CN202975327U - Multi-frequency satellite signal forwarding equipment - Google Patents
Multi-frequency satellite signal forwarding equipment Download PDFInfo
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- CN202975327U CN202975327U CN 201220702595 CN201220702595U CN202975327U CN 202975327 U CN202975327 U CN 202975327U CN 201220702595 CN201220702595 CN 201220702595 CN 201220702595 U CN201220702595 U CN 201220702595U CN 202975327 U CN202975327 U CN 202975327U
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Abstract
The utility model discloses multi-frequency satellite signal forwarding equipment, which comprises a multi-frequency active receiving antenna, a forwarding host machine and a multi-frequency transmitting antenna, wherein the multi-frequency active receiving antenna is used for receiving multi-frequency satellite signals; the forwarding host machine is connected with the multi-frequency active receiving antenna through a cable and used for filtering, amplifying and forwarding the received satellite signals; and the multi-frequency transmitting antenna is connected with the forwarding host machine through the cable and used for transmitting processed satellite signals. By implementing the technical proposal, the multi-frequency satellite signal forwarding equipment disclosed by the utility model is applied to integrated navigation development tendency of a multi-satellite navigation system; furthermore, the multi-frequency satellite signal forwarding equipment has the advantages of being low in cost, small in volume, high in gain and wide in signal coverage range.
Description
Technical field
The utility model relates to signal and forwards the field, relates in particular to a kind of multifrequency satellite signal forwarding unit.
Background technology
at present, GPS is arranged in global range, GLONASS, the Big Dipper, four navigation positioning systems of Galileo, along with developing rapidly of satellite navigation location cause, bearing accuracy has been proposed more and more higher requirement, navigator has generally adopted multisystem integrated navigation location technology to improve precision and degree of stability, this will differentiate boat equipment wants to receive simultaneously and to process the satellite-signal of a plurality of frequencies, while is in the test of navigator, maintenance, produce many application scenarioss such as debugging, all rely on the covering of multifrequency satellite signal, and use the zone than the buildings of comparatively dense at some, dense forest district, indoor, the zones such as hypogee, because existence is blocked and shielding causes and receives weak output signal and there is no signal even fully, this just needs the signal forwarding unit, and require forwarding unit can forward same satellite navigation system a plurality of frequencies satellite-signal or can forward simultaneously the satellite-signal of a plurality of frequencies of a plurality of satellite navigation systems.
Existing satellite-signal forwarding unit is all generally the simple signal forwarding unit, and gain is lower, can only coverage be generally the zone of radius 30m.If need to forward simultaneously the signal of a plurality of satellite navigation systems and cover larger scope, will overlap forwarding unit more and work simultaneously and also will add relay amplifier and coordinate, both increased cost and also relatively taken up room, do not conform to the trend of present device miniaturization.
The utility model content
The technical problems to be solved in the utility model is, for the above-mentioned defective of prior art, provides the multifrequency satellite signal that a kind of cost is low, the space is little forwarding unit.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of multifrequency satellite signal forwarding unit, comprising:
Multifrequency Active Receiving Antenna for the satellite-signal that receives a plurality of frequencies;
Be connected by cable with described multifrequency Active Receiving Antenna, and be used for the satellite-signal that receives is carried out the forwarding main frame of filtering, amplification, forward process;
Be connected by cable with described forwarding main frame, and be used for the multifrequency emitting antenna of the satellite-signal after emission is processed.
In multifrequency satellite signal forwarding unit described in the utility model, described forwarding main frame comprises shell and setting in the enclosure and the first low noise amplification module, attenuation module and the second low noise amplification module that connect successively.
In multifrequency satellite signal forwarding unit described in the utility model, described attenuation module is the adjustable attenuation module of gain.
in multifrequency satellite signal forwarding unit described in the utility model, described the first low noise amplification module comprises: the first low noise amplifier, the second low noise amplifier, the first broadband filter, the first power amplifier, the first narrow band filter, the second power amplifier and the 3rd power amplifier, wherein, described the first low noise amplifier, the second low noise amplifier cascade arranges, and the input end of described the first low noise amplifier connects described multifrequency Active Receiving Antenna by cable, the output terminal of described the second low noise amplifier connects respectively the input end of described the first broadband filter and the input end of described the first narrow band filter, the output terminal of described the first broadband filter connects the input end of described the first power amplifier, the output terminal of described the first narrow band filter connects the input end of described the second power amplifier, the output terminal of described the second power amplifier connects the input end of described the 3rd power amplifier, the output terminal of the output terminal of described the first power amplifier and described the 3rd power amplifier connects the input end of described attenuation module in the lump.
