CN201845845U - POI low intermodulation system - Google Patents
POI low intermodulation system Download PDFInfo
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- CN201845845U CN201845845U CN2010205897468U CN201020589746U CN201845845U CN 201845845 U CN201845845 U CN 201845845U CN 2010205897468 U CN2010205897468 U CN 2010205897468U CN 201020589746 U CN201020589746 U CN 201020589746U CN 201845845 U CN201845845 U CN 201845845U
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Abstract
The utility model discloses a POI low intermodulation system and aims at providing a POI low intermodulation system which has modular design, good expansion and wide frequency band. The POI low intermodulation system comprises a plurality of combining unit, wherein different combining units correspond to different frequency bands. According to different needs, different combining units can be selected for establishing a combining system. The POI low intermodulation system is simple to use and less in wire jumper, has a monitoring function, and is applicable to environments needing to combine more signals with different frequency bands.
Description
Technical field
The utility model relates to a kind of multisystem mixing technology, especially relates to the low intermodulation system of a kind of POI.
Background technology
China's existing mobile communication network has the GSM900/DCS1800/TD-SCDMA of China Mobile, the GSM900/ DCS1800 and the WCDMA of CHINAUNICOM, the CDMA800/CDMA2000/WLAN of China Telecom, Digital Clustering and other communication systems.The outdoor location network signal can cover by base station separately, and indoor signal can solve by traditional indoor covering system.It is more and more outstanding that yet each operator builds the problems such as repeated construction that covering system brought of oneself respectively.
POI(POINT OF INTERFACE), i.e. multisystem mixing platform.Needing to be mainly used in heavy construction that multiple-network system inserts, the urban operating mechanism, as places such as large-scale museum, subway, railway station, airport, office offices of government.This POI product has been realized multiband, many signals co-shunt function, and the overlapping investment of having avoided indoor distributed system to build is the effective means of the compatible covering of the many network signals of a kind of realization.
It is the patent documentation of CN1988248A that State Intellectual Property Office of the People's Republic of China discloses publication number on 06 27th, 2007, title is a kind of mixer, it comprises cavity body filter, microwave circulator, the belt direction setting of electromagnetic wave energy in the described microwave circulator is that port one is to port 2, port 2 is to port 3, described cavity body filter is connected to 1 port of microwave circulator, cavity body filter and microwave circulator port one constitute mixer input port 1 jointly, 2 ports of microwave circulator are mixer public output mouth, and microwave circulator 3 ports constitute the input port 2 of mixer.The weak point of this scheme is and multiple signals can not be closed the road, and autgmentability is good inadequately.
Summary of the invention
The utility model mainly is to solve existing in prior technology multiple signals to be closed road, the imperfect technical problem of autgmentability, a kind of modularized design is provided, closes that the road way is many, the POI of favorable expandability hangs down the intermodulation system.
The utility model is mainly solved by following technical proposals at above-mentioned technical problem: a kind of POI hangs down the intermodulation system, comprise first combiner unit, second combiner unit, the 3rd combiner unit, the 4th combiner unit, unit, pentahapto road, 3dB electric bridge, first combiner unit comprises 5 ports, second port and the 4th port are connected the input signal of two different frequency ranges respectively, first port is connected two connectors respectively with the 3rd port, and five-port connects the input of 3dB electric bridge; The output of 3dB electric bridge connects the input of different second combiner units respectively; Second combiner unit has 7 ports, and first port, second port, the 3rd port, the 4th port are input, and five-port, the 7th port are monitoring client, and the 6th port is connected with antenna; The 4th combiner unit has 4 ports, and second port connects input signal, and first port is connected with connector, and the 3rd port and the 4th port are output, connects with the input of different second combiner units respectively; Unit, pentahapto road has 3 ports, and second port connects input signal, and first port is connected with connector, and the 3rd port is an output; The 3rd combiner unit has 6 ports, second port and the 4th port are connected the input signal of two different frequency ranges respectively, first port is connected two connectors respectively with the 3rd port, and five-port and the 6th port are output, connects with the input of different second combiner units respectively.Each combiner unit is a module, and modular design makes that the autgmentability of system is very good, needs which part just with in which partly adding system, do not need can save corresponding module yet, and the whole system wire jumper is few, has promoted the third order intermodulation performance, and the signal combination loss is little; Connector can connect watch-dog, thereby can monitor the state of input signal at any time.
