CN202872779U - Wcdma repeater module - Google Patents
Wcdma repeater module Download PDFInfo
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- CN202872779U CN202872779U CN 201220558156 CN201220558156U CN202872779U CN 202872779 U CN202872779 U CN 202872779U CN 201220558156 CN201220558156 CN 201220558156 CN 201220558156 U CN201220558156 U CN 201220558156U CN 202872779 U CN202872779 U CN 202872779U
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- wcdma
- link
- repeater
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Abstract
The utility model provides a WCDMA repeater module. The WCDMA repeater module is an integral module which has an up link, a down link, and a control part integrated on a same PCB. The up link comprises an up low-noise amplification module, an up frequency selection module, and an up power amplification module, which are connected sequentially. The down link comprises a down low-noise amplification module, a down frequency selection module, and a down final stage amplification module, which are connected sequentially. The control part comprises a control circuit, and an up frequency synthesizer and a down frequency synthesizer which are connected with the control circuit. The up frequency synthesizer is connected with the up link, and the down frequency synthesizer is connected with the down link. The WCDMA repeater module has the up low-noise module, the down low-noise module, the up frequency selection module, the down frequency selection module, and the up power amplification module integrated on the same PCB so that the WCDMA repeater module is compact in structure and small in size, and down output can be externally connected with a power amplification module based on real needs.
Description
[technical field]
The utility model relates to the communications field, relates in particular to WCDMA repeater module.
[background technology]
In mobile communications network, wireless discharging-directly station has the low and rapid characteristics in increase coverage territory of cost of investment, is an indispensable part in radio network optimization and the covering.
With reference to figure 1, traditional repeater module integration two dielectric duplexers, up-downgoing radio frequency link and monitoring units.Wherein, up radio frequency link comprises up LNA part (LNA), up frequency-selecting part, up power amplifier part (PA) successively, and the downlink radio frequency link comprises descending LNA part (LNA), down frequency selection part, descending power amplifier part (PA) successively.The up-downgoing radio frequency link is symmetrical arranged, and distributing according to the workpiece in the cavity is divided into up and down individual screen chamber with cavity, and its repeater cavity is one-body molded.
This traditional repeater module machine volume is large, and cost is high, universal performance is not enough, therefore, needs a kind of improved plan badly.
[utility model content]
For overcoming defects, the utility model provides a kind of improved WCDMA repeater module, the integrated module of this WCDMA repeater module, integrated up link, down link and control section, wherein: described up link comprises up low noise amplification module, up frequency-selecting module, the ascending power amplification module that connects in turn; Described down link comprises descending low noise amplification module, down frequency selection module, the descending final stage amplification module that connects in turn; The upper line frequency that described control section comprises control circuit, be connected with control circuit is combined and downlink frequency is combined, and described upper line frequency is combined and is connected with described up link, and described downlink frequency is comprehensive to be connected with described down link.
In a preferred version of the present utility model, described up link, down link and control section are integrated into the same circuit board.
In a preferred version of the present utility model, described circuit board is two laminates, and wherein a laminate is the microwave panel, and another laminate is ground plate.
In a preferred version of the present utility model, described control section also comprises power transfer module.
In a preferred version of the present utility model, described up low noise amplification module or descending low noise amplification module comprise low noise small-signal amplifier tube, radio frequency Surface Acoustic Wave Filter, numerical-control attenuator, amplifier tube, ∏ shape attenuator and the isolator that connects in turn.
In a preferred version of the present utility model, described up frequency-selecting module or down frequency selection module comprise mixer tube, the first passive filter, intermediate frequency amplifier, intermediate frequency sound table, power tube and the second passive filter that connects in turn.
In a preferred version of the present utility model, described ascending power amplification module comprises mixer tube, the first radio-frequency filter, the first amplifier tube, the second radio-frequency filter, numerical-control attenuator, the second amplifier tube, power tube and the isolator that connects in turn.
In a preferred version of the present utility model, described descending final stage amplification module comprises mixer tube, first medium filter, amplifier tube, second medium filter, the 3rd dielectric filter, the isolator that connects in turn.
In a preferred version of the present utility model, described upper line frequency is combined or downlink frequency is combined frequency synthesizer, loop filter and the voltage controlled oscillator that comprises in turn connection.
In a preferred version of the present utility model, described control circuit comprises: single-chip microcomputer; And the memory that is connected with single-chip microcomputer, communication interface, detector amplifier.
