CN200976593Y - Micropower repeater capable of extending plurality of intermediate frequency filtering - Google Patents
Micropower repeater capable of extending plurality of intermediate frequency filtering Download PDFInfo
- Publication number
- CN200976593Y CN200976593Y CNU2006201575878U CN200620157587U CN200976593Y CN 200976593 Y CN200976593 Y CN 200976593Y CN U2006201575878 U CNU2006201575878 U CN U2006201575878U CN 200620157587 U CN200620157587 U CN 200620157587U CN 200976593 Y CN200976593 Y CN 200976593Y
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- frequency
- repeater
- end interface
- selecting module
- external expansion
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Abstract
The utility model discloses an expandable plural intermediate frequency filter micro-power repeater station, relating to a repeater station. The utility model is characterized in that: a donor end interface (200), a first medium duplex filter (110), a first low-noise circuit (120), a first external expandable frequency selection modular (19A), a first power amplifier circuit (140), a second medium duplex filter (150), and a repeater end interface (300) are connected in turn to form a down link; while the repeater end interface (300), the second medium duplex filter (150), a second low-noise circuit (160), a second external expandable frequency selection modular (19B), a second power amplifier circuit (180), the first medium duplex filter (110), and the donor end interface (200) are connected in turn to form an up link. The utility model not only inherits the merits of low cost, assembling agility and convenient using from common repeater station, but also enhances the expandability of filter greatly, and provides an ideal solution scheme for small scale indoor coverage.
Description
Technical field
The utility model relates to a kind of repeater, relates in particular to a kind of main flow personal communication frequency range (PCS frequency range, micro-power repeater of expanding multiple intermediate frequency filtering of 1940～1980/1860～1900MHz) of being applicable to.
Background technology
Along with the rapid increase of global mobile communication number of users, improve the urgent task that network coverage quality has become all radio communication operator rapidly.In the construction of wireless network, rationally using the repeater will be the highest networking mode of a kind of cost performance.Because the most intensive place of indoor talk business often, to carry out that wireless signal covers be the primary selection of each operator to indoor emphatically so use micro-power repeater.
During the second generation mobile radio communication of America, West Asia is built, to the management of frequency range totally not as Chinese domestic standard.The frequency range that each operator managed often is not continuous, and the space between frequency range also is interspersed with other operator usually, and so just the frequency-selective filtering characteristic to micro-power repeater has proposed very high requirement.
As Fig. 1, the structure of existing conventional micro-power repeater is: down link comprises the first LNA circuit 120, first frequency selection circuit 130, first power amplifier 140; Up link comprises the second LNA circuit 160, second frequency selection circuit 170, second power amplifier 180; Add the first medium duplexer filter 110 and the second medium duplexer filter 150.Though the design structure is small and exquisite like this, realization is simple, frequency-selecting function singleness, very dumb can't satisfy the changeable market demand.So it is very necessary to develop a micro-power repeater that can expand intermediate frequency filtering arbitrarily.
Summary of the invention
The purpose of this utility model is in order effectively to solve the problem and shortage that above-mentioned prior art exists, a kind of micro-power repeater that can expand multiple intermediate frequency filtering to be provided.
The utility model is the deriving device of conventional micro-power repeater, isolates the intermediate frequency filtering part on the basis of radio-frequency (RF) index taking into full account, and the strict radiofrequency characteristics that limits each input/output end port, so that expanding in concrete the use.In actual use, both a and b port, c and the d direct port connection of repeater the broad band repeater use can be got up form, also various types of external expansion modules can be between a and b port, c and d port, be connected in series.The exploitation of external expansion module difficulty with respect to built-in frequency selection circuit (be integrated in and amplify in the link) also can reduce a lot.
Specifically, as Fig. 2, the utility model comprises alms giver's end interface 200, repeating transmission end interface 300, modulator-demodulator 400, monitoring panel and power supply 500, door magnetic alarm device 600; Also comprise repeater main body 100, repeater main body 100 comprises the first medium duplexer filter 110, the first LNA circuit 120, first power amplifier 140, the second medium duplexer filter 150, the second LNA circuit 160, second power amplifier, 180, the first external expansion frequency-selecting module 19A, the second external expansion frequency-selecting module 19B;
Alms giver's end interface 200, the first medium duplexer filter 110, the first LNA circuit, 120, the first external expansion frequency-selecting module 19A, first power amplifier 140, the second medium duplexer filter 150, repeating transmission end interface 300 connect to form down link successively;
Repeating transmission end interface 300, the second medium duplexer filter 150, the second LNA circuit, 160, the second external expansion frequency-selecting module 19B, second power amplifier 180, the first medium duplexer filter 110, alms giver's end interface 200 connect to form up link successively;
The modulator-demodulator 400 and the first medium duplexer filter 110 interconnect;
Monitoring panel and power supply 500 are connected with modulator-demodulator 400, repeater main body 100 and door magnetic alarm device 600 respectively;
Described first, second external expansion frequency-selecting module 19A, 19B or be a connecting line, or be multiple intermediate frequency filtering circuit.
