CN101752653A - Double-mode time service active antenna - Google Patents
Double-mode time service active antenna Download PDFInfo
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- CN101752653A CN101752653A CN200810080082A CN200810080082A CN101752653A CN 101752653 A CN101752653 A CN 101752653A CN 200810080082 A CN200810080082 A CN 200810080082A CN 200810080082 A CN200810080082 A CN 200810080082A CN 101752653 A CN101752653 A CN 101752653A
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Abstract
The invention relates to a double-mode time service active antenna which comprises a ceramic dielectric antenna, a low-noise amplifier unit, an anti-lightning, -surge and -impact circuit, a power supply voltage stabilizing circuit, an N-type pin electric connector, a double-sided printed copper-clad plate with a microstrip circuit and an antenna shell, and is characterized in that the ceramic dielectric antenna, the low-noise amplifier unit, the anti-lightning, -surge and -impact circuit and the power supply voltage stabilizing circuit are subsequently connected through a microstrip connection line on the double-sided printed copper-clad plate to form a circuit module of the double-mode time service active antenna; a double-star radio frequency signal output by the amplifier unit is connected with the N-type pin electric connector through a coaxial cable; an N-type radio frequency output end of the pin electric connector is arranged on a pre-reserved hole of the shell; and the double-mode time service active antenna realizes the function of receiving GPS and 'Dipper II' time service signals through optimized design, thereby not only improving the time service reliability and flexibility of a base station, but also reducing the equipment manufacturing cost.
Description
Technical field:
The time-service active antenna that the present invention relates to use in mobile radio telecommunications, the double star bimodulus receive mode that is adopted can realize high-gain, anti-interference and highly reliable requirement, belongs to moving communicating field.
Background technology:
At present in CDMA, CDMA2000 and TD-SCDMA mobile communication system, the time service of main employing GPS of USA satellite is synchronous, and in the years to come, China will launch serial Big Dipper navigation satellite successively, thereby satisfy China and surrounding area user demand, and progressively expand to GPS (Global Position System) satellite navigation system.In " two generations of the Big Dipper " that China will soon set up, are Position Fixing Navigation System (COMPASS-M1), is made up of five satellites and 30 non-geo satellites, can provide two kinds of methods of service, i.e. open service and authorization service.Open service is to provide free the location at service area, test the speed and the time service service, and positioning accuracy is 10 meters, and time service precision is 50ns, rate accuracy 0.2 meter per second, and wherein time service precision is the same substantially with the GPS time service precision.Switch for guarantee that existing communication device is realized stablizing in different satellite time service services, just require base station system must receive two kinds of satellite time signals simultaneously.At present, in the disclosed patent that can serve two kinds of satellite time services service, mostly propose at " No. one, the Big Dipper " and gps satellite, because " No. one, the Big Dipper " time service frequency range is arranged on 2491.75MHz, bigger apart with GPS time service frequency range 1575.42MHz, therefore two time-service active antennas must be set before receiver.The center frequency range of China's " two generations of the Big Dipper " time service service has been determined at 1561.098MHz, therefore, can realize receiving simultaneously the time-service active antenna of GPS and " two generations of the Big Dipper " satellite-signal by optimal design, this has not only improved the reliability and the flexibility of base station time service, also can reduce the device fabrication cost simultaneously.
Summary of the invention:
Problem to be solved by this invention provides a kind of double-mode time service active antenna that can receive GPS and " two generations of the Big Dipper " satellite service simultaneously.
The present invention is made up of ceramic medium antenna, low noise amplifier unit, anti-lightning strike surge impact circuit, the voltage stabilizing circuit of powering, the two-sided printing copper-clad plate that contains microstrip circuit, N type needle electric coupler, antenna casing, it is characterized in that: ceramic medium antenna, low noise amplifier unit, anti-lightning strike surge impact circuit, power supply voltage stabilizing circuit connect successively by the little band connecting line in the two-sided printing copper-clad plate, form the double-mode time service active antenna circuit module; Double star radiofrequency signal through the output of low noise amplifier unit connects N type needle electric coupler by coaxial cable; The N type radio-frequency (RF) output end of needle electric coupler is installed on the housing preformed hole; It is 1575.42MHz that the bimodulus time service receives frequency range GPS, and " two generations of the Big Dipper " are 1561.098MHz.
Described ceramic medium antenna is the double-frequency broadband reception antenna, can accept GPS and " two generations of the Big Dipper " satellite carrier signal simultaneously, or two ceramic medium antenna of accepting GPS and " two generations of the Big Dipper " satellite carrier signal respectively are set; This antenna is arranged at the one side of copper-clad plate, and is connected to low noise amplifier unit input by lead-in wire.