In multifrequency satellite signal forwarding unit described in the utility model, described the first low noise amplification module also comprises the second broadband filter and the second narrow band filter, wherein, described the second broadband filter is connected between the input end of the output terminal of described the first power amplifier and described attenuation module, and described the second narrow band filter is connected between the input end of the output terminal of described the second power amplifier and described the 3rd power amplifier.
in multifrequency satellite signal forwarding unit described in the utility model, described the second low noise amplification module comprises: the 3rd low noise amplifier, the 4th low noise amplifier, the 3rd broadband filter, the 4th power amplifier, the 3rd narrow band filter, the 5th power amplifier and the 6th power amplifier, wherein, described the 3rd low noise amplifier, the 4th low noise amplifier cascade arranges, and the input end of described the 3rd low noise amplifier connects the output terminal of described attenuation module, the output terminal of described the 4th low noise amplifier connects respectively the input end of described the 3rd broadband filter and the input end of described the 3rd narrow band filter, the output terminal of described the 3rd broadband filter connects the input end of described the 4th power amplifier, the output terminal of described the 3rd narrow band filter connects the input end of described the 5th power amplifier, the output terminal of described the 5th power amplifier connects the input end of described the 6th power amplifier, the output terminal of the output terminal of described the 4th power amplifier and described the 6th power amplifier connects described multifrequency emitting antenna by cable in the lump.
In multifrequency satellite signal forwarding unit described in the utility model, described the second low noise amplification module also comprises the 4th broadband filter and the 4th narrow band filter, wherein, the input end of described the 4th broadband filter connects the output terminal of described the 4th power amplifier, the output terminal of described the 4th broadband filter connects described multifrequency emitting antenna by cable, and described the 4th narrow band filter is connected between the input end of the output terminal of described the 5th power amplifier and described the 6th power amplifier.
In multifrequency satellite signal forwarding unit described in the utility model, described forwarding main frame also comprises:
The power interface that is used for the incoming transport civil power;
Be connected to described power interface, described the first low noise amplification module, attenuation module and the second low noise amplification module, and for electric main being converted to direct current and being the power module that described the first low noise amplification module, attenuation module and the second low noise are amplified module for power supply.
In multifrequency satellite signal forwarding unit described in the utility model, described shell comprises front panel and rear panel, is provided with signal input interface, signal output interface on described front panel and is used for regulating the adjusting button that gains; Described power interface is arranged on described rear panel.
In multifrequency satellite signal forwarding unit described in the utility model, described signal input interface, signal output interface are the N-type interface.
Implement the technical solution of the utility model, this multifrequency satellite signal forwarding unit is applicable to the development trend of multi-satellite navigation system in combination navigation, and cost is low, volume is little, and gain high, signal cover is large.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the schematic diagram of the utility model multifrequency satellite signal forwarding unit embodiment one;
Fig. 2 is the logical diagram of the forwarding main frame of the utility model multifrequency satellite signal forwarding unit;
Fig. 3 is the structural representation of the forwarding main frame of the utility model multifrequency satellite signal forwarding unit.
Embodiment
Fig. 1 is the schematic diagram of the utility model multifrequency satellite signal forwarding unit embodiment one, this multifrequency satellite signal forwarding unit comprises multifrequency Active Receiving Antenna (hereinafter to be referred as receiving antenna), forward main frame and multifrequency emitting antenna (hereinafter to be referred as emitting antenna), wherein, forwarding main frame is connected by cable with emitting antenna with receiving antenna respectively, and, receiving antenna is used for receiving the satellite-signal of a plurality of frequencies, the satellite-signal of these a plurality of frequencies can be the satellite-signal of a plurality of frequencies of same satellite navigation system, can be also that a plurality of satellite navigation systems (comprise GPS, GLONASS, the Big Dipper, the satellite-signal of a plurality of frequencies Galileo), the multifrequency satellite signal that receives by cable transmission to forwarding main frame, this forwarding main frame carries out filtering to the satellite-signal that receives, amplify, forward process, then the satellite-signal after processing by cable transfers to emitting antenna, satellite-signal after this emitting antenna will be processed is emitted to mobile terminal.The application scenarios of the multifrequency satellite signal forwarding unit of this embodiment can be the test of receiver product and the indoor covering of signal, the test case of receiver product is as comprising: the navigation product production line, mobile phone (containing navigation feature) production line, the laboratory, research institutions etc. need to test the satellite navigation series products, the applied environments such as properties of product checking; The indoor covering of signal is such as comprising: aeronautical manufacture, aeronautical maintenance, laboratory, parking lot, mansion, navigation product sales field, indoor Demonstration Hall etc., these applied environments can rely on the multiple-frequency signal repeater system and realize that easily signal covers.And the multifrequency satellite signal forwarding unit of this embodiment is applicable to the development trend of multi-satellite navigation system in combination navigation, and cost is low, volume is little, and gain high, signal cover is large.
