CN202488455U - Circuit of repeater cover end - Google Patents
Circuit of repeater cover end Download PDFInfo
- Publication number
- CN202488455U CN202488455U CN2012201168190U CN201220116819U CN202488455U CN 202488455 U CN202488455 U CN 202488455U CN 2012201168190 U CN2012201168190 U CN 2012201168190U CN 201220116819 U CN201220116819 U CN 201220116819U CN 202488455 U CN202488455 U CN 202488455U
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- CN
- China
- Prior art keywords
- link
- circuit
- wcdma
- power amplifier
- dcs1800
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a circuit of a repeater cover end. The circuit comprises a wideband code division multiple access (WCDMA) downlink power amplification link (1), a data communication system (DCS) 1800 downlink power amplification link (2), a combiner (2), a WCDMA uplink low-noise link (3), a DCS 1800 uplink low-noise link (4) and a monitoring link (5), wherein the WCDMA downlink power amplification link (1) and the DCS 1800 downlink power amplification link (2) are connected with a power divider; the combiner (6) is connected with the WCDMA downlink power amplification link (1) and the DCS 1800 downlink power amplification link (2); the WCDMA uplink low-noise link (3) and the DCS 1800 uplink low-noise link (4) are respectively connected with the combiner (6); and the monitoring link (5) is respectively connected with the WCDMA downlink power amplification link (1), the WCDMA uplink low-noise link (3), the DCS 1800 downlink power amplification link (2) and the DCS 1800 uplink low-noise link (4). The circuit is arranged on a circuit board which comprises six cavities capable of being shielded independently; and the six cavities are respectively used for arranging the WCDMA downlink power amplification link (1), the DCS 1800 uplink low-noise link (4), the WCDMA uplink low-noise link (3), the DCS 1800 downlink power amplification link (2), a single chip digit circuit and temperature detection circuit and the combiner (6). The circuit can simultaneously support DCS1800 and WCDMA modes in one radio frequency printed circuit board (PCB).
Description
[technical field]
The utility model relates to the repeater, particularly, relates to the circuit of a kind of repeater capped end.
[background technology]
Traditional DCS1800 and WCDMA indoor distributed system are two independent systems, and there are oneself independently electric power system, feeder line, antenna, terminal equipment etc. in each system.This kind scheme has higher equipment cost and management cost.
Fast development along with 3G (WCDMA) network of UNICOM; To the WCDMA networking require increasingly high; The simple quantity that increases the base station that relies on can make that network construction cost uprises, and relies on the high-power indoor distributed system of doing, and interference between can increase equipment and lifting upward signal are through closing road low noise afterwards; Meanwhile, take into account the construction and the maintenance of its 2G (DCS1800) network again.So the signal covering system of developing a kind of dual network has become a kind of development trend of necessity.
[summary of the invention]
The utility model provides purpose to provide a kind of circuit that is used for the support dual network of repeater capped end.This circuit comprises: the descending power amplifier link of the WCDMA that is connected with power splitter respectively, the descending power amplifier link of DCS1800; With the descending power amplifier link of said WCDMA, the link-attached mixer of the descending power amplifier of DCS1800; The up low noise link of the WCDMA that is connected with said mixer respectively, the up low noise link of DCS1800; Respectively with the descending power amplifier link of said WCDMA, the up low noise link of WCDMA, the descending power amplifier link of DCS1800 and the link-attached monitoring link of DCS 1800 up low noises.
As a kind of preferred version, the final stage power amplifier pipe of the descending power amplifier link of said WCDMA is the power amplifier of AB class, and its operating frequency is that its operating frequency range is 0.7GHz～2.2GHz.
As a kind of preferred version, the operating frequency range of the descending power amplifier link of said WCDMA is 2130MHz～2145MHz, comprises power output test section, numerical control gain decay part, ALC automated power level control section and the bad state-detection part of power amplifier.
As a kind of preferred version, the operating frequency range of the descending power amplifier link of said DCS1800 is 1830MHz～1850MHz, comprises power output test section, numerical control gain decay part, ALC automated power level control section and the bad state-detection part of power amplifier.
As a kind of preferred version, the operating frequency range of the up low noise link of said WCDMA is 1940MHz～1955MHz, comprises numerical control gain decay part and ALC automated power level control section.
As a kind of preferred version, the operating frequency range of the up low noise link of said DCS1800 is 1735MHz～1755MHz, comprises numerical control gain decay part and ALC automated power level control section.
As a kind of preferred version, said monitoring link comprises monitoring part, control section and temperature detection part.
As a kind of preferred version, said monitoring link comprises that switch is used to control descending power amplifier link of said WCDMA and the descending power amplifier link of DCS1800.
