CN203786297U - Satellite navigation dual-system radio-frequency receiving module - Google Patents
Satellite navigation dual-system radio-frequency receiving module Download PDFInfo
- Publication number
- CN203786297U CN203786297U CN201420027643.0U CN201420027643U CN203786297U CN 203786297 U CN203786297 U CN 203786297U CN 201420027643 U CN201420027643 U CN 201420027643U CN 203786297 U CN203786297 U CN 203786297U
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- frequency
- integrated circuit
- radio
- monolithic integrated
- circuit chips
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- 230000009977 dual effect Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The utility model discloses a satellite navigation dual-system radio-frequency receiving module. The dual-system radio-frequency receiving module comprises a shielding casing and a radio-frequency printed circuit board. The radio-frequency printed circuit board includes two monolithic integrated circuit chips. The two monolithic integrated circuit chips are connected with power divider through an active multi-frequency antenna. The power divider is separately connected with the two monolithic integrated circuit chips. The two monolithic integrated circuit chips are connected with two radio-frequency amplifiers through two medium-frequency output circuits, respectively. The two radio-frequency amplifiers respectively output at frequency points of GPS L1 and BD2B3. The two monolithic integrated circuit chips are connected with medium-frequency input circuits, respectively. According to the utility model, the radio-frequency receiving module helps to solve the technical problems of the conventional radio-frequency receiving modules, and has the advantages of good radio frequency index, simple installation, small size and high versatility, achieving the best standard in the country; and the problems of the requirements on high standard radio-frequency receiving modules of the satellite navigation receivers are solved.
Description
Technical field
The utility model belongs to satellite navigation and communication technical field, relates to a kind of satellite navigation dual system Receiver Module.
Background technology
Information war, electronic countermeasure research are military satellite navigation and an important aspect of communication technical field.Big Dipper Receiver Module is applicable to the information war under complex environment, for the radio frequency part of Beidou receiver.Mostly existing Big Dipper Receiver Module is single-frequency or the larger multifrequency module of volume, also do not accomplish to switch inside and outside reference frequency according to outside input reference frequency Potential adapting, and Performance Ratio is poor, is difficult to use in the information war under complex environment.
Utility model content
The purpose of this utility model is to provide a kind of satellite navigation dual system Receiver Module, the utility model mainly completes the work such as the down coversion, amplification, filtering of BD2B3/GPS L1/GLONASS L1 (also can specified satellite frequency) radiofrequency signal, and output two-way 46MHz intermediate frequency broadband signal He Yi road 62MHz clock signal is to digital base band processor unit
The purpose of this utility model realizes by following technical proposals.
A kind of satellite navigation dual system Receiver Module, this dual system Receiver Module is comprised of shielding case, radio circuit printed board two parts, described radio circuit printed board comprises two monolithic integrated circuit chips, two monolithic integrated circuit chips connect power splitter by active multifrequency antenna, power splitter connects respectively two monolithic integrated circuit chips, two monolithic integrated circuit chips connect two radio frequency amplifier by two intermediate frequency output circuits respectively, and two radio frequency amplifier are exported respectively GPS L1 and BD2B3 frequency; Described two monolithic integrated circuit chips are connected with respectively radio frequency input circuit.
Further, described active multifrequency antenna and module provide DC+5V power supply by integrated regulated power supply LDO.
Further, described two monolithic integrated circuit chips adopt monolithic integrated circuit chip SFp900MC.
Further, described two monolithic integrated circuit chips provide the clock of 10MHz to input by VC-TCXO oscillator, the clock signal of output 62MHz.
The utility model is applicable to the information war under complex environment, radio frequency part for Beidou receiver, mainly complete the work such as down coversion, amplification, filtering of BD2B3/GPS L1 (also can specified satellite frequency) radiofrequency signal, finally export two-way 46MHz intermediate frequency broadband signal He Yi road 62MHz clock signal to digital base band processor unit.
