CN105552546A - Small-sized big dipper antenna - Google Patents
Small-sized big dipper antenna Download PDFInfo
- Publication number
- CN105552546A CN105552546A CN201610062284.6A CN201610062284A CN105552546A CN 105552546 A CN105552546 A CN 105552546A CN 201610062284 A CN201610062284 A CN 201610062284A CN 105552546 A CN105552546 A CN 105552546A
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- China
- Prior art keywords
- antenna
- flexible pcb
- beidou
- radiation arm
- radiation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a small-sized big dipper antenna. The small-sized big dipper antenna comprises a radiation dielectric board, flexible circuit boards and antenna bodies, wherein the flexible circuit boards are connected end to end to form a cylindrical shape, and positioned on the radiation dielectric board; each antenna body comprises an antenna radiation arm, a feed point and a feed ground point; the feed point is arranged on a contact wire of the corresponding flexible circuit board and the radiation dielectric board; the feed point is connected with the antenna radiation arm; the antenna radiation arm rotates around the corresponding flexible circuit board; the feed ground point is also arranged on the contact wire of the corresponding flexible circuit board and the radiation dielectric board, and connected to the antenna radiation arm. According to the small-sized big dipper antenna, the antenna is equipped with four helical IFA antennas, so that the overall antenna volume is reduced, the stability of the antenna signal is greatly improved, the deviation from a phase center to a geometric center is low, and the distribution range is small.
Description
Technical field
The present invention relates to small size antenna field, more specifically, relate to a kind of small-sized Beidou antenna.
Background technology
For the part industry user of China, benefit from the China of having put into operation " No. one, the Big Dipper " satellite navigation pilot system.As the pre-stage test stage of Beidou navigation satellite system, China successively succeeded in sending up two " No. one, the Big Dipper " operational satellites and a backup satellite from 2000, had successfully set up " No. one, the Big Dipper " satellite navigation pilot system.So far, China to also become after US and Russia the country that the 3rd has satellite navigation system.Compared with the satellite navigation and location system of other countries, " No. one, the Big Dipper ", except having the quick position suitable with GPS precision and accurate time transmission function, the short message communication function that it shows unique characteristics is also very advanced.This system is for the departments such as the communications and transportation in the development of the national economy, meteorology, oil, ocean, forest, communication, public security and other special industries provide efficient navigator fix service at present.But be limited by the restriction of power system capacity, temporarily cannot large-scale promotion application.
China's Beidou II navigation satellite is based upon on Big Dipper generation region satellite navigation system basis, this system mainly provides the passive location function being similar to GPS, its be no matter in navigate mode or coverage and other GPS (Global Position System) very similar.It is as China's important space infrastructure, is safeguarding national security, is promoting that national information Construction Party mask has irreplaceable effect, and the application of the popularization Big Dipper and industrialization are the only way which must be passed of the active demand of national strategy, science and technology power of Ye Shi China.The current national Big Dipper does tissue, corresponding authorities specifically implement, define national defence and civilian 20 departments totally 42 apply Big Dipper key special subjects demonstration project, comprise the projects such as traffic, meteorology, agricultural (fish-farming operation), middle movement, to promote Big Dipper Industry Promotion and application, the startup stage that this also indicating that the civilian exploitation of China's Beidou satellite navigation and positioning system has entered acceleration with popularization, the satellite navigation system of China's independent development will become the strategic industry involved the interests of the state and the people.
2010, China Satecom's navigator fix market production value was up to 70,000,000,000, but wherein the overwhelming majority is GPS product, the Big Dipper output value only about 1,500,000,000 yuan.By Beidou II estate planning in 10 years, 2010-2020 China Satecom navigation industry size will bring up to 4,000 hundred million yuan, Big Dipper application annual value of production will bring up to 80,000,000,000 yuan, 10 annual compound growth rates 48.83%, terminal annual turnover will bring up to 1,000 ten thousand from 20,000, within 10 years, increase by 500 times, substantially domesticize to the year two thousand twenty core product.Following 5-10 will be that China's Big Dipper presents explosive growth and forms the critical period of scale market and national leading enterprise.
The final functional realiey of dipper system is based on industrial application software, by the organic series combination of operation flow of navigator fix product, technology and user, based on provided navigation, location, time service and communication service function, for client provides systemic solution.
Current Beidou satellite navigation application system obtains more application in fields such as informatization on nation defence construction, vehicle management, hydrology change, power scheduling, sea fishery, Monitoring Pinpelines, weather monitorings.In the gross output value of ripe satellite navigation location industry country, major part created by the urban satellite navigation service industry, and according to the experience of developed country, in the industry gross output value of satellite navigation location, the urban satellite navigation service industry can account for 70% scale.Current China Beidou satellite navigation application system and operating service are still in the starting stage, and development space is huge, once realize the demand that scale will pull the products such as Big Dipper terminal, Beidou antenna.