The WCDMA repeater module that the utility model preferred embodiment provides is integrated up low noise module, descending low noise module, up frequency-selecting module, down frequency selection module and up power amplifier module on same PCB, compact conformation, volume is little, and descends according to the actual requirements external power amplifier module of line output.
[description of drawings]
Fig. 1 is the schematic block diagram of traditional repeater module;
The schematic block diagram of the WCDMA repeater module that Fig. 2 provides for the utility model;
The general frame of the WCDMA repeater module that Fig. 3 provides for the utility model;
The schematic diagram of the up low noise amplification module of the WCDMA repeater module that Fig. 4 provides for the utility model;
The schematic diagram of the up frequency-selecting mould of the WCDMA repeater module that Fig. 5 provides for the utility model;
The schematic diagram of the ascending power amplification module of the WCDMA repeater module that Fig. 6 provides for the utility model;
The schematic diagram of the descending low noise amplification module of the WCDMA repeater module that Fig. 7 provides for the utility model;
The schematic diagram of the descending final stage amplification module of the WCDMA repeater module that Fig. 8 provides for the utility model;
The schematic diagram of the control circuit part of the WCDMA repeater module that Fig. 9 provides for the utility model;
The schematic diagram that the up and down line frequency of the WCDMA repeater module that Figure 10 provides for the utility model is combined.
[embodiment]
The utility model relates to the repeater of radio communication, especially high performance WCDMA repeater.
With reference to figure 2, the integrated module of repeater module that the utility model provides has been integrated up-downgoing small-signal low noise amplification module, up-downgoing frequency-selecting module, ascending power amplification module and descending final stage amplification module.Wherein, up low noise amplification module, up frequency-selecting module, ascending power amplification module connect in turn, and descending small-signal low noise amplification module, down frequency selection module, descending final stage amplification module connect in turn.Different local oscillation signals are adopted respectively in up-downgoing, select the frequency band that needs by flexible use different IF sound table.
With reference to figure 3, the repeater module that the utility model one embodiment provides comprises up low noise amplification module 1, up frequency-selecting module 2, ascending power amplification module 3, descending low noise amplification module 4, down frequency selection module 5, descending final stage amplification module 6, control circuit part (MCU) 7, up local vibration source 8, descending local vibration source 9, power supply and DC-DC modular converter 10.The below will describe more specifically to each functional module.
With reference to figure 4, in this up low noise amplification module, low noise small-signal amplifier tube 1.01 is under the condition of work of 5V/120mA/2.0GHz, and its typical performance index are as follows: noise factor 0.8dB, gain 24.5dB, the S11 of 25dB and the OIP3 of 39dBm.Low noise small-signal amplifier tube 1.02 typical performance index are as follows: gain 18.2dB, and P1dB is 21dBm, OIP 3 is 35dBm.Signal beyond the radio frequency Surface Acoustic Wave Filter 1.03 filtering frequency ranges.Numerical-control attenuator 1.04 can be realized the control range of 31dB, and the control precision in gamut is less than 1.5dB.Amplifier tube 1.05 typical performance index are as follows: gaining is 20dB, the P1dB of 22dBm and the OIP3 of 36dBm.∏ shape attenuator 1.06 can be realized the voltage-controlled attenuation range of 30dB, and obtains the IIP3 of 43dBm.Intermodulation product and local oscillator leakage after the isolator 1.07 isolation mixing, replacing the filtering purpose with isolator is the passband fluctuation that reduces whole link.
With reference to figure 5, in this up frequency-selecting part, mixer tube 2.01 typical performance index are as follows: bandwidth 1.7-2.2GHz, and Insertion Loss 8.8dB, IP3 representative value are 35dBm, L-R isolation 30dB, L-I isolation are 22dB.LC filter (passive filter) 2.02 and 2.06 leaches the noise signal beyond the intermediate frequency.IF amplifier 2.03 typical performance index: gain 20dB, P1dB is that 20.8dBm and OIP3 are 42.8dBm.Intermediate frequency sound table 2.04 is united use with the local oscillator chip, by software PLL value and local oscillator controlling value is set, and realizes choosing band function.Power tube 2.05 typical performance index are: at 70MHz, and gain 29dB, P1dB is that 20.8dBm and OIP3 are 40dBm.