As preferably, first combiner unit comprises two 30dB electric bridges and a mixer, the 30dB electric bridge has four ports, first port is first port and the 3rd port of first combiner unit, second port is second port and the 4th port of first combiner unit, the 3rd port is connected with the input of mixer, and the 4th port is connected with load, the other end ground connection of load; The output of mixer is the five-port of first combiner unit.
As preferably, the 3rd combiner unit comprises two 30dB electric bridges and a 3dB electric bridge, the 30dB electric bridge has four ports, first port is first port and the 3rd port of first combiner unit, second port is second port and the 4th port of first combiner unit, the 3rd port is connected with the input of 3dB electric bridge, and the 4th port is connected with load, the other end ground connection of load; The output of 3dB electric bridge is the five-port and the 6th port of the 3rd combiner unit.
As preferably, the 4th combiner unit comprises a 30dB electric bridge and a 3dB electric bridge, first port of 30dB electric bridge is first port of the 4th combiner unit, second port of 30dB electric bridge is second port of second combiner unit, the 3rd port of 30dB electric bridge is connected with second port of 3dB electric bridge, the 3rd port of 3dB electric bridge is the 4th combiner unit the 3rd port, the 4th port of 3dB electric bridge is the 4th combiner unit the 4th port, the 4th port of 30dB electric bridge is connected with load respectively with first port of a 3dB electric bridge, the other end ground connection of load.
As preferably, unit, pentahapto road comprises a 30dB electric bridge, first port of 30dB electric bridge is first port of unit, pentahapto road, second port of 30dB electric bridge is second port of unit, pentahapto road, the 3rd port of 30dB electric bridge is the 3rd port of unit, pentahapto road, the 4th port of 30dB electric bridge is connected with load, the other end ground connection of load.
As preferably, it is the input signal of 770-778MHz, 870-880MHz, 930-954MHz, 954-960MHz that the input of first combiner unit connects frequency band, it is the input signal of 1805-1850MHz that the input of the 4th combiner unit connects frequency band, it is the input signal of 1900-1910MHz that the input of unit, pentahapto road connects frequency band, and it is the input signal of 2010-2170MHz, 2110-2170MHz that the input of the 3rd combiner unit connects frequency band.Different frequency band inputs can be satisfied the requirement of varying environment, has enlarged the scope of application of the low intermodulation system of POI.
As preferably, second combiner unit comprises a mixer, the one 30dB electric bridge and the 2nd 30dB electric bridge, the input of mixer is first to fourth port of second combiner unit, second port of the one 30dB electric bridge is connected and is connected with the output of mixer with first port of the 2nd 30dB electric bridge, the 3rd port of the one 30dB electric bridge is connected with the 4th port of the 2nd 30dB electric bridge and as the 6th port of second combiner unit, first port of the one 30dB electric bridge is the 7th port of second combiner unit, the 3rd port of the 2nd 30dB electric bridge is the five-port of second combiner unit, the 4th port of the one 30dB electric bridge is connected with load respectively with second port of the 2nd 30dB electric bridge, the other end ground connection of load.Monitoring client can connect watch-dog and understand the antenna output state.
As preferably, each combiner unit is a cavity structure.Cavity structure can carry higher power.