Satellite navigation system is important space fundamental facilities, can be widely used in the various aspects of social life, has great politics, military affairs, social effect, also can bring huge economic benefit for the mankind.Beidou satellite navigation system is the satellite navigation system of China's independent research, independent operating, along with the progressively application of " Big Dipper " satellite navigation system, navigation terminal tends to portable day by day: light, thin, short, little, this has higher requirement to navigation terminal antenna, therefore, development and Application also just obtains in the miniaturization of satellite positioning-terminal, high performance antenna and payes attention to more and more widely.In actual applications, because Big Dipper B3 frequency range is on the low side at the Big Dipper numerous working frequency range medium frequency, B3 circular polarized antenna size is general all larger on the market, be not easy to the installation of miniaturized handheld device and carry, the miniaturization of the Beidou II B3 antenna therefore in miniaturized handheld device, the problem such as circular polarization and beamwidth has also just become the emphasis of research.
Summary of the invention
The object of the invention is to the volume significantly reducing Big Dipper B3 antenna, according to this goal of the invention, a kind of small-sized Beidou antenna is provided, comprise radiation medium plate, flexible PCB and antenna body, the end to end formation of flexible PCB is cylindrical, and stand on radiation medium plate, described antenna body comprises aerial radiation arm, distributing point and feedback place, described distributing point is arranged on the contact wire of described flexible PCB and radiation medium plate, be connected with aerial radiation arm at described distributing point, described aerial radiation arm rotates around flexible PCB, described feedback place is also arranged on the contact wire of flexible PCB and radiation medium plate, and be connected on aerial radiation arm.
Described flexible PCB is provided with multiple antenna body, equidistant being distributed on flexible PCB of described antenna body.
Described flexible PCB is provided with 4 antenna bodies.
Described aerial radiation arm sends right-handed circular polarization ripple.
About described aerial radiation arm rotating 360 degrees.
Described Beidou antenna also comprises antenna protection shell, and described antenna body and flexible PCB are arranged with in antenna protection shell.
Described radiation medium plate comprises the pcb board that band merit divides phase-shift network.
According to distributing point and the distance adjustment single channel B3 frequency band resonance of presenting place.
Of the present invention be intended to propose a kind of miniaturized four-arm spiral antenna being applied to Beidou II B3 frequency range; this antenna size is φ 18.5mm*H15mm; employing air dielectric is filled; antenna outside has conventional PC/ABS to expect protecting sheathing; antenna bottom is that merit divides phase-shift network circuit; this antenna scheme is the longitudinal IFA antennas of four helical form constant amplitudes; each root IFA antenna is a linear polarization IFA antenna; the merit that the distributing point of the longitudinal IFA antennas of four helical form constant amplitudes is connected to pcb board end divides phase-shift network circuit, exports right-handed circular polarization signal.
Wherein the longitudinal IFA antenna of four helical form constant amplitudes with the thick flexible PCB of 0.2mm for radiation medium, flexible PCB IFA antenna and PCB form certain inclination angle, and rotate by right-handed circular polarization rotation direction, the feedback point of flexible PCB IFA antenna is arranged on pcb board end, and differ 90 degree between two, each IFA antenna feed place and distributing point form a segment distance, in order to regulate the impedance matching of each IFA antenna, the merit that each IFA antenna feed point is connected to pcb board end divides phase-shift network, circular polarization device and plate end microstrip line is utilized to form right-handed circular polarization four-arm spiral antenna.
The antenna structure that the present invention proposes mainly comprises pcb board, flexible circuit board antenna and antenna protection shell composition, and described pcb board comprises antenna feed point and merit divides phase-shift network circuit; Described flexible circuit board antenna cylindrically, and has on its surface and covers copper antenna cabling, and described antenna protection shell is expected to form by PC/ABS.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is antenna return loss figure of the present invention.
Fig. 3 is antenna E surface radiation directional diagram of the present invention.
Fig. 4 is that directional diagram is put in antenna 3D of the present invention radiation.
Wherein 1 is pcb board, and 2 is antenna body, and 3 is antenna protection shell, and 101 is distributing point, and 102 is feedback place, and 103 is aerial radiation arm.
Embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.Unless stated otherwise, the present invention adopts reagent, equipment and method are conventional commercial reagent, equipment and the conventional method used of the art.
