CN202282780U - Antenna isolation measuring device for wireless repeater - Google Patents
Antenna isolation measuring device for wireless repeater Download PDFInfo
- Publication number
- CN202282780U CN202282780U CN2011203562021U CN201120356202U CN202282780U CN 202282780 U CN202282780 U CN 202282780U CN 2011203562021 U CN2011203562021 U CN 2011203562021U CN 201120356202 U CN201120356202 U CN 201120356202U CN 202282780 U CN202282780 U CN 202282780U
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- antenna
- controller
- wireless repeater
- isolation
- signal
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- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The utility model discloses an antenna isolation measuring device for a wireless repeater, which comprises a transmitter and a receiver, wherein the transmitter is used for outputting a transmitting signal and displaying the intensity of the transmitting signal via a coverage antenna, and is connected with the coverage antenna in the wireless repeater; the receiver is used for detecting an inverse disclosure signal of the coverage antenna via a donor antenna and displaying the intensity of the detecting signal, and is also connected with the coverage antenna in the wireless repeater. The antenna isolation measuring device provided by the utility model facilitates fast measurement of the antenna isolation of the wireless repeater, and ensures that a self-excitation effect is not generated in the repeater, so that the installation of the wireless repeater is optimized and accelerated, and the antenna isolation measuring device has the advantages of simple structure and low cost.
Description
Technical field
The utility model relates to a kind of measurement mechanism, especially relates to a kind of isolation between antennas measurement mechanism that is used for wireless discharging-directly station.
Background technology
The comparatively abominable and more sparse place of population at some environment; The use of signal of base station transmission and capacity can receive very big restriction; Need carry out relaying to signal through wireless discharging-directly station and amplify, to realize covering of signal and making full use of of base station capacity on a large scale.
Wireless discharging-directly station receives through donor antenna and is sent by cover antenna after signal amplifies; The blind area that can realize signal covers; If but the signal leakage of cover antenna can cause the self-excitation Effect of repeater to donor antenna, and the repeater is repeatedly amplified leakage signal; Cause a large amount of signals to disturb, solving this type of problem needs the donor antenna of wireless discharging-directly station and cover antenna to have the good isolation degree.
Generally comparatively build is big, cost is higher for the isolation measuring instrument of specialty, is not easy in this type of harsh conditions, use.Therefore, how to design easy easy-to-use isolation survey tool, become one of technical barrier of current urgent need solution.
The utility model content
For solving prior art problems, the utility model proposes a kind of isolation between antennas measurement mechanism that is used for wireless discharging-directly station, can measure the isolation between antennas of wireless discharging-directly station quickly and easily, and communication system is not produced interference.
The utility model adopts following technical scheme to realize: a kind of isolation between antennas measurement mechanism that is used for wireless discharging-directly station; It comprises: be used for through transmitter that transmits and show transmit signal strength of cover antenna output, it connects the cover antenna of wireless discharging-directly station; Be used for detecting the reverse leakage signal of cover antenna and showing the receiver of detection signal strength through donor antenna, it connects the cover antenna of wireless discharging-directly station.
Wherein, said transmitter comprises: first controller; First display module that connects first controller; Be connected to phase-locked loop, first filter, first attenuator, power amplifier and second filter between first controller and the cover antenna in turn, and second filter will feed back connection first controller through first detecting circuit.
Wherein, said receiver comprises: second controller; Second display module that connects second controller; Be connected to the 3rd filter, second attenuator and second detecting circuit between the donor antenna and second controller in turn.
Compared with prior art, the utlity model has following beneficial effect:
The testing apparatus of the utility model helps measuring fast the isolation between antennas of wireless discharging-directly station, guarantees that the repeater does not produce self-excitation Effect, thereby optimizes and accelerate the installation of wireless discharging-directly station.And the testing apparatus small volume and less weight realizes that cost is low, for user's Fast Installation wireless discharging-directly station offers convenience.Be applicable to CDMA and GSM900 GSM, operating frequency is 1030 ± 15MHz, can not cause noise jamming to conventional GSM.
Description of drawings
Fig. 1 is the structural representation that the utility model proposes testing apparatus;
Fig. 2 is the structural representation of transmitter among Fig. 1;
Fig. 3 is the structural representation of receiver among Fig. 1.
Embodiment
As shown in Figure 1; The utility model proposes a kind of wireless discharging-directly station antenna insulated degree testing apparatus; The operating frequency of testing apparatus is 1030 ± 15MHz; And testing apparatus comprises: transmitter 1, the receiver 2 that is connected with transmitter 1, transmitter 1 are transmitting of 17 ± 3dBm through cover antenna 10 output intensities and show its intensity that receiver 2 detects the reverse leakage signal of cover antenna 10 and shows its intensity through donor antenna 20.Wherein, isolation (dB) can deduct transmit signal strength (dBm) and draws by receiving signal strength signal intensity (dBm).
As shown in Figure 2, transmitter 1 comprises: first controller 12; Be connected to the phase-locked loop (PLL between first controller 12 and the cover antenna 10 in turn; Phase Locked Loop) 13, first filter 14, first attenuator 15, power amplifier 16 and second filter 17, and second filter 17 is given first controller 12 through the output signal feedback that first detecting circuit 18 will output to cover antenna 10; In addition, first controller 12 connects first display module 19.