The utility model is accomplished same module the inside by the complicated radiofrequency signal processing capacity of the Big Dipper and two kinds of satellite navigation signals of GPS, can switch inside and outside reference frequency according to outside input reference frequency Potential adapting, when for external reference, 62MHz clock with reference to output also switches thereupon, low for conventional Receiver Module receiving sensitivity, noise figure is larger, to larger radio-frequency input signals, cannot carry out automatic gain control (AGC), and take poor etc. the problem of the large and circuit compatibility of circuit space, this Receiver Module is optimized design and fabrication to it emphatically, the problems referred to above have not only been solved completely, and accomplished that RF index is good, install simple and easy, small volume, universal strong, reached domestically leading level, efficiently solve the needs of problems of satellite navigation receiver to high standard Receiver Module.
Accompanying drawing explanation
Fig. 1 is the utility model scheme of installation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 1, the utility model is comprised of shielding case, radio circuit printed board two parts.Radio circuit printed board provides carrier for the radiofrequency signal of whole module and the normal operation of other sophisticated signals, and also for being connected with the installation of external circuit, metal shielding is used for guaranteeing that internal circuit is not subject to electromagnetic interference (EMI), and guarantees that circuit structure is without prejudice.
Radio circuit printed board comprises two monolithic integrated circuit chips, two monolithic integrated circuit chips connect power splitter by active multifrequency antenna, power splitter connects respectively two monolithic integrated circuit chips, two monolithic integrated circuit chips connect two radio frequency amplifier by two intermediate frequency output circuits respectively, and two radio frequency amplifier are exported respectively GPS L1 and BD2B3 frequency.Described two monolithic integrated circuit chips are connected with respectively radio frequency input circuit.This module can external low noise amplifier, in conjunction with two radio frequency input circuits of this module, carrys out practical function.
Wherein, active multifrequency antenna and module provide DC+5V power supply by integrated regulated power supply LDO.Two monolithic integrated circuit chips adopt monolithic integrated circuit chip SFp900MC.Two monolithic integrated circuit chips provide the clock of 10MHz to input by VC-TCXO oscillator, the clock signal of output 62MHz.
The circuit structure of the utility model radio circuit printed board, the monolithic integrated circuit chip SFp900MC that its master chip adopts 0.35 μ m SiGe BiCMOS technique to manufacture, input radio frequency adopts with Power Splitter the Surface Mount process element device that model is SP-2G1+, output intermediate frequency adopts with Buffer the Surface Mount process element device that high speed rail to rail model is MAX4214, module is configured to respectively BD2B3 as required, GPS L1 (or specifying frequency) frequency, external LNA again, in conjunction with radio frequency SAW filter, intermediate frequency SAW filter, high stability crystal oscillator composition module is with practical function.Two radio frequency chips share same crystal oscillator source, realize clock synchronous.Module-external power supply is DC+3.3V, DC+5V, and the former is for the module electricity consumption of normally working, and the latter powers to active antenna through rf input port feed.
Above-mentioned metal shielding adopts the aluminum metal material of the heavy process of tin in surface, and its surface is through special processing, has anti-external electromagnetic interference, high-low temperature resistant, the characteristic such as corrosion-resistant, and elegant in appearance, good without burr, conduction, heat conductivility, surface-brightening.
1. Receiver Module circuit implementation procedure:
The utility model circuit implementation procedure: the weak satellite signal receiving from sky, by active antenna, receive after amplification, input to satellite navigation dual system radio-frequency module, through radio frequency chip SFp900MC, carry out low noise amplification, rf filtering, down coversion, the processing such as intermediate frequency amplification, intermediate frequency filtering, the 46MHz difference form signal of output, through Buffer chip MAX4214, carry out buffered again, and difference form is become to single-ended format, last signal enters digital baseband part and carries out subsequent treatment.
