uniformly arranged on the intermediate medium plate along the circumference; and the feed network is composed of two medium plates which are soldered together, and Wilkinson power dividers used for giving feed to the reversed L-shaped array antennae and the PIFAs are respectively printed on the medium plates. By utilizing the circular polarization principles of the PIFAs and the array antennae, the multi-frequency wide-beam circular polarization antenna which can work in the frequency of 1.1-1.7 GHz (low-frequency band) and 2.2-2.8 GHz (high-frequency band) is designed, the directional pattern of the antenna has a wide-beam characteristic, the out-of-roundness feature of the pattern is good through a coaxial overlaying design, and the upper half space can be covered well.
Description
Technical field
The present invention relates to antenna technical field, particularly relate to multimode multifrequency circular polarization reception antenna, can be used for satellite navigation location such as two generations of GPS, GLONASS, the Big Dipper.
Background technology
Satellite navigation system can be global land, sea, air, day all kinds of the army and the people's carriers, round-the-clock, high accuracy three-dimensional position, speed and chronometer time information was provided in 24 hours continuously.Also bringing into play increasing effect at military, civil area.High accuracy, round-the-clock, round-the-clock navigation, location and time service information that the global navigation satellite navigation system sends, it is a kind of the army and the people user's Sharing Information resource for all sea, land and sky, sky, who has this technology and ability, just in military, diplomacy be active economically.
The satellite navigation system that has the worldwide navigation stationkeeping ability at present has only GPS of USA and Muscovite GLONASS.China is in Beidou navigation satellite system in 2003 commencement of commercial operation, this is a kind of Double-Star Positioning System system at some areas, be mainly used in the military and civilian needs of China and surrounding area, system's operational excellence has developed a large amount of the army and the people users for many years.At present, the Big Dipper two generations satellite navigation system that is coming into operation is similar GPS and GLONASS system, has kept the satellite communication function of a generation when possessing navigation locating function, and has increased the function of WAAS.
Anneta module is requisite module in the radio-frequency front-end of satellite navigation system ground equipment, and is bringing into play important effect, antenna performance (as: characteristics such as polarization gain, axial ratio) the direct navigation performance that influences equipment of quality.
The antenna that is used for the satellite navigation location has microstrip antenna, right-angled intersection element antenna, four-arm spiral antenna etc.; and these antenna mostly is single mode or arrowband work; namely can only receive a satellite system signal in GPS, GLONASS or the Big Dipper two generations system; when realizing multiple-frequency operation, its directional diagram is not very desirable.Thereby application is subjected to certain restriction.Chinese patent CN 201120317215.8 discloses a kind of military Big Dipper two generations satellite fix multimode multifrequency circular polarization reception antenna, this antenna adopts the variant of circular cone isogonism both arms helical antenna, on the circular cone support, feeder line rises to the top along a hurricane band wire spoke beam wherein and carries out balanced feeding with two equiangular spiral metal tape wire spoke beams.Though this antenna function admirable, the width of its metal tape wire spoke beam is gradual change, makes complicated process of preparationization, has limited the use of antenna.Chinese patent CN201210160278.6 discloses a kind of multimode multifrequency circular polarized antenna, and this antenna adopts the antenna form of two arm spirals of distortion, and top is that truncated cone-shaped, bottom are columniform integrative-structure, and balanced feeding is carried out by transition line in the center.Realized the well behaved antenna of wide band circular polarization.But this antenna height is than higher, and pattern shapes is bigger with frequency change, does not comprise the Big Dipper two generations S frequency range.
Gps system is very extensive in the application of the army and the people fields such as navigation, measurement, time service at present, and therefore the navigation antenna demand of the working frequency range of compatible with GPS, GLONASS, the Big Dipper two generations navigation system is urgent day by day simultaneously.
Summary of the invention
The object of the invention provide a kind of can compatible with GPS, two generations of GLONASS, the Big Dipper etc. the satellite system operating frequency broad beam antenna, finish the satellite-signal that just can receive above each system by an antenna, thereby realize that high accuracy navigates, locatees.