During work, produce signal by phase-locked loop 113, successively through after 14 filtering of first filter, decay adjusting and the power amplifier 16 by first attenuator 15 amplifies again, outputs to cover antenna 10 through second filter 17 at last; And 18 pairs of first detecting circuits output to the output signal of cover antenna 10 and detect, and the power of 12 pairs of output of first controller signal are sampled, and show through first display module 19 through A/D conversion back.
In addition, transmitter 1 is a hand-hold type, and inside has electric power management circuit, has rechargeable battery, and battery capacity can supply continuous operation more than 4 hours, can be user-friendly.
In conjunction with shown in Figure 3, the operating frequency of receiver 2 is 1030 ± 15MHz, the power detection scope is-20～-70dBm.In receiver 2; Detection signal (the reverse leakage signal of cover antenna 10) by donor antenna 20 receptions; Successively through after the 3rd filter 26, second attenuator 25; Carry out signal power through second detecting circuit 24 and detect, at last by second controller 22 with rectified signal sample with the A/D conversion after output to second display module 23 and show.
Wherein, receiver 2 is a hand-hold type, and inside has electric power management circuit, has rechargeable battery, and battery capacity can supply continuous operation more than 4 hours, can be user-friendly.
To sum up; The utility model is launched and shows the signal of certain power through cover antenna 10 by its transmitter 1; Go out to receive the power of signal simultaneously through receiver 2 and donor antenna 20 joint detection; Deduct the value of transmitting power through the value of the received power that shows, can draw the big probable value of wireless discharging-directly station antenna insulated degree.Therefore, the utility model is not only novel, and is reasonable in design, and equipment manufacturing cost is low, and effect is good, and its market prospects are considerable.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (3)
1. isolation between antennas measurement mechanism that is used for wireless discharging-directly station is characterized in that said measurement mechanism comprises:
Be used for through transmitter that transmits and show transmit signal strength of cover antenna output, it connects the cover antenna of wireless discharging-directly station;
Be used for detecting the reverse leakage signal of cover antenna and showing the receiver of detection signal strength through donor antenna, it connects the cover antenna of wireless discharging-directly station.
2. according to the said isolation between antennas measurement mechanism that is used for wireless discharging-directly station of claim 1, it is characterized in that said transmitter comprises: first controller; First display module that connects first controller; Be connected to phase-locked loop, first filter, first attenuator, power amplifier and second filter between first controller and the cover antenna in turn, and second filter will feed back connection first controller through first detecting circuit.
3. according to the said isolation between antennas measurement mechanism that is used for wireless discharging-directly station of claim 1, it is characterized in that said receiver comprises: second controller; Second display module that connects second controller; Be connected to the 3rd filter, second attenuator and second detecting circuit between the donor antenna and second controller in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203562021U CN202282780U (en) | 2011-09-21 | 2011-09-21 | Antenna isolation measuring device for wireless repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203562021U CN202282780U (en) | 2011-09-21 | 2011-09-21 | Antenna isolation measuring device for wireless repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282780U true CN202282780U (en) | 2012-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203562021U Expired - Fee Related CN202282780U (en) | 2011-09-21 | 2011-09-21 | Antenna isolation measuring device for wireless repeater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104869627A (en) * | 2014-02-26 | 2015-08-26 | 中国移动通信集团公司 | Signal amplification gain adjustment method, device and related equipment |
| CN105929279A (en) * | 2016-05-16 | 2016-09-07 | 中国电子科技集团公司第四十研究所 | Multichannel microwave receiving assembly inter-channel isolation index testing device and method |
-
2011
- 2011-09-21 CN CN2011203562021U patent/CN202282780U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104869627A (en) * | 2014-02-26 | 2015-08-26 | 中国移动通信集团公司 | Signal amplification gain adjustment method, device and related equipment |
| CN104869627B (en) * | 2014-02-26 | 2019-02-05 | 中国移动通信集团公司 | A kind of signal gain amplifier method of adjustment, device and relevant device |
| CN105929279A (en) * | 2016-05-16 | 2016-09-07 | 中国电子科技集团公司第四十研究所 | Multichannel microwave receiving assembly inter-channel isolation index testing device and method |
| CN105929279B (en) * | 2016-05-16 | 2018-08-24 | 中国电子科技集团公司第四十一研究所 | Index testing device and method are isolated between a kind of Multi-channel microwave receiving unit road |
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Legal Events
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| DD01 | Delivery of document by public notice |
Addressee: FOSHAN AMPLITEC TECH DEVELOPMENT CO., LTD. Document name: Notification to Go Through Formalities of Registration |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: FOSHAN AMPLITEC TECH DEVELOPMENT CO., LTD. Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: FOSHAN AMPLITEC TECH DEVELOPMENT CO., LTD. Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: FOSHAN AMPLITEC TECH DEVELOPMENT CO., LTD. Document name: Notification of Termination of Patent Right |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20150921 |
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| EXPY | Termination of patent right or utility model |