With reference to figure 6, in this ascending power amplification module, mixer tube 3.01 typical performance index are as follows: bandwidth 0.7-2.0GHz, and Insertion Loss 9dB, IIP3 representative value are 17dBm, L-R isolation 24dB, L-I isolation are 17dB.Radio-frequency filter 3.02 and 3.04 leaches local oscillator leakage and the intermodulation product after the mixing.Amplifier tube 3.03 is as the 7th grade of amplification.Numerical-control attenuator 3.05 is united use with numerical-control attenuator 1.04, can realize the numerical control decay control range of 31dB, and the control precision in gamut is less than 1.5dB.Amplifier tube 3.06 is 18.7dB as the promotion level of power amplifier in its gain of 1950MHz, and P1dB is that 20dBm and OIP3 are 39dBm.Power tube 3.07 in 2140MHz typical case performance index is: gain 23dB, P1dB is that 28dBm and OIP3 are 47dBm.Intermodulation product and local oscillator leakage after the isolator 3.08 isolation mixing.Power detection 3.09 is AD8314, realizes power detection.ALC control circuit 3.10 is realized circuit control.Implementation is simple in structure in being somebody's turn to do, and cost is low.
With reference to figure 7, in this descending low noise amplification module, coupler 4.04 is a kind of detection tube, realizes that descending input power detects.Amplifier tube 4.07 is characterized as in 2140MHz typical case performance: gain 13.5dB, P1dB is that 25dBm and OIP3 are 42dBm.Other devices and upper low noise amplification module Primary Component type selecting are same or similar.
Basically, the down frequency selection module is except mixer tube, and is consistent with up frequency-selecting/choosing band Primary Component type selecting.Mixer tube typical case performance index are as follows, bandwidth 1.7-2.4GHz, and Insertion Loss 9dB, IIP3 representative value are 34dBm, the local oscillator driving power is low :-2 arrive+4dBm.
With reference to figure 8, comprise mixer tube 5.01, dielectric filter 5.02,5.04 and 5.05 in this down frequency selection module, to reduce the local oscillator leakage of module.The descending gain of amplifier tube 5.03 compensation.Isolator 5.06, intermodulation product and local oscillator leakage after the isolation mixing.
With reference to figure 9, control circuit part comprises that mainly built-in single-chip microcomputer, external memory, single-chip microcomputer are to communication interface and these several parts of detector amplifier of module-external environment.Up numerical control decay and descending numerical control decay can adjusting module gain.Temperature-compensating is by the current temperature of software detection, adjust the numerical control attenuation according to the variation of Current Temperatures, thereby reach the purpose of adjusting gain, to the ambient temperatures of+55 degree, guarantee up gain (descending gain is in error range of ± 2dB) in the error range of ± 3dB at-25 degree.Up power output detection detects effectively with descending input, power output, and whether monitoring module works.Module has temperature detecting function, in real time the temperature of detection module.Up mains switch can be closed link (such as link because of the self-excitation interference base station) when radio frequency link is unusual.
With reference to Figure 10, frequently combine as local vibration source, adopt respectively different local oscillator chips to provide the LO signal for up link and down link.Up local oscillator chip has adopted PLL (phase-locked loop) and VCO(voltage controlled oscillator integrated), its typical performance index: fractional frequency division, the 2.8V-3.2V power supply, inner integrated VCO hangs down makes an uproar mutually.Loop filter is low pass filter, filtering clutter and high-frequency signal.
Modular power source power supply is 6V, power supply DC-DC(6V-5V), have good reliability, the characteristics such as ripple is little, and spurious signal is little.
When realizing, above-mentioned modules is integrated into same PCB, and this PCB is two laminates, and its size is 168.7mm * 118mm * 0.8mm.Design sheet material adopts FR-4, ground floor (top layer) microwave panel, and copper thickness is 0.035mm, is mainly used in the main wiring of radio frequency wiring and digital circuit; The second layer (bottom) is ground plate, and copper thickness is 0.035mm, is mainly used in the wiring of power line and part digital circuit.In order to prevent that circuit from forming positive feedback, prevent that digital circuit is subject to mutually crosstalking of the interference of radiofrequency signal and radiofrequency signal etc. that by the space therefore, each pcb board is isolated circuit with the cavity of individual screen.But the end face pcb board is divided into the chamber of 9 individual screen aspect layout connects up: first cavity is up low noise amplification; Second cavity is up frequency-selecting; The 3rd cavity ascending power amplifies; The 4th cavity is descending low noise amplification; The 5th cavity is down frequency selection; The 6th cavity is that descending final stage is amplified; The 7th cavity is that upper line frequency is combined; The 8th cavity is monitor portion; The 9th cavity is that downlink frequency is combined.