For achieving the above object, the technical solution adopted in the present invention is: a kind of multifrequency broad beam circular polarized antenna, it comprises from top to bottom coaxial superimposed successively high band circular polarized antenna, the low-frequency range circular polarized antenna, the intermediate medium plate, feeding network, described high band circular polarized antenna is evenly arranged on the described intermediate medium plate along circumference by a plurality of inverted L shape a period of time antenna, described low-frequency range circular polarized antenna unit is evenly distributed on the described intermediate medium plate by circumferencial direction by a plurality of PIFA antennas, described feeding network is made of soldering two blocks of dielectric-slabs together, be printed with respectively on the described dielectric-slab for the high band Wilkinson centimetre device of giving described inverted L shape a period of time antenna feed with for the low-frequency range Wilkinson centimetre device of giving described PIFA antenna feed, described feeding network and described intermediate medium plate weld together as coaxial line by the short circuit pin of PIFA antenna, and by described coaxial line carry high frequency segment signal, the radiant body of described PIFA antenna is as ground, and realize described inverted L shape a period of time antenna high band feed by the microstrip line that sticks on the intermediate medium plate, the radiant body of described PIFA antenna is realized described PIFA antenna low-frequency range feed by feed probes.
Compared with prior art, the invention has the advantages that: PIFA(Planar Inverted-F Antenna) antenna is the built-in antenna of mobile phone that is most widely used at present, and size is little.Have in light weight, section is low, low cost, bandwidth, efficient height, gain are high, to series of advantages such as the human body radiation injury are little.PIFA antenna main feature is that radiation patch is littler than conventional microstrip antenna size, and an end ground connection, and obtains good impedance operator at the appropriate location of paster feed.The present invention utilizes Technology design such as PIFA antenna, array antenna circular polarization design principle to go out aly can be operated in 1.1GHz ~ 1.7GHz(low-frequency range) and 2.2GHz ~ 2.8GHz(high band) the multifrequency broad beam circular polarized antenna of frequency, and its antenna pattern has the broad beam characteristic, and good by the coaxial design direction figure deviation in roundness characteristic that stacks, can well cover upper half-space.
Description of drawings
Fig. 1 is multifrequency broad beam antenna overall structure schematic diagram of the present invention;
Fig. 2 a, 2b are feeding network structural representations among the present invention;
Fig. 3 is the structural representation that medium and low frequency section radiant body of the present invention and high band feed integrate;
Fig. 4 a, 4b are respectively medium and low frequency section 1.4GHz of the present invention and high band 2.4GHz polarization gain pattern.
Embodiment
Describe in further detail below in conjunction with the present invention of accompanying drawing embodiment.
Embodiment one:
As shown in Figure 1, present embodiment multifrequency broad beam circular polarized antenna is respectively the coaxial formations that stack such as high band circular polarized antenna, low-frequency range circular polarized antenna, feeding network successively from top to bottom.
Low-frequency range adopts four PIFA antenna forms, and it is evenly distributed on a circumference, see that by one minute four Wilkinson centimetre device 101(Fig. 2 a) gives four PIFA antenna feeds with (90 ° of 0 ° of 1 ∠, 1 ∠, 180 ° of 1 ∠, 270 ° of 1 ∠), thereby realize the circular polarized antenna of low-frequency range.
High band adopts four inverted L shape element antenna 3 forms, and it is evenly distributed on a circumference, Wilkinson centimetre device 106(by one minute four sees Fig. 2 b) give four inverted L shape element antenna feeds with (90 ° of 0 ° of 1 ∠, 1 ∠, 180 ° of 1 ∠, 270 ° of 1 ∠), thus realize the circular polarized antenna of high band.
Present embodiment is designed to coaxial line 4 with the short circuit pin of the PIFA antenna of low-frequency range, and the crust of coaxial line 4 plays the effect of short circuit pin, simultaneously can be by the signal of these coaxial line 4 carry high frequency sections.
The high band feed as ground, and designs inverted L shape element antenna 3 feeds that a microstrip line 202 is given high band with the radiant body 201 of PIFA antenna.
The radiant body 201 of the PIFA antenna of low-frequency range is by feed probes 5 feeds.
Two one fen Wilkinson centimetre devices 101,106 of four are printed on respectively on two dielectric-slabs, are welded together to form feeding network by scolding tin between two dielectric-slabs.