As a kind of preferred version; Said circuit is arranged at circuit board; But said circuit board comprises the cavity of six individual screen, and said six cavitys are respectively applied for circuit, single-chip microcomputer digital circuit and temperature sensing circuit, the circuit of mixer of the descending power amplifier link of circuit, DCS1800 of the up low noise link of circuit, WCDMA of the up low noise link of circuit, DCS1800 of the descending power amplifier link of Installation of W CDMA.
As a kind of preferred version, said circuit board comprises top layer and bottom; Said top layer is the microwave panel, is used for the wiring of radio frequency wiring and digital circuit; Said bottom is a ground plate.
Implement the utility model; The low noise of power amplification and upward signal that can realize the downstream signal of DCS1800 and two kinds of standards of WCDMA, different frequency in a radio frequency PCB (printed circuit board (PCB)) lining simultaneously amplifies, and each amplifies link, and this has independently control and testing circuit.
[description of drawings]
Fig. 1 is the circuit theory diagrams of the repeater capped end that provides of the utility model.
[embodiment]
With reference to figure 1; The circuit of the repeater capped end that this instance provides comprises 6 key components, is respectively: monitoring link 5, multifrequency media mixer 6 that the up low noise link of the up low noise link of the descending power amplifier link of the descending power amplifier link of WCDMA 1, DCS1800 2, WCDMA 3, DCS1800 4, ATMEL16 form.Wherein, the descending power amplifier link of WCDMA 1, the descending power amplifier link 2 of DCS1800 are connected with power splitter, multifrequency media mixer 6 respectively; The up low noise link of WCDMA 3, the up low noise link 4 of DCS1800 are connected with said multifrequency media mixer 6 respectively; Monitoring link 5 is connected with the up low noise link 4 of DCS1800 with the up low noise link of the descending power amplifier link of said WCDMA 1, WCDMA 3, the descending power amplifier link 2 of DCS1800 respectively.
When the design overall scheme, to set the peak power output of retransmitting the end downstream signal and be 23dBm (being 200mW), the downstream signal gain is 30dB; The peak power output of upward signal is-6dBm that the upward signal gain is 40dB.If signal power surpasses this rated value, the ALC of its each link (automatic electric-level control) circuit then begins to start to control.Next, be further described with regard to various piece.
1.1:WCDMA descending power amplifier link
The final stage power amplifier pipe model of the descending power amplifier link of WCDMA is SPB2026ZDS, is a AB class 2W power amplifier, and its operating frequency range is 0.7GHz～2.2GHz.This power tube is operated in AB class mode, because its power-efficient is higher more than 10% than 2WA class power tube.
The operating frequency range of the descending power amplifier link of WCDMA is: 2130MHz～2145MHz; Entire circuit comprises that power output detects; The numerical control gain decay, the control of ALC automated power level, four parts of bad state-detection of power amplifier; Power output retransmitting end is under the situation of 23dBm, and its electrical characteristics index all can meet industry standard.
1.2:DCS1800 descending power amplifier link
The design philosophy of the descending power amplifier link of DCS1800 is consistent with the descending power amplifier of WCDMA; The final stage power amplifier pipe model of the descending power amplifier link of DCS1800 also is SPB2026ZDS; Entire circuit comprises that power output detects; The numerical control gain decay, the control of ALC automated power level, four parts of bad state-detection of power amplifier.Operating frequency range is: 1830MHz～1850MHz.Power output retransmitting end is under the situation of 23dBm, and its electrical performance indexes all meets industry standard.
1.3::WCDMA up low noise link
Its operating frequency range of the up low noise link of WCDMA is 1940MHz～1955MHz.Entire circuit comprises the numerical control gain decay, ALC automated power level control two parts, the universal elements that all adopt compatriots to communicate by letter.
1.4:DCS1800 up low noise link
The operating frequency range of the up low noise link of DCS1800 is 1735MHz～1755MHz.Entire circuit comprises the numerical control gain decay, ALC automatic electric-level control two parts.The universal elements that the device of selecting for use all adopts compatriots to communicate by letter.
1.5:ATMEL16 monitoring
By MCU ATMEL16 form have the monitoring and the controlled function circuit, have the wiring board temperature detecting function simultaneously, can also control the switch of descending power amplifier of WCDMA and the descending power amplifier of DCS1800.Can carry out data with the external world through 485 buses exchanges.
1.6: multiplefrequency mixer
Multiplefrequency mixer is that a volume is little, the medium mixer that cost is low.
1.7:PCB layout and design
In this instance, PCB sizing 185mm*133mm*0.8mm is designed to two-ply; Sheet material adopts the RO4350B of Rogers, 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 a ground plate, and copper thickness is 0.035mm, is mainly used in the wiring of power line and part digital circuit.But whole pcb board is divided into the chamber of 6 individual screen aspect layout connects up: first cavity is the descending power amplifier of DCS1800; Second cavity is the up low noise cancellation circuit of DCS1800; The 3rd cavity is the up low noise cancellation circuit of WCDMA; The 4th cavity is the descending power amplifier of WCDMA; The 5th cavity is MCU single-chip microcomputer digital circuit, temperature sensing circuit; The 6th cavity is multifrequency media mixer circuit, adheres to specification with the up-downgoing isolation of guaranteeing the medium multiplefrequency mixer: >=40dB.Annex 4_DCS1800+WCDMA capping unit 200mW hardware PCBV1.1.PCBDOC is its detailed PCB design.