Box body structure part: PCB is fixed in the aluminum box body by screw, totally 4 radiofrequency signal input/output interfaces, the six pin ISP programming slot of 485 interfaces, single-chip microcomputer and control potentiometer knob, up power amplifier alarm and power supply indicator are in the upper shed of aluminum box body cover plate.
For the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a WCDMA repeater module is characterized in that, the integrated module of described repeater module, and integrated up link, down link and control section, wherein:
Described up link comprises up low noise amplification module, up frequency-selecting module, the ascending power amplification module that connects in turn;
Described down link comprises descending low noise amplification module, down frequency selection module, the descending final stage amplification module that connects in turn;
The upper line frequency that described control section comprises control circuit, be connected with control circuit is combined and downlink frequency is combined, and described upper line frequency is combined and is connected with described up link, and described downlink frequency is comprehensive to be connected with described down link.
2. WCDMA as claimed in claim 1 repeater module is characterized in that described up link, down link and control section are integrated into the same circuit board.
3. WCDMA as claimed in claim 2 repeater module is characterized in that described circuit board is two laminates, and wherein a laminate is the microwave panel, and another laminate is ground plate.
4. WCDMA as claimed in claim 1 repeater module is characterized in that described control section also comprises power transfer module.
5. WCDMA as claimed in claim 1 repeater module, it is characterized in that described up low noise amplification module or descending low noise amplification module comprise low noise small-signal amplifier tube, radio frequency Surface Acoustic Wave Filter, numerical-control attenuator, amplifier tube, ∏ shape attenuator and the isolator that connects in turn.
6. WCDMA as claimed in claim 1 repeater module, it is characterized in that described up frequency-selecting module or down frequency selection module comprise mixer tube, the first passive filter, intermediate frequency amplifier, intermediate frequency sound table, power tube and the second passive filter that connects in turn.
7. WCDMA as claimed in claim 1 repeater module, it is characterized in that described ascending power amplification module comprises mixer tube, the first radio-frequency filter, the first amplifier tube, the second radio-frequency filter, numerical-control attenuator, the second amplifier tube, power tube and the isolator that connects in turn.
8. WCDMA as claimed in claim 1 repeater module is characterized in that, described descending final stage amplification module comprises mixer tube, first medium filter, amplifier tube, second medium filter, the 3rd dielectric filter, the isolator that connects in turn.
9. WCDMA as claimed in claim 1 repeater module is characterized in that, described upper line frequency is combined or downlink frequency is combined and comprised frequency synthesizer, loop filter and the voltage controlled oscillator that connects in turn.
10. such as the described WCDMA of any one in the claim 1 to 9 repeater module, it is characterized in that described control circuit comprises:
Single-chip microcomputer; And
The memory that is connected with single-chip microcomputer, communication interface, detector amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558156 CN202872779U (en) | 2012-10-29 | 2012-10-29 | Wcdma repeater module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558156 CN202872779U (en) | 2012-10-29 | 2012-10-29 | Wcdma repeater module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872779U true CN202872779U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220558156 Expired - Fee Related CN202872779U (en) | 2012-10-29 | 2012-10-29 | Wcdma repeater module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114449662A (en) * | 2021-12-31 | 2022-05-06 | 重庆智铸华信科技有限公司 | Frequency conversion processing circuit and access device |
-
2012
- 2012-10-29 CN CN 201220558156 patent/CN202872779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114449662A (en) * | 2021-12-31 | 2022-05-06 | 重庆智铸华信科技有限公司 | Frequency conversion processing circuit and access device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN GUOREN COMMUNICATION CO., LTD. Free format text: FORMER OWNER: GUOREN COMMUNICATION CO LTD., SHENZHEN Effective date: 20150730 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150730 Address after: 518000 Guangdong city of Shenzhen province Nanshan District high tech park of science and technology in three Chinese central road building A building room 13F1303 Patentee after: Shenzhen compatriots limited company that communicates by letter Address before: 518000 Guangdong city of Shenzhen province Nanshan District high tech Park District in three road of Chinese science and technology building B building 3F and building A 15F Patentee before: Guoren Communication Co., Ltd., Shenzhen |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20191029 |