The beneficial effect that the utility model brings is, modularized design, and dilatancy is good, and the third order intermodulation performance is very good, satisfies the individual sexual demand of different system/frequency range, and system has the integral monitoring function, and is easy to maintenance, and the signal combination loss is little, and power capacity is big.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of first combiner unit structural representation of the present utility model;
Fig. 3 is a kind of second combiner unit structural representation of the present utility model;
Fig. 4 is a kind of the 3rd combiner unit structural representation of the present utility model;
Fig. 5 is a kind of the 4th combiner unit structural representation of the present utility model;
Fig. 6 is a kind of pentahapto of the present utility model road cellular construction schematic diagram;
Fig. 7 is a kind of 3dB electric bridge port definition figure of the present utility model;
Among the figure: 1, first combiner unit, 2, second combiner unit, the 3, the 3rd combiner unit, the 4, the 4th combiner unit, 5, unit, pentahapto road, 6, the 3dB electric bridge, 7, the 30dB electric bridge, 8, connector, 9, antenna, 10, watch-dog, 11, mixer.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of POI of present embodiment hangs down the intermodulation system, as shown in Figure 1, comprise first combiner unit 1, second combiner unit 2, the 3rd combiner unit 3, the 4th combiner unit 4, unit, pentahapto road 5,3dB electric bridge 6, first combiner unit 1 comprises 5 ports, second port and the 4th port are connected the input signal of two different frequency ranges respectively, first port is connected the input that two connector 8, the five-port connect 3dB electric bridge 6 respectively with the 3rd port; The output of 3dB electric bridge 6 connects the input of different second combiner units respectively; Second combiner unit 2 has 7 ports, and first port, second port, the 3rd port, the 4th port are input, and five-port, the 7th port are monitoring client, connects watch-dog 10 the 6th port and is connected with antenna 9; The 4th combiner unit 4 has 4 ports, and second port connects input signal, and first port is connected with connector 8, and the 3rd port and the 4th port are output, connects with the input of different second combiner units 2 respectively; Unit, pentahapto road 5 has 3 ports, and second port connects input signal, and first port is connected with connector 8, and the 3rd port is an output; The 3rd combiner unit 3 has 6 ports, second port and the 4th port are connected the input signal of two different frequency ranges respectively, first port is connected two connector 8, the five-port respectively with the 3rd port and the 6th port is an output, connects with the input of different second combiner units 2 respectively.
3dB electric bridge port definition as shown in Figure 7,30dB electric bridge port definition is as shown in Figure 6.
The 3rd combiner unit 3 as shown in Figure 4, comprise two 30dB electric bridges 7 and a 3dB electric bridge 6,30dB electric bridge 7 has four ports, first port is first port and the 3rd port of first combiner unit 1, second port is second port and the 4th port of first combiner unit 1, the 3rd port is connected with the input of 3dB electric bridge 6, and the 4th port is connected with load, the other end ground connection of load; The output of 3dB electric bridge 6 is the five-port and the 6th port of the 3rd combiner unit 3.
The 4th combiner unit 4 as shown in Figure 5, comprise a 30dB electric bridge 7 and a 3dB electric bridge 6, first port of 30dB electric bridge 7 is first port of the 4th combiner unit 4, second port of 30dB electric bridge 7 is second port of second combiner unit 2, the 3rd port of 30dB electric bridge 7 is connected with second port of 3dB electric bridge 6, the 3rd port of 3dB electric bridge 6 is the 4th combiner unit 4 the 3rd port, the 4th port of 3dB electric bridge 6 is the 4th combiner unit 4 the 4th port, the 4th port of 30dB electric bridge 7 is connected with load respectively with first port of a 3dB electric bridge 6, the other end ground connection of load.
Unit, pentahapto road 5 as shown in Figure 6, comprise a 30dB electric bridge 7, first port of 30dB electric bridge 7 is first port of unit, pentahapto road 5, second port of 30dB electric bridge 7 is second port of unit, pentahapto road 5, the 3rd port of 30dB electric bridge 7 is the 3rd port of unit, pentahapto road 5, the 4th port of 30dB electric bridge 7 is connected with load, the other end ground connection of load.