Above-mentioned the present embodiment design principle is illustrated, will specifically introduces down the present embodiment antenna structure below and realize:
On the whole, multifrequency broad beam circular polarized antenna roughly constitutes (see figure 1) by feeding network 1, intermediate medium plate 2, inverted L shape oscillator 3, coaxial line 4, feed probes 5 etc.Feeding network 1 is welded together by the ground of two dielectric-slabs and constitutes.On four inverted L shape oscillator 3 even distribution circumference, and weld together with intermediate medium plate 2.Feeding network 1 and intermediate medium plate 2 weld together by four coaxial lines 4, and the ground of the crust of coaxial line 4 and feeding network 1 and the PIFA antenna radiator in the intermediate medium plate are welded on one.The heart yearn of coaxial line 4 respectively with feeding network 1 in feed circuit and intermediate medium plate 2 weld together.Feed probes 5 respectively with intermediate medium plate 2 on the PIFA antenna radiator and the centimetre device feed circuit in the feeding network 1 weld together.
Particularly, shown in Fig. 2 a is the high band dielectric-slab of the feeding network 1 of multifrequency broad beam circular polarized antenna, be made of high band centimetre device feed circuit 101, welding hole 102, high band through hole 103, low-frequency range power feed hole 104, low-frequency range radio frequency mouth 105, feed circuit 101 welds together by low-frequency range power feed hole 104 and feed probes 5.Weld together by two dielectric-slabs of welding hole 102 with feeding network 1.The ground that coaxial line 4 passes high band through hole 103 and feeding network welds together.Low-frequency range radio frequency mouth 105 will connect a radio frequency connector.
Shown in Fig. 2 b is the low-frequency range dielectric-slab of the feeding network 1 of multifrequency broad beam circular polarized antenna, be made of low-frequency range centimetre device feed circuit 106, low-frequency range through hole 107, high band power feed hole 108, feed circuit 106 welds together by the heart yearn of high band power feed hole 108 with coaxial line 4.Feed probes 5 is passed low-frequency range through hole 107.
Shown in Figure 3 is the intermediate medium plate 2 of multifrequency broad beam circular polarized antenna, its radiant body 201 by the PIFA antenna, gives microstrip line 202, coaxial connecting hole 203, the probe connecting hole 204 of inverted L shape oscillator feed, and center patch 205 constitutes.The radiant body 201 of PIFA antenna welds together by coaxial connecting hole 203 and coaxial line 4 crusts, plays the short circuit pin of PIFA antenna, welds together by probe connecting hole 204 and feed probes 5 simultaneously.Microstrip line 202 and four inverted L shape oscillators weld together, and utilize the radiant body 201 of PIFA antenna to give inverted L shape oscillator feed as ground.The heart yearn of coaxial line 4 also welds together with microstrip line 202.Simultaneously, in order to improve the gain of high band, also be pasted with center patch 205 at the center of intermediate medium plate 2, its radiant body with the PIFA antenna (201) is as the ground of inverted L shape oscillator.
Fig. 4 has provided the gain pattern that adopts present embodiment emulation, shows among the figure that the directional diagram of two frequency ranges has the broad beam characteristic.
Above-mentioned specific implementation to present embodiment has been described in detail, and with respect to prior art, it has following characteristics:
1) working frequency range of the present invention has comprised all working frequency range of GPS, GLONASS.The S frequency range and other frequency ranges (as: wifi frequency range etc.) that also comprise the Big Dipper simultaneously;
2) antenna pattern of the present invention has the broad beam characteristic, and good by the coaxial design direction figure deviation in roundness characteristic that stacks, and can well cover upper half-space;
3) structure of the present invention is light and handy, in light weight, cost is low, and future in engineering applications is wide.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. multifrequency broad beam circular polarized antenna, it is characterized in that: it comprises from top to bottom coaxial superimposed successively high band circular polarized antenna, the low-frequency range circular polarized antenna, the intermediate medium plate, feeding network, described high band circular polarized antenna is evenly arranged on the described intermediate medium plate along circumference by a plurality of inverted L shape a period of time antenna, described low-frequency range circular polarized antenna unit is evenly distributed on the described intermediate medium plate by circumferencial direction by a plurality of PIFA antennas, described feeding network is made of soldering two blocks of dielectric-slabs together, be printed with respectively on the described dielectric-slab for the high band Wilkinson centimetre device of giving described inverted L shape a period of time antenna feed with for the low-frequency range Wilkinson centimetre device of giving described PIFA antenna feed, described feeding network and described intermediate medium plate weld together as coaxial line by the short circuit pin of PIFA antenna, and by described coaxial line carry high frequency segment signal, the radiant body of described PIFA antenna is as ground, and realize described inverted L shape a period of time antenna high band feed by the microstrip line that sticks on the intermediate medium plate, the radiant body of described PIFA antenna is realized described PIFA antenna low-frequency range feed by feed probes.