Fig. 2 is the logical diagram of the forwarding main frame of the utility model multifrequency satellite signal forwarding unit, and this forwarding main frame comprises the first low noise amplification module 10, attenuation module 20 and the second low noise amplification module 30 that is connected successively.
In the first low noise amplification module 10, low noise amplifier L1, low noise amplifier L2 cascade arrange, the input end of low noise amplifier L1 connects signal input interface RFin, and signal input interface RFin connects the receipts antenna by cable, the output terminal of low noise amplifier L2 connects respectively the input end of broadband filter F1 and the input end of narrow band filter F3, the output terminal of broadband filter F1 connects the input end of power amplifier L3, the input end of the output termination broadband filter F2 of power amplifier L3.The output terminal F3 of narrow band filter connects the input end of power amplifier L4, and the output terminal of power amplifier L4 connects the input end of narrow band filter F4, the input end of the output termination power amplifier L5 of narrow band filter F4.The output terminal of the output terminal of broadband filter F2 and power amplifier F5 connects the input end of attenuation module 20 in the lump.
About this first low noise amplification module 10, at first the satellite-signal that receives amplifies through low noise amplifier L1, the low noise amplifier L2 of cascade setting, this low noise amplifier L1, L2 select the amplifier that noise figure is little, stablize model, and the noise factor of whole forwarding main frame depends primarily on low noise amplifier L1, this two-stage amplifier of low noise amplifier level L2, and its cascade setting can reach the purpose that reduces the noise figure that forwards main frame.Then, the multifrequency satellite signal that receives carries out along separate routes filtering, amplifies and process, and then closes the road.Wherein, article one, branch road adopts broadband filter F1, F2, comprise 2 generations of the BD2-B1(Big Dipper in band), GPS, GLONASS(GLONASS) frequency range, this frequency range concentrates between 1555M ~ 1615M, the Out-of-band rejection of broadband filter F1, F2: 1475M:20dB, 1675M:20dB.The second branch road adopts narrow band filter F3, F4, includes only 1 generation of the BD1(Big Dipper in band) frequency range, this frequency range between 2482M ~ 2502M, the Out-of-band rejection of narrow band filter F3, F4: 2392M:20dB, 2592M:20dB.Should be noted that herein, broadband filter F2 and narrow band filter F4 are mainly used in after amplifying through power amplifier L3, power amplifier L4, the signal that suppresses other frequency range also can be amplified by this power amplifier L3, L4, thereby avoids the signal demodulating apparatus of back is had interference.In the fairly simple zone of signal spectrum, can save this broadband filter F2 and narrow band filter F4.In addition, power amplifier L3, L4, L5 all adopt the amplifier of high-gain low current, can improve like this gain that forwards main frame.
About attenuation module 20, the adjustable attenuation module of preferred gain, like this, satellite-signal power after active multifrequency receiving antenna and the first low noise amplification module 10 amplifications is larger, the system-gain adjustable function can be realized through the adjustable attenuation module 20 that gains in the centre, can reduce again the power input of the second low noise amplification module 30, design had both guaranteed gain not compressed, no-self excitation, the stability of assured forwarding main frame again like this.
In the second low noise amplification module 30, low noise amplifier L6, low noise amplifier L7 cascade arrange, and the input end of low noise amplifier L6 connects the output terminal of attenuation module 20, the output terminal of low noise amplifier L7 connects respectively the input end of broadband filter F5 and the input end of narrow band filter F7, the output terminal of broadband filter F5 connects the input end of power amplifier L8, the input end of the output termination broadband filter F6 of power amplifier L8.The output terminal of narrow band filter F7 connects the input end of power amplifier L9, the output terminal of power amplifier L9 connects the input end of narrow band filter F8, the input end of the output termination power amplifier L10 of narrow band filter F8, the output terminal of the output terminal of broadband filter F6 and power amplifier L10 meets signal output interface RFout in the lump, and signal output interface RFout connects described emitting antenna by cable.