Embodiment 1
A kind of small-sized Beidou antenna, comprise radiation medium plate, flexible PCB and antenna body, the end to end formation of flexible PCB is cylindrical, and stand on radiation medium plate, antenna body comprises aerial radiation arm, distributing point and feedback place, distributing point is arranged on the contact wire of described flexible PCB and radiation medium plate, be connected with aerial radiation arm at distributing point, aerial radiation arm rotates around flexible PCB, feedback place is also arranged on the contact wire of flexible PCB and radiation medium plate, and be connected on aerial radiation arm, flexible PCB is provided with 4 antenna bodies, what antenna body was equidistant is distributed on flexible PCB, aerial radiation arm sends right-handed circular polarization ripple, about aerial radiation arm rotating 360 degrees, Beidou antenna also comprises antenna protection shell, antenna body and flexible PCB arrange with in antenna protection shell, radiation medium plate comprises the pcb board that band merit divides phase-shift network.
Embodiment 2
In the implementation case, antenna scheme provided by the invention can obtain good performance.As shown in Figure 1, 2, this antenna structure mainly comprises the pcb board 1 that band merit divides phase-shift network, flexible circuit board antenna 2 and antenna protection shell 3; Wherein, the pcb board 1 of phase-shift network is divided to divide phase-shift network circuit to form by aerial radiation dielectric-slab and merit with merit, the edge of aerial radiation dielectric-slab has four groups to present point, feedback point is divided into distributing point 101 and feedback place 102, distributing point is up aerial radiation arm 103, aerial radiation arm 103 rotates to an angle (about 360 degree) around flexible PCB medium, be formed in the resonance of Big Dipper B3 frequency range, single channel B3 frequency band resonance is regulated, to reach optimization by the distance in adjustment distributing point 101 and feedback place 102.
Four longitudinal IFA antennas of helical form constant amplitude are (by distributing point 101, feedback place 102 and aerial radiation arm 103 form) with the thick flexible PCB of 0.2mm for radiation medium, by about right-handed circular polarization rotation direction rotating 360 degrees, form the amplitude synchronous B3 band antenna resonance such as four tunnels, distributing point 101 and feedback place 102 are arranged on pcb board end, and differ 90 degree between two, the merit that each IFA antenna feed point is connected to pcb board end divides phase-shift network, utilizes the merit of pcb board end to divide phase-shift network circuit to form right-handed circular polarization four-arm spiral antenna.
Complete closure metal outer frame 1 is enclosed around medium substrate 1 one, and is connected with medium substrate 2.The surface of medium substrate 2 is provided with copper clad layers, and its two ends are provided with the headroom district of maximum 5mm, and antenna part 3 is in this headroom district.Be provided with the non-conductive section of proper width between complete closure metal edge frame 1 and medium substrate 2, and non-conductive section is connected with the headroom district residing for antenna part 3.Non-conductive section can be realized by fluting in medium substrate 2.In the implementation case, two that are provided with that one is long and the other is short long and narrow gaps, wherein arrange slit gap section 104 in the side of medium substrate, arrange short gap section 105 at opposite side.It is noted that the number of gap section and length can adjust according to the actual conditions of case.
With reference to figure 2-4 be, S parameter of the present invention, 2D antenna pattern and 3D antenna pattern.Wherein 2D directional diagram contains gain corresponding to the different elevation angle of antenna.
In sum, the invention provides a kind of miniaturized four-arm spiral antenna scheme being applied to Beidou II B3 frequency range, the advantage of the program has size little, lightweight, and keep well covering within the scope of 360 degree, azimuth, 5 degree to 90 degree, the elevation angle, the present invention differs the mode of 90 degree of feeds successively by four strip antenna arms in addition, realize the heart-shaped and broad beam circular polarization radiation directional diagram of Big Dipper B3 frequency range, and ensure that antenna system phase center departs from that geometric center is little, distribution is little and the feature such as high stability.
It should be noted that; above-described enforcement is only understand for the ease of those skilled in the art; be not limited to protection scope of the present invention; the present invention is applicable to the mobile device of different size; without departing from the inventive concept of the premise; the any apparent movement that those skilled in the art do the present invention, replacement and improvement etc. are all within protection scope of the present invention.
Claims (8)
1. a small-sized Beidou antenna, it is characterized in that, comprise radiation medium plate, flexible PCB and antenna body, the end to end formation of flexible PCB is cylindrical, and stand on radiation medium plate, described antenna body comprises aerial radiation arm, distributing point and feedback place, described distributing point is arranged on the contact wire of described flexible PCB and radiation medium plate, be connected with aerial radiation arm at described distributing point, described aerial radiation arm rotates around flexible PCB, described feedback place is also arranged on the contact wire of flexible PCB and radiation medium plate, and be connected on aerial radiation arm.