Operation principle of the present utility model is as follows:
1, for down link: after the alms giver holds 200 to receive the downstream signal of being sent into by the base station, send into the first dielectric duplexer filter 110; Filtered signal is adjusted to appropriate level through the first LNA circuit 120, enters the first external expansion frequency-selecting module 19A then or directly enters first power amplifier 140; Export repeating transmission end 300 to by the second medium duplexer filter 150 at last through the signal behind first power amplifier 140.
2, for up link: after repeating transmission end 300 receives the upward signal of being sent into by travelling carriage, send into the second dielectric duplexer filter 150; Filtered signal is adjusted to appropriate level through the second LNA circuit 160, enters the second external expansion frequency-selecting module 19B then or directly enters second power amplifier 180; Export repeating transmission end 200 to by the first medium duplexer filter 110 at last through the signal behind second power amplifier 180.
3, the radiofrequency characteristics (as power output, link gain, match condition etc.) of 500 pairs first power amplifiers 140 of monitoring panel and power supply and second power amplifier 180 is monitored and is controlled, and simultaneously modulator-demodulator 400 and door magnetic alarm device 600 is monitored and is controlled.The direct current of monitoring power supply unit 500 outputs is given the first LNA circuit 120, first power amplifier 140, the second LNA circuit 160 and 180 power supplies of second power amplifier respectively; In case of necessity, also can give the first external expansion frequency-selecting module 19A and the second external expansion frequency-selecting module 19B power supply.
The utlity model has following advantage and good effect:
1, the utility model has not only been inherited conventional repeater cost characteristics low, flexible for installation, easy to use, but also has been strengthened the filtering extensibility greatly as the deriving device of conventional micro-power repeater.So, not only, also enriched the product line of repeater for market provides good solution.In addition, the utility model also is one of development trend of micro-power repeater.
2, the mobile communications network construction of the most of country in America developing country (as Mexico, Argentina, Brazil etc.) and West Asia (as Iran, Saudi Arabia etc.) is just at the early-stage, the operation frequency range of operator is divided also very scrappy, therefore this produce market has a high potential, and economic benefit is difficult to estimate.
3, provide desirable solution for the indoor covering of small-scale.
Description of drawings
Fig. 1 is conventional micro-power repeater structured flowchart;
Fig. 2 is the utility model structured flowchart.
Wherein:
100-repeater main body,
The 110-first medium duplexer filter, the 120-first LNA circuit,
130-first frequency selection circuit, 140-first power amplifier,
The 150-second medium duplexer filter, the 160-second LNA circuit,
170-second frequency selection circuit, 180-second power amplifier,
The 19A-first external expansion frequency-selecting module, the 19B-second external expansion frequency-selecting module;
200-alms giver's end interface;
300-retransmits end interface;
The 400-modulator-demodulator;
500-monitoring panel and power supply;
600-door magnetic alarm device.
Embodiment
Further specify below in conjunction with drawings and Examples.
One, each functional part
1, the first medium duplexer filter 110, the second medium duplexer filter 150
Duplexer filter is mainly used in the usefulness of separating the up-downgoing model, and isolated downstream signal enters the first LNA circuit 120, and isolated upward signal enters the second LNA circuit 160.The model of this kind duplexer filter is: MP10C1880/1960F60NCB.
2, the first LNA circuit 120, the second LNA circuit 160
The LNA circuit mainly is to be used for small-signal to amplify, and amplifier has less noise factor (usually below 1.5dB), is exaggerated quality of signals like this and can worsen substantially.The core component that is used for the LNA circuit is an integrated chip 53543.
3, first power amplifier 140, second power amplifier 180
Power amplifier is mainly used in the linear amplification of large-signal (signal generally-more than the 10dBm).The main effect that to produce signal high-power, high linearity be power amplifier.The core component that is used for power amplifier is WJAH1.
4, the first external expansion frequency-selecting module 19A, the second external expansion frequency-selecting module 19B
Aforementioned, first, second external expansion frequency-selecting module 19A, 19B or be a connecting line, or be multiple intermediate frequency filtering circuit.