This wiring board design has comprised 4 radio frequency active links, and a monitoring link and a multifrequency media mixer have compact circuit designing thought.Preferably, strict unified standard exploitation such as external structure and interface makes things convenient for the multiplexing and standardization effort of using of product.Product is selected universal and low-cost device for use, has lower cost advantage.This product is a ultra-linear amplifier equipment, has automatic electric-level control, and output level is adjustable continuously, power detection, and power amplifier switch control, power amplifier is bad to be detected, temperature detection and carry out function such as gain compensation from the motion tracking variations in temperature.
For the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.
Claims (10)
1. the circuit of a repeater capped end is characterized in that, comprising:
The descending power amplifier link of the WCDMA that is connected with power splitter respectively (1), the descending power amplifier link of DCS1800 (2);
The mixer (6) that is connected with the descending power amplifier link of said WCDMA (1), the descending power amplifier link of DCS1800 (2);
The up low noise link of the up low noise link of WCDMA (3), DCS1800 (4) that is connected with said mixer (6) respectively;
The monitoring link (5) that is connected with the descending power amplifier link of said WCDMA (1), the up low noise link of WCDMA (3), the descending power amplifier link of DCS1800 (2) and the up low noise link of DCS1800 (4) respectively.
2. circuit according to claim 1 is characterized in that, the final stage power amplifier pipe of the descending power amplifier link of said WCDMA (1) is the power amplifier of AB class, and its operating frequency is that its operating frequency range is 0.7GHz～2.2GHz.
3. circuit according to claim 2; It is characterized in that; The operating frequency range of the descending power amplifier link of said WCDMA (1) is 2130MHz～2145MHz, comprises power output test section, numerical control gain decay part, ALC automated power level control section and the bad state-detection part of power amplifier.
4. circuit according to claim 1; It is characterized in that; The operating frequency range of the descending power amplifier link of said DCS1800 (2) is 1830MHz～1850MHz, comprises power output test section, numerical control gain decay part, ALC automated power level control section and the bad state-detection part of power amplifier.
5. circuit according to claim 1 is characterized in that, the operating frequency range of the up low noise link of said WCDMA (3) is 1940MHz～1955MHz, comprises numerical control gain decay part and ALC automated power level control section.
6. circuit according to claim 1 is characterized in that, the operating frequency range of the up low noise link of said DCS1800 (4) is 1735MHz～1755MHz, comprises numerical control gain decay part and ALC automated power level control section.
7. circuit according to claim 1 is characterized in that, said monitoring link (5) comprises monitoring part, control section and temperature detection part.
8. circuit according to claim 7 is characterized in that, said monitoring link (5) comprises that switch is used to control descending power amplifier link of said WCDMA (1) and the descending power amplifier link of DCS1800 (2).
9. according to any described circuit in the claim 1 to 8; It is characterized in that; Said circuit is arranged at circuit board; But said circuit board comprises the cavity of six individual screen, circuit, single-chip microcomputer digital circuit and the temperature sensing circuit of the descending power amplifier link of circuit, DCS1800 (2) of the up low noise link of circuit, WCDMA (3) of the up low noise link of circuit, DCS1800 (4) that said six cavitys are respectively applied for the descending power amplifier link of Installation of W CDMA (1), the circuit of mixer (6).
10. circuit according to claim 9 is characterized in that said circuit board comprises top layer and bottom; Said top layer is the microwave panel, is used for the wiring of radio frequency wiring and digital circuit; Said bottom is a ground plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201168190U CN202488455U (en) | 2012-03-26 | 2012-03-26 | Circuit of repeater cover end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201168190U CN202488455U (en) | 2012-03-26 | 2012-03-26 | Circuit of repeater cover end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202488455U true CN202488455U (en) | 2012-10-10 |
Family
ID=46962841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201168190U Expired - Fee Related CN202488455U (en) | 2012-03-26 | 2012-03-26 | Circuit of repeater cover end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202488455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872269A (en) * | 2016-09-27 | 2018-04-03 | 罗森伯格（上海）通信技术有限公司 | Multifrequency digital micro repeater |
-
2012
- 2012-03-26 CN CN2012201168190U patent/CN202488455U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872269A (en) * | 2016-09-27 | 2018-04-03 | 罗森伯格（上海）通信技术有限公司 | Multifrequency digital micro repeater |
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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: 20150803 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150803 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: 20121010 Termination date: 20200326 |