Described low noise amplifier unit is made up of preposition band pass filter, low noise amplifier, broadband band-pass filter, one chip amplifier and anti-lightning strike surge impact circuit and power supply voltage stabilizing circuit, and this module is positioned at the another side of copper-clad plate.
Described low noise amplifier is low noise field effect transistor or low noise integrated amplifier.
Described broadband band-pass filter adopts SAW (Surface Acoustic Wave) device or Ceramic Dielectric Filter part, and the frequency response bandwidth is 1550 to 1580MHz; Or the staggered tuning band pass filter of employing double frequency LC, f
01Be the 1575.42MHz of GPS, f
021561.098MHz for " two generations of the Big Dipper ".
Above-mentioned low noise amplifier unit uses the metallic shield shielding, wherein preposition band pass filter, low noise amplifier are arranged in the metallic enclosure, and broadband band-pass filter, one chip amplifier and anti-lightning strike surge impact circuit and power supply voltage stabilizing circuit are arranged in another metallic enclosure.
Described double-mode time service active antenna technical indicator is as follows:
(1) frequency range [MHz]: 1550-1580
(2) gain [dBi]: 34 ± 2
(3) noise factor [dB]:＜2.5@+25 ℃ (comprising prefilter)＜3.0@+80 ℃
(4) outer [dB]: the fo=1570MHz that suppresses of band
fo±30MHz ＞5
fo±50MHz ＞20
fo±100MHz ＞50
(5) input and output voltage standing-wave ratio :≤2.0
(6) direct current supply voltage [V]: 5 ± 0.5
(7) direct current supply electric current [mA]:＜45
(8) output impedance [Ω]: 50
(9) anti-surge (impact) immunity to interference performance
Meet GB/T17626.5-1999idt IEC 61000-4-5:1995 standard
Surge waveform: CWG composite wave, 1.2/50 μ s, 8/20 μ s
Voltage peak [V]: 〉=2000
Number of pulses: 10
(10) working temperature [℃] :-40～+ 80
(11) storage temperature [℃] :-45～+ 85
Described antenna casing is made up of cap and housing, and bimodulus time service reception antenna circuit module is installed in the antenna housing, and cap and housing seal are fastening, obtains complete bimodulus time service Active Receiving Antenna.
Described antenna housing is made by ASA plastics or anti-ultraviolet engineering plastics such as ABS, Merlon.
Special feature of the present invention is to adopt a broadband Active Receiving Antenna can receive GPS and " two generations of the Big Dipper " satellite time service carrier signal simultaneously, has so not only improved the reliability and the accuracy of base station time service, has reduced equipment cost simultaneously.
Description of drawings:
Fig. 1 is that circuit module of the present invention connects schematic block diagram
Fig. 2 is circuit module of the present invention and electric connector connection diagram
Fig. 3 is an overall construction drawing of the present invention
Wherein
1 ceramic medium antenna; 2 preposition band pass filters; 3 low noise amplifiers; 4 broadband band-pass filters; 5 one chip amplifiers; 6 anti-lightning strike surge impact circuit; 7 power supply voltage stabilizing circuits; 8 pin type electric connectors; 9 radomes; 10 caps; 11 housings; 12 double face copper
Embodiment:
Embodiment one:
Double-mode time service active antenna circuit module and N type needle electric coupler structure are as shown in Figure 1, 2, ceramic medium antenna 1 lead-in wire passes double face copper 12 and is connected with preposition band pass filter 2, the purpose that preposition band pass filter 2 is provided with is in order to prevent that mirror image from disturbing, little as environmental interference, can not be provided with yet; Low noise amplifier 3 inputs connect preposition band pass filter 2, send into broadband band-pass filter 4 through the radiofrequency signal of amplifying, Hz-KHz is 1550-1580MHz, guarantees that under the prerequisite that guarantees the double star radio frequency bandwidth sideband suppresses, and this is a key problem in technology of realizing that double star receives simultaneously.Monolithic amplifying circuit 5 is finished the amplification again of radiofrequency signal, and the radiofrequency signal through amplifying connects N type needle electric coupler 8 by coaxial cable.The N type interface end of needle electric coupler 8 is installed on the housing preformed hole, connects with the radio frequency coaxial-cable N Connector port that is connected base station receiver.Anti-lightning strike surge impact circuit 6 is connected successively with monolithic amplifying circuit 5 output ports; formation one has the amplification path of antijamming capability; voltage stabilizing circuit 7 power simultaneously under the protection of anti-lightning strike surge impact circuit 6, stable supply power voltage is flowed to low noise field-effect amplifier 3 and monolithic amplifying circuit 5.Preposition band pass filter 2, low noise amplifier 3 are arranged in the metallic enclosure; Broadband bandwidth-limited circuit 4, monolithic amplifying circuit 5, anti-lightning strike surge impact circuit 6, power supply voltage stabilizing circuit 7, be arranged in another metallic enclosure, implement grading screen and help improving anti-interference and reliability.