2. multifrequency broad beam circular polarized antenna according to claim 1, it is characterized in that: described inverted L shape a period of time antenna and PIFA antenna comprise four respectively, described wilkinson centimetre device is one fen four wilkinson centimetre device.
3. multifrequency broad beam circular polarized antenna according to claim 2 is characterized in that: two described wilkinson centimetre devices provide feed for corresponding inverted L shape a period of time antenna and PIFA antenna with 270 ° of 180 ° of 90 ° of 0 ° of 1 ∠, 1 ∠, 1 ∠, 1 ∠ respectively.
4. according to arbitrary described multifrequency broad beam circular polarized antenna in the claim 1 to 3, it is characterized in that: one of them dielectric-slab of described feeding network is made of low-frequency range wilkinson centimetre device feed circuit, welding hole, high band through hole, low-frequency range power feed hole, low-frequency range radio frequency mouth, described low-frequency range wilkinson centimetre device feed circuit welds together by low-frequency range power feed hole and feed probes, the ground that described coaxial line passes described high band through hole and feeding network welds together, and described low-frequency range radio frequency mouth is used for connecting radio frequency connector; Another dielectric-slab of described feeding network is made of high band wilkinson centimetre device feed circuit, low-frequency range through hole, high band power feed hole, described high band wilkinson centimetre device feed circuit welds together by the heart yearn of high band power feed hole and coaxial line, and described feed probes is passed described low-frequency range through hole.
5. multifrequency broad beam circular polarized antenna according to claim 4, it is characterized in that: described intermediate medium plate mainly is made of radiant body, microstrip line, coaxial connecting hole, the probe connecting hole of described PIFA antenna, the radiant body of described PIFA antenna is by coaxial connecting hole and the outer skin-deep welding of described coaxial line, described feed probes is welded in the described probe connecting hole, and described microstrip line utilizes the radiant body of PIFA antenna to give inverted L shape a period of time antenna feed as ground.
6. multifrequency broad beam circular polarized antenna according to claim 5 is characterized in that: the center of described intermediary dielectric-slab also is pasted with ground as inverted L shape a period of time antenna to be used for improving the center patch of high band gain.
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| CN2013101572376A CN103280630A (en) | 2013-05-02 | 2013-05-02 | Multi-frequency wide-beam circular polarization antenna |
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| CN2013101572376A CN103280630A (en) | 2013-05-02 | 2013-05-02 | Multi-frequency wide-beam circular polarization antenna |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606756A (en) * | 2013-10-25 | 2014-02-26 | 深圳市摩天射频技术有限公司 | Small circularly-polarized antenna |
| WO2016168951A1 (en) * | 2015-04-18 | 2016-10-27 | 江苏亨鑫科技有限公司 | Dual-frequency dual-polarized base station antenna for parallel dual feeding |
| CN108172984A (en) * | 2017-12-01 | 2018-06-15 | 北京北方联星科技有限公司 | A kind of circular polarized antenna being made of multiple PIFA antennas |
| CN108493593A (en) * | 2018-05-21 | 2018-09-04 | 南京信息工程大学 | A kind of polarization reconfigurable antenna array based on feeding network |
| CN108767438A (en) * | 2018-05-07 | 2018-11-06 | 清华大学深圳研究生院 | A kind of double layer planar inverse-F antenna of circular polarisation |