It is the input signal of 770-778MHz, 870-880MHz, 930-954MHz, 954-960MHz that the input of first combiner unit 1 connects frequency band, it is the input signal of 1805-1850MHz that the input of the 4th combiner unit 4 connects frequency band, it is the input signal of 1900-1910MHz that the input of unit, pentahapto road 5 connects frequency band, and it is the input signal of 2010-2170MHz, 2110-2170MHz that the input of the 3rd combiner unit 3 connects frequency band.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as 3dB electric bridge, mixer morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (9)
1. a POI hangs down the intermodulation system, comprise first combiner unit, second combiner unit, the 3rd combiner unit, the 4th combiner unit, unit, pentahapto road, 3dB electric bridge, it is characterized in that, described first combiner unit comprises 5 ports, second port and the 4th port are connected the input signal of two different frequency ranges respectively, first port is connected two connectors respectively with the 3rd port, and five-port connects the input of described 3dB electric bridge; The output of described 3dB electric bridge connects the input of different second combiner units respectively; Described second combiner unit has 7 ports, and first port, second port, the 3rd port, the 4th port are input, and five-port, the 7th port are monitoring client, and the 6th port is connected with antenna; Described the 4th combiner unit has 4 ports, and second port connects input signal, and first port is connected with connector, and the 3rd port and the 4th port are output, connects with the input of different second combiner units respectively; Unit, described pentahapto road has 3 ports, and second port connects input signal, and first port is connected with connector, and the 3rd port is an output; Described the 3rd combiner unit has 6 ports, second port and the 4th port are connected the input signal of two different frequency ranges respectively, first port is connected two connectors respectively with the 3rd port, and five-port and the 6th port are output, connects with the input of different second combiner units respectively.
2. POI according to claim 1 hangs down the intermodulation system, it is characterized in that, described first combiner unit comprises two 30dB electric bridges and a mixer, described 30dB electric bridge has four ports, first port is first port and the 3rd port of first combiner unit, and second port is second port and the 4th port of first combiner unit, and the 3rd port is connected with the input of described mixer, the 4th port is connected with load, the other end ground connection of described load; The output of described mixer is the five-port of first combiner unit.
3. POI according to claim 1 hangs down the intermodulation system, it is characterized in that, described the 3rd combiner unit comprises two 30dB electric bridges and a 3dB electric bridge, described 30dB electric bridge has four ports, first port is first port and the 3rd port of first combiner unit, and second port is second port and the 4th port of first combiner unit, and the 3rd port is connected with the input of described 3dB electric bridge, the 4th port is connected with load, the other end ground connection of described load; The output of described 3dB electric bridge is the five-port and the 6th port of the 3rd combiner unit.
4. POI according to claim 1 hangs down the intermodulation system, it is characterized in that, the 4th combiner unit comprises a 30dB electric bridge and a 3dB electric bridge, first port of described 30dB electric bridge is first port of the 4th combiner unit, second port of described 30dB electric bridge is second port of second combiner unit, the 3rd port of described 30dB electric bridge is connected with second port of 3dB electric bridge, the 3rd port of described 3dB electric bridge is the 4th combiner unit the 3rd port, the 4th port of described 3dB electric bridge is the 4th combiner unit the 4th port, the 4th port of described 30dB electric bridge is connected with load respectively with first port of a 3dB electric bridge, the other end ground connection of described load.
5. POI according to claim 1 hangs down the intermodulation system, it is characterized in that, unit, described pentahapto road comprises a 30dB electric bridge, first port of described 30dB electric bridge is first port of unit, pentahapto road, second port of described 30dB electric bridge is second port of unit, pentahapto road, the 3rd port of described 30dB electric bridge is the 3rd port of unit, pentahapto road, and the 4th port of described 30dB electric bridge is connected with load, the other end ground connection of described load.