Embodiment two:
Ceramic medium antenna 1 lead-in wire passes double face copper and is connected with preposition band pass filter 2, low noise amplifier 3 inputs connect preposition band pass filter 2, send into band pass filter 4 through the radiofrequency signal that low noise amplifier 3 amplifies, it is staggered tuning that this band pass filter 4 is set to double frequency LC, and frequency response is respectively f
01Be 1575.42MHz, f
02Be 1561.098MHz, guarantee that under the prerequisite that guarantees double star radio frequency reception bandwidth sideband suppresses.Other are the same.
Whole double star time-service active antenna circuit module is installed in the antenna housing, and cap and housing seal are fastening, obtain complete double-mode time service active antenna, as shown in Figure 3.
Claims (8)
1. a double-mode time service active antenna is made up of ceramic medium antenna, low noise amplifier unit, anti-lightning strike surge impact circuit, power supply voltage stabilizing circuit, N type needle electric coupler, the two-sided printing copper-clad plate, the antenna casing that contain microstrip circuit, it is characterized in that: ceramic medium antenna, low noise amplifier unit, anti-lightning strike surge impact circuit, power supply voltage stabilizing circuit connect successively by the little band connecting line in the two-sided printing copper-clad plate, form the double-mode time service active antenna circuit module; Double star radiofrequency signal through amplifier unit output connects N type needle electric coupler by coaxial cable; The N type radio-frequency (RF) output end of needle electric coupler is installed on the housing preformed hole; The bimodulus time service receives frequency range and is respectively the L1 frequency range 1575.42MHz of GPS and the B1 frequency range 1561.098MHz in " two generations of the Big Dipper ".
2. according to the described a kind of double-mode time service active antenna of claim 1, it is characterized in that: described ceramic medium antenna is a broad-band reception antenna, can accept GPS and " two generations of the Big Dipper " satellite carrier signal simultaneously; Or two ceramic medium antenna of accepting GPS and " two generations of the Big Dipper " satellite carrier signal respectively are set; This antenna is arranged at the one side of copper-clad plate, and is connected to low noise amplifier unit input by lead-in wire.
3. according to the described a kind of double-mode time service active antenna of claim 1, it is characterized in that: described ceramic medium antenna is arranged at the one side of copper-clad plate, and is connected to low noise amplifier unit input by lead-in wire.
4. according to the described a kind of double-mode time service active antenna of claim 1, it is characterized in that: described low noise amplifier unit is made up of preposition band pass filter, low noise amplifier, broadband band-pass filter, one chip amplifier, and and anti-lightning strike surge impact circuit and the power supply voltage stabilizing circuit constitute the double-mode time service active antenna circuit module jointly, this module is positioned at the another side of copper-clad plate.
5. according to claim 1,4 described a kind of double-mode time service active antennas, it is characterized in that: described low noise amplifier is low noise field effect transistor or low noise integrated amplifier.
6. according to claim 1,4 described a kind of double-mode time service active antennas, it is characterized in that: described broadband band-pass filter adopts SAW (Surface Acoustic Wave) device or Ceramic Dielectric Filter part, and the frequency response bandwidth is 1550 to 1580MHz; Or the staggered tuning band pass filter of employing double frequency LC, wherein f
01Be the 1575.42MHz of GPS, f
021561.098MHz for " two generations of the Big Dipper " forms broadband band-pass filter jointly.
7. according to claim 1,4 described a kind of double-mode time service active antennas, it is characterized in that: above-mentioned low noise amplifier unit uses the metallic shield shielding, wherein preposition band pass filter, low noise amplifier are arranged in the metallic enclosure, and broadband band-pass filter, one chip amplifier and anti-lightning strike surge impact circuit and power supply voltage stabilizing circuit are arranged in another metallic enclosure.