The utility model satellite navigation two system radio frequency reception assembly PCB adopt FR-4 sheet material cheaply, are easy to processing and are conducive to control cost.Module main devices adopts the integrated circuit of high reliability, has increased the stability of product.Module adopts each passage, each unit all separate, and signal is not crosstalked mutually, makes performance more excellent, reduces mutual risk of interferences.
2. Receiver Module architectural feature
The welding of the utility model internal component and outside installation, all adopt surface mount process (SMD) module surrounding to adopt metallization stamp half hole technique, and the physical dimension of its 20.32 * 38.1mm * 4.5mm, is extremely conducive to the miniaturization of satellite navigation receiver.
The utility model metal shielding surface is printed on the LOGO of company, name of product model, product coding.
Above-described embodiment has provided a narrow example the utility model has been made to detailed description; can not assert that embodiment of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; all any simple modification of doing according to the utility model Spirit Essence and equivalent structure transformation or modification, all belong to the definite protection domain of claims that the utility model is submitted to.
Claims (4)
1. a satellite navigation dual system Receiver Module, it is characterized in that, this dual system Receiver Module is comprised of shielding case, radio circuit printed board two parts, described radio circuit printed board comprises two monolithic integrated circuit chips, two monolithic integrated circuit chips connect power splitter by active multifrequency antenna, power splitter connects respectively two monolithic integrated circuit chips, two monolithic integrated circuit chips connect two radio frequency amplifier by two intermediate frequency output circuits respectively, and two radio frequency amplifier are exported respectively GPS L1 and BD2B3 frequency; Described two monolithic integrated circuit chips are connected with respectively radio frequency input circuit.
2. satellite navigation dual system Receiver Module according to claim 1, is characterized in that, described active multifrequency antenna and module provide DC+5V power supply by integrated regulated power supply LDO.
3. satellite navigation dual system Receiver Module according to claim 1, is characterized in that, described two monolithic integrated circuit chips adopt monolithic integrated circuit chip SFp900MC.
4. satellite navigation dual system Receiver Module according to claim 1, is characterized in that, described two monolithic integrated circuit chips provide the clock of 10MHz to input by VC-TCXO oscillator, the clock signal of output 62MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027643.0U CN203786297U (en) | 2014-01-16 | 2014-01-16 | Satellite navigation dual-system radio-frequency receiving module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027643.0U CN203786297U (en) | 2014-01-16 | 2014-01-16 | Satellite navigation dual-system radio-frequency receiving module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203786297U true CN203786297U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420027643.0U Expired - Lifetime CN203786297U (en) | 2014-01-16 | 2014-01-16 | Satellite navigation dual-system radio-frequency receiving module |
Country Status (1)
| Country | Link |
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| CN (1) | CN203786297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208826A (en) * | 2019-05-29 | 2019-09-06 | 哈尔滨工程大学 | A kind of digital satellite smart antenna of multimode multi-frequency |
-
2014
- 2014-01-16 CN CN201420027643.0U patent/CN203786297U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208826A (en) * | 2019-05-29 | 2019-09-06 | 哈尔滨工程大学 | A kind of digital satellite smart antenna of multimode multi-frequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710100, Shaanxi, Xi'an Aerospace base, Shenzhou four Road International Plaza incubator C block 301 Patentee after: XI'AN XIDE ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. Address before: 710100, Shaanxi, Xi'an Aerospace base, Shenzhou four Road International Plaza incubator C block 301 Patentee before: XI'AN XIDE ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A radio frequency receiving module for satellite navigation dual system Effective date of registration: 20210713 Granted publication date: 20140820 Pledgee: Xi'an spaceflight base financing Company limited by guarantee Pledgor: XI'AN XIDE ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2021980006074 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220728 Granted publication date: 20140820 Pledgee: Xi'an spaceflight base financing Company limited by guarantee Pledgor: XI'AN XIDE ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2021980006074 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |
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| CX01 | Expiry of patent term |