6. according to the low intermodulation system of any described POI in the claim 1 to 5, it is characterized in that, it is the input signal of 770-778MHz, 870-880MHz, 930-954MHz, 954-960MHz that the input of described first combiner unit connects frequency band, it is the input signal of 1805-1850MHz that the input of described the 4th combiner unit connects frequency band, it is the input signal of 1900-1910MHz that the input of unit, described pentahapto road connects frequency band, and it is the input signal of 2010-2170MHz, 2110-2170MHz that the input of described the 3rd combiner unit connects frequency band.
7. POI according to claim 1 hangs down the intermodulation system, it is characterized in that, described second combiner unit comprises a mixer, the one 30dB electric bridge and the 2nd 30dB electric bridge, the input of described mixer is first to fourth port of second combiner unit, second port of the one 30dB electric bridge is connected and is connected with the output of mixer with first port of the 2nd 30dB electric bridge, the 3rd port of the one 30dB electric bridge is connected with the 4th port of the 2nd 30dB electric bridge and as the 6th port of second combiner unit, first port of the one 30dB electric bridge is the 7th port of second combiner unit, the 3rd port of the 2nd 30dB electric bridge is the five-port of second combiner unit, the 4th port of the one 30dB electric bridge is connected with load respectively with second port of the 2nd 30dB electric bridge, the other end ground connection of described load.
8. according to any one or the low intermodulation system of the described POI of claim 7 in the claim 1 to 5, it is characterized in that described each combiner unit is a cavity structure.
9. POI according to claim 6 hangs down the intermodulation system, it is characterized in that, described each combiner unit is a cavity structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205897468U CN201845845U (en) | 2010-11-04 | 2010-11-04 | POI low intermodulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205897468U CN201845845U (en) | 2010-11-04 | 2010-11-04 | POI low intermodulation system |
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| CN201845845U true CN201845845U (en) | 2011-05-25 |
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| CN2010205897468U Expired - Lifetime CN201845845U (en) | 2010-11-04 | 2010-11-04 | POI low intermodulation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664694A (en) * | 2012-04-25 | 2012-09-12 | 中国联合网络通信有限公司广东省分公司 | Multi-band and multi-signal mixed inter-modulation interference analyzer and analyzing method thereof |
| CN104052530A (en) * | 2014-06-19 | 2014-09-17 | 京信通信系统（中国）有限公司 | POI expansion device and POI expansion system |
| CN106856411A (en) * | 2017-02-22 | 2017-06-16 | 京信通信系统（中国）有限公司 | POI equipment and method are held in a kind of thermal expansion |
| CN114520663A (en) * | 2022-02-07 | 2022-05-20 | Oppo广东移动通信有限公司 | Signal transmitting device, radio frequency front-end module and equipment |
-
2010
- 2010-11-04 CN CN2010205897468U patent/CN201845845U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664694A (en) * | 2012-04-25 | 2012-09-12 | 中国联合网络通信有限公司广东省分公司 | Multi-band and multi-signal mixed inter-modulation interference analyzer and analyzing method thereof |
| CN104052530A (en) * | 2014-06-19 | 2014-09-17 | 京信通信系统（中国）有限公司 | POI expansion device and POI expansion system |
| CN104052530B (en) * | 2014-06-19 | 2017-09-29 | 京信通信系统（中国）有限公司 | POI flash chambers and dilatation POI systems |
| CN106856411A (en) * | 2017-02-22 | 2017-06-16 | 京信通信系统（中国）有限公司 | POI equipment and method are held in a kind of thermal expansion |
| WO2018153163A1 (en) * | 2017-02-22 | 2018-08-30 | 京信通信系统（中国）有限公司 | Thermal capacity expansion poi device and method |
| CN106856411B (en) * | 2017-02-22 | 2019-04-30 | 京信通信系统（中国）有限公司 | POI equipment and method are held in a kind of thermal expansion |
| CN114520663A (en) * | 2022-02-07 | 2022-05-20 | Oppo广东移动通信有限公司 | Signal transmitting device, radio frequency front-end module and equipment |
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Granted publication date: 20110525 |