2. Beidou antenna according to claim 1, is characterized in that, described flexible PCB is provided with multiple antenna body, equidistant being distributed on flexible PCB of described antenna body.
3. Beidou antenna according to claim 2, is characterized in that, described flexible PCB is provided with 4 antenna bodies.
4. Beidou antenna according to claim 1, is characterized in that, described aerial radiation arm sends right-handed circular polarization ripple.
5. Beidou antenna according to claim 1, is characterized in that, about described aerial radiation arm rotating 360 degrees.
6. Beidou antenna according to claim 1, is characterized in that, described Beidou antenna also comprises antenna protection shell, and described antenna body and flexible PCB are arranged with in antenna protection shell.
7. Beidou antenna according to claim 1, is characterized in that, described radiation medium plate comprises the pcb board that band merit divides phase-shift network.
8. Beidou antenna according to claim 1, is characterized in that, according to distributing point and the distance adjustment single channel B3 frequency band resonance of presenting place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062284.6A CN105552546A (en) | 2016-01-29 | 2016-01-29 | Small-sized big dipper antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062284.6A CN105552546A (en) | 2016-01-29 | 2016-01-29 | Small-sized big dipper antenna |
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| Publication Number | Publication Date |
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| CN105552546A true CN105552546A (en) | 2016-05-04 |
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| CN201610062284.6A Pending CN105552546A (en) | 2016-01-29 | 2016-01-29 | Small-sized big dipper antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257008A (en) * | 2017-05-21 | 2017-10-17 | 湖北航天技术研究院总体设计所 | A kind of flexible antennas installs protector |
| CN107425273A (en) * | 2017-07-18 | 2017-12-01 | 福建福大北斗通信科技有限公司 | A kind of Big Dipper spar buoy antenna |
| CN109638424A (en) * | 2018-12-19 | 2019-04-16 | 航天恒星科技有限公司 | A kind of miniaturization Monobrachial spiral antenna |
| CN113193340A (en) * | 2021-04-09 | 2021-07-30 | 中国民航大学 | Light and small Beidou multi-arm measurement type antenna based on FPC (flexible printed circuit) flexible material |
Citations (5)
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| US20060109196A1 (en) * | 2004-11-25 | 2006-05-25 | High Tech Computer, Corp. | Helix antenna and method for manufacturing the same |
| CN103915679A (en) * | 2014-03-31 | 2014-07-09 | 北京自动化控制设备研究所 | Quadrifilar helix antenna with resonant top end |
| CN203747041U (en) * | 2014-03-27 | 2014-07-30 | 中国电子科技集团公司第五十四研究所 | Broadband wide-beam circular polarization quadrifilar helical antenna |
| CN204216221U (en) * | 2014-12-10 | 2015-03-18 | 南京长峰航天电子科技有限公司 | 2.8GHz prints four-arm spiral antenna |
| CN105244606A (en) * | 2015-11-11 | 2016-01-13 | 上海海积信息科技股份有限公司 | Quadrifilar helix antenna |
-
2016
- 2016-01-29 CN CN201610062284.6A patent/CN105552546A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060109196A1 (en) * | 2004-11-25 | 2006-05-25 | High Tech Computer, Corp. | Helix antenna and method for manufacturing the same |
| CN203747041U (en) * | 2014-03-27 | 2014-07-30 | 中国电子科技集团公司第五十四研究所 | Broadband wide-beam circular polarization quadrifilar helical antenna |
| CN103915679A (en) * | 2014-03-31 | 2014-07-09 | 北京自动化控制设备研究所 | Quadrifilar helix antenna with resonant top end |
| CN204216221U (en) * | 2014-12-10 | 2015-03-18 | 南京长峰航天电子科技有限公司 | 2.8GHz prints four-arm spiral antenna |
| CN105244606A (en) * | 2015-11-11 | 2016-01-13 | 上海海积信息科技股份有限公司 | Quadrifilar helix antenna |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257008A (en) * | 2017-05-21 | 2017-10-17 | 湖北航天技术研究院总体设计所 | A kind of flexible antennas installs protector |
| CN107425273A (en) * | 2017-07-18 | 2017-12-01 | 福建福大北斗通信科技有限公司 | A kind of Big Dipper spar buoy antenna |
| CN109638424A (en) * | 2018-12-19 | 2019-04-16 | 航天恒星科技有限公司 | A kind of miniaturization Monobrachial spiral antenna |
| CN113193340A (en) * | 2021-04-09 | 2021-07-30 | 中国民航大学 | Light and small Beidou multi-arm measurement type antenna based on FPC (flexible printed circuit) flexible material |
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Application publication date: 20160504 |
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