This second low noise amplification module 30 is mainly used in high output 1dB compression point and high third order intermodulation performance, can guarantee that like this signal is not compressed, and not affected by nonlinear properties.Wherein, this two-stage of low noise amplifier L6, L7 also adopts the amplifier of low noise, high stability, and power amplifier L8, L9, L10 all adopt the high amplifier of P1dB, like this can satisfy the high-gain that forwards main frame require can the assured forwarding main frame stability.
Should be noted that also that at last signal input interface RFin, signal output interface RFout are preferably the N-type interface.In addition, in forwarding main frame, according to actual conditions, some components and parts can omit or increase, and preferably in situation, can reduce the quantity of power amplifier such as signal intensity; In the zone of signal spectrum more complicated, can add again wave filter and improve the Out-of-band rejection degree.
Fig. 3 is the structural representation of the forwarding main frame of the utility model multifrequency satellite signal forwarding unit, this forwarding main frame comprises shell and setting low noise amplification module, attenuation module, the second low noise amplification module and power module in the enclosure, and this attenuation module is the adjustable attenuation module of gain.Wherein, shell comprises front panel, rear panel and fixed head, is provided with signal input interface RFin, signal output interface RFout on front panel, is used for regulating adjusting button, the power switch that gains; Be provided with power interface on rear panel.Low noise amplification module, attenuation module, the second low noise amplification module and power module are arranged on fixed head, and, low noise amplification module, attenuation module, the second low noise amplification module are connected in turn between signal input interface RFin, signal output interface RFout, power module is connected in power interface, and for electric main being converted to direct current and being the power module that described low noise amplification module, attenuation module and the second low noise are amplified module for power supply.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present utility model.
Claims (10)
1. a multifrequency satellite signal forwarding unit, is characterized in that, comprising:
Multifrequency Active Receiving Antenna for the satellite-signal that receives a plurality of frequencies;
Be connected by cable with described multifrequency Active Receiving Antenna, and be used for the satellite-signal that receives is carried out the forwarding main frame of filtering, amplification, forward process;
Be connected by cable with described forwarding main frame, and be used for the multifrequency emitting antenna of the satellite-signal after emission is processed.
2. multifrequency satellite signal forwarding unit according to claim 1, is characterized in that, described forwarding main frame comprises shell and setting in the enclosure and the first low noise amplification module, attenuation module and the second low noise amplification module that connect successively.
3. multifrequency satellite signal forwarding unit according to claim 2, is characterized in that, described attenuation module is the adjustable attenuation module of gain.
4. according to claim 2 or 3 described multifrequency satellite signal forwarding units, it is characterized in that, described the first low noise amplification module comprises: the first low noise amplifier, the second low noise amplifier, the first broadband filter, the first power amplifier, the first narrow band filter, the second power amplifier and the 3rd power amplifier, wherein, described the first low noise amplifier, the second low noise amplifier cascade arranges, and the input end of described the first low noise amplifier connects described multifrequency Active Receiving Antenna by cable, the output terminal of described the second low noise amplifier connects respectively the input end of described the first broadband filter and the input end of described the first narrow band filter, the output terminal of described the first broadband filter connects the input end of described the first power amplifier, the output terminal of described the first narrow band filter connects the input end of described the second power amplifier, the output terminal of described the second power amplifier connects the input end of described the 3rd power amplifier, the output terminal of the output terminal of described the first power amplifier and described the 3rd power amplifier connects the input end of described attenuation module in the lump.
5. multifrequency satellite signal forwarding unit according to claim 4, it is characterized in that, described the first low noise amplification module also comprises the second broadband filter and the second narrow band filter, wherein, described the second broadband filter is connected between the input end of the output terminal of described the first power amplifier and described attenuation module, and described the second narrow band filter is connected between the input end of the output terminal of described the second power amplifier and described the 3rd power amplifier.
6. multifrequency satellite signal forwarding unit according to claim 4, it is characterized in that, described the second low noise amplification module comprises: the 3rd low noise amplifier, the 4th low noise amplifier, the 3rd broadband filter, the 4th power amplifier, the 3rd narrow band filter, the 5th power amplifier and the 6th power amplifier, wherein, described the 3rd low noise amplifier, the 4th low noise amplifier cascade arranges, and the input end of described the 3rd low noise amplifier connects the output terminal of described attenuation module, the output terminal of described the 4th low noise amplifier connects respectively the input end of described the 3rd broadband filter and the input end of described the 3rd narrow band filter, the output terminal of described the 3rd broadband filter connects the input end of described the 4th power amplifier, the output terminal of described the 3rd narrow band filter connects the input end of described the 5th power amplifier, the output terminal of described the 5th power amplifier connects the input end of described the 6th power amplifier, the output terminal of the output terminal of described the 4th power amplifier and described the 6th power amplifier connects described multifrequency emitting antenna by cable in the lump.