8. a kind of double-mode time service active antenna according to claim 1 is characterized in that: described antenna casing is made up of cap and housing, and bimodulus time service Active Receiving Antenna circuit module is installed in the antenna housing, and cap and housing seal are fastening; Antenna casing is made by ASA plastics or anti-ultraviolet engineering plastics such as ABS, Merlon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810080082A CN101752653A (en) | 2008-12-12 | 2008-12-12 | Double-mode time service active antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810080082A CN101752653A (en) | 2008-12-12 | 2008-12-12 | Double-mode time service active antenna |
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| CN101752653A true CN101752653A (en) | 2010-06-23 |
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| CN200810080082A Pending CN101752653A (en) | 2008-12-12 | 2008-12-12 | Double-mode time service active antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122130A (en) * | 2010-12-16 | 2011-07-13 | 成都天奥电子股份有限公司 | Second generation Beidou satellite time service watch and implementation method thereof |
| CN102769489A (en) * | 2011-05-05 | 2012-11-07 | 河北威奥电子科技有限公司 | Lightning-protection type GNSS (Global Navigation Satellite System) signal relay amplifier |
| CN103513259A (en) * | 2013-09-21 | 2014-01-15 | 江西车仆电子智能科技有限公司 | Dual-mode positioning and timing system |
| CN104409857A (en) * | 2014-11-28 | 2015-03-11 | 中国航天时代电子公司 | GPS/BDII three-frequency double-system active satellite navigation receiving antenna applied to micro-miniature unmanned aerial vehicle |
| CN106291623A (en) * | 2015-05-25 | 2017-01-04 | 张建城 | Big dipper multi-mode timing and navigation radio-frequency front-end Antenna Assemblies |
| CN111384992A (en) * | 2020-02-19 | 2020-07-07 | 深圳市大富科技股份有限公司 | Connection device, transceiver, base station and communication method of connection device |
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| CN2786640Y (en) * | 2005-04-30 | 2006-06-07 | 中国科学院国家授时中心 | GPS and Big Dipper receiver signal auto and manual switching equipment |
| CN201007739Y (en) * | 2006-10-19 | 2008-01-16 | 中国人民解放军总装备部汽车试验场 | Beidou and GPS navigation information syncretizing machine |
| CN201311964Y (en) * | 2008-12-12 | 2009-09-16 | 石家庄世纪森诺通讯有限公司 | Double mode time service active antenna |
-
2008
- 2008-12-12 CN CN200810080082A patent/CN101752653A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2786640Y (en) * | 2005-04-30 | 2006-06-07 | 中国科学院国家授时中心 | GPS and Big Dipper receiver signal auto and manual switching equipment |
| CN201007739Y (en) * | 2006-10-19 | 2008-01-16 | 中国人民解放军总装备部汽车试验场 | Beidou and GPS navigation information syncretizing machine |
| CN201311964Y (en) * | 2008-12-12 | 2009-09-16 | 石家庄世纪森诺通讯有限公司 | Double mode time service active antenna |
Non-Patent Citations (2)
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| 张广军、陆珉、黄春琳: "基于双星定位的4G监控报警系统设计", 《电子工程师》 * |
| 李力强: "基于北斗/GPS/ECDIS的战时舰船管理系统研究", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122130A (en) * | 2010-12-16 | 2011-07-13 | 成都天奥电子股份有限公司 | Second generation Beidou satellite time service watch and implementation method thereof |
| CN102769489A (en) * | 2011-05-05 | 2012-11-07 | 河北威奥电子科技有限公司 | Lightning-protection type GNSS (Global Navigation Satellite System) signal relay amplifier |
| CN103513259A (en) * | 2013-09-21 | 2014-01-15 | 江西车仆电子智能科技有限公司 | Dual-mode positioning and timing system |
| CN104409857A (en) * | 2014-11-28 | 2015-03-11 | 中国航天时代电子公司 | GPS/BDII three-frequency double-system active satellite navigation receiving antenna applied to micro-miniature unmanned aerial vehicle |
| CN104409857B (en) * | 2014-11-28 | 2017-12-15 | 中国航天时代电子公司 | A kind of frequency dual system active satellites of GPS/BDII tri- navigation reception antenna applied to Small and micro-satellite |
| CN106291623A (en) * | 2015-05-25 | 2017-01-04 | 张建城 | Big dipper multi-mode timing and navigation radio-frequency front-end Antenna Assemblies |
| CN111384992A (en) * | 2020-02-19 | 2020-07-07 | 深圳市大富科技股份有限公司 | Connection device, transceiver, base station and communication method of connection device |
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Application publication date: 20100623 |