1) first, second external expansion frequency-selecting module 19A, when 19B is a connecting line,
Form the broadband micro-power repeater this moment, and this repeater can be amplified all signals in the passband, and it is more single to be mainly used in Frequency spectrum ratio, the zone that interference signal is few.
When 2) first, second external expansion frequency-selecting module 19A, 19B are multiple intermediate frequency filtering circuit,
Form frequency selecting repeater this moment, and this repeater can be amplified selectively to the signal in the passband.External intermediate frequency filtering circuit or be that frequency selects module, or be broadband selection module; Or be single frequency-selecting module, or be the multiselect frequency module.By multiple collocation flexibly, almost can satisfy all market demands.
Two, trim designs
In actual applications, the first external expansion frequency-selecting module 19A, the second external expansion frequency-selecting module 19B link to each other with repeater main body 100 by 50 ohm of radio frequency interfaces of standard, place outside the main body.Because there is not heat dissipation problem in expansion module, thus can overlay on the main body, to save the space.
Claims (3)
1, a kind of micro-power repeater that can expand multiple intermediate frequency filtering comprises alms giver's end interface (200), repeating transmission end interface (300), modulator-demodulator (400), monitoring panel and power supply (500), door magnetic alarm device (600), it is characterized in that:
Also comprise repeater main body (100), repeater main body (100) comprises the first medium duplexer filter (110), the first LNA circuit (120), first power amplifier (140), the second medium duplexer filter (150), the second LNA circuit (160), second power amplifier (180), the first external expansion frequency-selecting module (19A), the second external expansion frequency-selecting module (19B);
Alms giver's end interface (200), the first medium duplexer filter (110), the first LNA circuit (120), the first external expansion frequency-selecting module (19A), first power amplifier (140), the second medium duplexer filter (150), repeating transmission end interface (300) connect to form down link successively;
Repeating transmission end interface (300), the second medium duplexer filter (150), the second LNA circuit (160), the second external expansion frequency-selecting module (19B), second power amplifier (180), the first medium duplexer filter (110), alms giver's end interface (200) connect to form up link successively;
The modulator-demodulator (400) and the first medium duplexer filter (110) interconnect;
Monitoring panel and power supply 500 are connected with modulator-demodulator (400), repeater main body (100) and door magnetic alarm device (600) respectively;
Described first, second external expansion frequency-selecting module (19A, 19B) or be a connecting line, or be multiple intermediate frequency filtering circuit.
2, by the described a kind of micro-power repeater that can expand multiple intermediate frequency filtering of claim 1, it is characterized in that:
First, second external expansion frequency-selecting module (19A, 19B) or be that frequency selects module, or be broadband selection module; Or be single frequency-selecting module, or be the multiselect frequency module.
3, by the described a kind of micro-power repeater that can expand multiple intermediate frequency filtering of claim 1, it is characterized in that:
First, second external expansion frequency-selecting module (19A, 19B) links to each other with repeater main body (100) by 50 ohm of radio frequency interfaces of standard, places outside the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201575878U CN200976593Y (en) | 2006-11-24 | 2006-11-24 | Micropower repeater capable of extending plurality of intermediate frequency filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201575878U CN200976593Y (en) | 2006-11-24 | 2006-11-24 | Micropower repeater capable of extending plurality of intermediate frequency filtering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200976593Y true CN200976593Y (en) | 2007-11-14 |
Family
ID=38902872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201575878U Expired - Fee Related CN200976593Y (en) | 2006-11-24 | 2006-11-24 | Micropower repeater capable of extending plurality of intermediate frequency filtering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200976593Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917220A (en) * | 2010-08-20 | 2010-12-15 | 武汉虹信通信技术有限责任公司 | Repeater for eliminating near-far effect |
| CN102480318A (en) * | 2010-11-25 | 2012-05-30 | 武汉虹信通信技术有限责任公司 | Implement for coaxially-structured micropower repeater |
-
2006
- 2006-11-24 CN CNU2006201575878U patent/CN200976593Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917220A (en) * | 2010-08-20 | 2010-12-15 | 武汉虹信通信技术有限责任公司 | Repeater for eliminating near-far effect |
| CN101917220B (en) * | 2010-08-20 | 2013-03-20 | 武汉虹信通信技术有限责任公司 | Repeater for eliminating near-far effect |
| CN102480318A (en) * | 2010-11-25 | 2012-05-30 | 武汉虹信通信技术有限责任公司 | Implement for coaxially-structured micropower repeater |
| CN102480318B (en) * | 2010-11-25 | 2014-04-16 | 武汉虹信通信技术有限责任公司 | Implement for coaxially-structured micropower repeater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20091224 |