7. multifrequency satellite signal forwarding unit according to claim 6, its feature is being, described the second low noise amplification module also comprises the 4th broadband filter and the 4th narrow band filter, wherein, the input end of described the 4th broadband filter connects the output terminal of described the 4th power amplifier, the output terminal of described the 4th broadband filter connects described multifrequency emitting antenna by cable, and described the 4th narrow band filter is connected between the input end of the output terminal of described the 5th power amplifier and described the 6th power amplifier.
8. multifrequency satellite signal forwarding unit according to claim 3, its feature be, described forwarding main frame also comprises:
The power interface that is used for the incoming transport civil power;
Be connected to described power interface, described the first low noise amplification module, attenuation module and the second low noise amplification module, and for electric main being converted to direct current and being the power module that described the first low noise amplification module, attenuation module and the second low noise are amplified module for power supply.
9. multifrequency satellite signal forwarding unit according to claim 8, is characterized in that, described shell comprises front panel and rear panel, is provided with signal input interface, signal output interface on described front panel and is used for regulating the adjusting button that gains; Described power interface is arranged on described rear panel.
10. multifrequency satellite signal forwarding unit according to claim 9, its feature be, described signal input interface, signal output interface are the N-type interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702595 CN202975327U (en) | 2012-12-18 | 2012-12-18 | Multi-frequency satellite signal forwarding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702595 CN202975327U (en) | 2012-12-18 | 2012-12-18 | Multi-frequency satellite signal forwarding equipment |
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| CN202975327U true CN202975327U (en) | 2013-06-05 |
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| CN 201220702595 Expired - Fee Related CN202975327U (en) | 2012-12-18 | 2012-12-18 | Multi-frequency satellite signal forwarding equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065408A (en) * | 2014-06-18 | 2014-09-24 | 重庆三峡学院 | Satellite signal repeater |
| CN104219010A (en) * | 2014-09-19 | 2014-12-17 | 上海市计量测试技术研究院 | Anechoic chamber satellite signal coverage device |
| CN105738923A (en) * | 2016-02-16 | 2016-07-06 | 铁道第三勘察设计院集团有限公司 | Measurement type global navigation satellite system (GNSS) receiver indoor electrification examination method |
| CN109328440A (en) * | 2016-04-05 | 2019-02-12 | 威尔逊电子有限责任公司 | Narrow band signal for network protection detects |
| CN109444918A (en) * | 2018-10-24 | 2019-03-08 | 深圳大学 | Satellite-signal orients forwarding device |
| CN110581713A (en) * | 2014-05-16 | 2019-12-17 | 高通股份有限公司 | Radio Frequency (RF) front end with multiple low noise amplifier modules |
| CN111308505A (en) * | 2019-02-13 | 2020-06-19 | 深圳华天信通科技有限公司 | Satellite signal forwarding system and method |
-
2012
- 2012-12-18 CN CN 201220702595 patent/CN202975327U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581713A (en) * | 2014-05-16 | 2019-12-17 | 高通股份有限公司 | Radio Frequency (RF) front end with multiple low noise amplifier modules |
| CN110581713B (en) * | 2014-05-16 | 2022-01-28 | 高通股份有限公司 | Radio Frequency (RF) front end with multiple low noise amplifier modules |
| CN104065408A (en) * | 2014-06-18 | 2014-09-24 | 重庆三峡学院 | Satellite signal repeater |
| CN104219010A (en) * | 2014-09-19 | 2014-12-17 | 上海市计量测试技术研究院 | Anechoic chamber satellite signal coverage device |
| CN105738923A (en) * | 2016-02-16 | 2016-07-06 | 铁道第三勘察设计院集团有限公司 | Measurement type global navigation satellite system (GNSS) receiver indoor electrification examination method |
| CN109328440A (en) * | 2016-04-05 | 2019-02-12 | 威尔逊电子有限责任公司 | Narrow band signal for network protection detects |
| CN109444918A (en) * | 2018-10-24 | 2019-03-08 | 深圳大学 | Satellite-signal orients forwarding device |
| CN111308505A (en) * | 2019-02-13 | 2020-06-19 | 深圳华天信通科技有限公司 | Satellite signal forwarding system and method |
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Granted publication date: 20130605 Termination date: 20151218 |
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