| CN109066070A (en) * | 2018-08-07 | 2018-12-21 | 福州福大信捷天线技术有限公司 | RFID reader-writer antenna and use method thereof |
| CN109546332A (en) * | 2018-11-27 | 2019-03-29 | 西安交通大学 | A kind of antenna of low-frequency range multipolarization mode |
| CN109638422A (en) * | 2018-11-15 | 2019-04-16 | 中国电子科技集团公司第三十八研究所 | A kind of broadband circle polarized Shared aperture communication and navigation array antenna |
| CN110301069A (en) * | 2017-05-29 | 2019-10-01 | 华为技术有限公司 | A kind of configurable antenna array with multipolarization mode |
| CN111525280A (en) * | 2020-04-10 | 2020-08-11 | 上海交通大学 | Circular polarization scanning array antenna based on Rotman lens |
| CN111682303A (en) * | 2020-05-09 | 2020-09-18 | 四川九洲电器集团有限责任公司 | Common-aperture full-airspace coverage antenna |
| WO2021223118A1 (en) * | 2020-05-06 | 2021-11-11 | 华为技术有限公司 | Antenna, antenna array, and communication apparatus |
| CN117242645A (en) * | 2021-04-23 | 2023-12-15 | 拓普康定位系统公司 | Compact combined cellular/GNSS antenna with low mutual coupling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606756A (en) * | 2013-10-25 | 2014-02-26 | 深圳市摩天射频技术有限公司 | Small circularly-polarized antenna |
| WO2016168951A1 (en) * | 2015-04-18 | 2016-10-27 | 江苏亨鑫科技有限公司 | Dual-frequency dual-polarized base station antenna for parallel dual feeding |
| DE112015001888B4 (en) | 2015-04-18 | 2023-09-28 | Jiangsu Hengxin Technology Limited Corporation | Dual-polarized dual-frequency base station antenna with parallel two-lane feed |
| US11038272B2 (en) | 2017-05-29 | 2021-06-15 | Huawei Technologies Co., Ltd. | Configurable antenna array with diverse polarizations |
| CN110301069A (en) * | 2017-05-29 | 2019-10-01 | 华为技术有限公司 | A kind of configurable antenna array with multipolarization mode |
| CN108172984A (en) * | 2017-12-01 | 2018-06-15 | 北京北方联星科技有限公司 | A kind of circular polarized antenna being made of multiple PIFA antennas |
| CN108767438A (en) * | 2018-05-07 | 2018-11-06 | 清华大学深圳研究生院 | A kind of double layer planar inverse-F antenna of circular polarisation |
| CN108493593A (en) * | 2018-05-21 | 2018-09-04 | 南京信息工程大学 | A kind of polarization reconfigurable antenna array based on feeding network |
| CN108493593B (en) * | 2018-05-21 | 2023-10-13 | 南京信息工程大学 | Polarization reconfigurable antenna array based on feed network |
| CN109066070A (en) * | 2018-08-07 | 2018-12-21 | 福州福大信捷天线技术有限公司 | RFID reader-writer antenna and use method thereof |
| CN109066070B (en) * | 2018-08-07 | 2024-02-06 | 福州福大信捷天线技术有限公司 | RFID reader-writer antenna and use method thereof |
| CN109638422A (en) * | 2018-11-15 | 2019-04-16 | 中国电子科技集团公司第三十八研究所 | A kind of broadband circle polarized Shared aperture communication and navigation array antenna |
| CN109546332A (en) * | 2018-11-27 | 2019-03-29 | 西安交通大学 | A kind of antenna of low-frequency range multipolarization mode |
| CN109546332B (en) * | 2018-11-27 | 2020-03-31 | 西安交通大学 | Low-frequency band multi-polarization mode antenna |
| CN111525280A (en) * | 2020-04-10 | 2020-08-11 | 上海交通大学 | Circular polarization scanning array antenna based on Rotman lens |
| CN111525280B (en) * | 2020-04-10 | 2021-08-17 | 上海交通大学 | Circular polarization scanning array antenna based on Rotman lens |
| WO2021223118A1 (en) * | 2020-05-06 | 2021-11-11 | 华为技术有限公司 | Antenna, antenna array, and communication apparatus |
| CN111682303A (en) * | 2020-05-09 | 2020-09-18 | 四川九洲电器集团有限责任公司 | Common-aperture full-airspace coverage antenna |
| CN117242645A (en) * | 2021-04-23 | 2023-12-15 | 拓普康定位系统公司 | Compact combined cellular/GNSS antenna with low mutual coupling |
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