CN203013894U

CN203013894U - Five-system eight-frequency combiner

Info

Publication number: CN203013894U
Application number: CN 201220607085
Authority: CN
Inventors: 吉奕; 李灵松; 韦立言; 胡松林
Original assignee: DANDONG HWASHEN ELECTRONICS Co Ltd
Current assignee: DANDONG HWASHEN ELECTRONICS Co Ltd
Priority date: 2012-11-16
Filing date: 2012-11-16
Publication date: 2013-06-19
Anticipated expiration: 2022-11-16

Abstract

The utility model relates to a multi-system multi-frequency combiner for mobile communication, especially to a five-system eight-frequency combiner, which combines signals in eight different frequencies of five systems including CDMA 800, GSM 900, DCS 1800, TD-SCDMA and CDMA 2000, and outputs and covers the signals. The five-system eight-frequency combiner comprises five input ends and one output end, and employs resonant cavity cross-coupling technology and public tap-coupling technology, so that the combiner is easy to debug, and mass production of the combiner is easy. The combiner covers most frequency ranges of prior mobile communication, integrates 2G and 3G technologies of mobile communication, and is low in device loss. According to the combiner, isolation degree can reach as high as 80 dB, interference between different systems can be avoided, and requirements for constructing the 3G system at present can be well satisfied.

Description

A kind of five system's eight frequency combiners

Technical field

The utility model relates to a kind of mixer, and particularly a kind of multisystem multiplefrequency mixer, merge existing mobile communication 2G and 3G frequency range, satisfies the market demand of 3G communication, belongs to the microwave radio communication technique field.

Background technology

China's mobile communications network has entered the 3G epoch, existing mobile communication has the CDMA800 of China Telecom, China Mobile GSM 900, the GSM900 of CHINAUNICOM, the DCS1800 of China Mobile, the DCS1800 of CHINAUNICOM, the TD-SCDMA of the 3G of China Mobile, the WCDMA of the CDMA2000 of the 3G of China Telecom and the 3G of CHINAUNICOM.Outdoor signal can cover by the communication base station that each operator respectively builds each, and the indoor covering system that indoor signal also can be built separately solves.

It is more and more outstanding that each operator builds respectively the problems such as repeated construction that system separately brings, and the new technical scheme that can merge many carrier networks becomes present mobile communication problem demanding prompt solution.

Summary of the invention

The technical problem that the utility model solves is to provide a kind of system signal of different operators network different frequency range can the merging, via the unified multisystem multiplefrequency mixer that sends or receive of an antenna, be about to CDMA800, GSM900, DCS1800, TD-SCDMA, the signal of eight road different frequency ranges of CDMA2000 five systems are combined into one tunnel output to carry out signal and covers.

In order to solve the problems of the technologies described above, the technical scheme that this practicality is adopted is:

A kind of five system's eight frequency combiners, namely five systems and eight road signals close the road, comprise cavity, CDMA800 input, GSM900 input, DCS1800 input, TD-SCDMA input, the CDMA2000 input, close road output community antenna end ANT; The frequency range of described CDMA800 is 825-880MHz, the frequency range of described GSM900 is 890-960MHz, described DCS1800 comprises two frequency range: 1710-1785MHz and 1805-1870MHz, described TD-SCDMA comprises two frequency range: 1880-1910MHz and 2010-2025MHz, described CDMA2000 comprises two frequency range: 1920-1935MHz and 2110-2125MHz, altogether eight frequency ranges.

As further improvement of the utility model, signal input part is five, and signal output part is one.

As further improvement of the utility model, adopt resonant cavity cross-couplings technology, five road signal every roads all comprise a plurality of coaxial resonant cavities.

As further improvement of the utility model, TD-SCDMA and CDMA2000 frequency range output adopt the common tap coupling.

In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are: the system signals that different operators is different are combined into one the tunnel, carrying out signal via an antenna covers, needing can be used for being equivalent to a multisystem mixing platform (POI) in the system of multisystem mixing, avoid many operators to repeat to build the base station, erect a television antenna and cause the equipment waste, more reasonable, the more effective resource of utilizing; And interport isolation is high, and more than reaching 80dB, loss is little, avoids the interference between each system.

Description of drawings

Fig. 1 is the front front view of the utility model five system's eight frequency combiners;

Fig. 2 is the rearview of the utility model five system's eight frequency combiners;

Fig. 3 is the left side view of the utility model five system's eight frequency combiners;

Fig. 4 is the right side view of the utility model five system's eight frequency combiners;

Fig. 5 is the upward view of the utility model five system's eight frequency combiners;

Fig. 6 is the vertical view of the utility model five system's eight frequency combiners.

In figure: 1, CDMA2000 input; 2, TD-SCDMA input; 3, DCS1800 input; 4, GSM900 input; 5, CDMA800 input; 6, community antenna output terminals A NT.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Fig. 1-Fig. 6 is respectively front front view, rearview, left side view, right side view, upward view and the vertical view of the utility model five system's eight frequency combiners, and these five systems, eight frequency combiners comprise the mixer body; CDMA2000 input 1, TD-SCDMA input 2, DCS1800 input 3, GSM900 input 4, CDMA800 input 5, community antenna output terminals A NT6, described mixer comprise eight frequency ranges of five systems.

Wherein, the CDMA800 system, passband is 825-880MHz, adopts 10 resonant cavitys to add 3 grades of cross-couplings; CDMA800 input 5 to community antenna output terminals A NT 6 comprises that 10 resonant cavitys add 3 grades of cross-couplings, and input comprises connector, tap coupling line and tap resonant rod, and output comprises tap resonant rod and coupling line, is connected to community antenna output terminals A NT 6.

GSM900 system wherein, passband is 890-960MHz, adopts 10 resonant cavitys to add 3 grades of cross-couplings, a symmetrical chiasma coupling is standby; Shown in Figure 1, port 4 comprises that to port 6 10 resonant cavitys add 3 grades of capacitive cross couplings, and the standby debugging of cross-couplings groove of reserving a symmetry needs, and can use this when the index surplus is little and reserve cross-couplings; Input comprises connector, tap coupling line and tap resonant rod, and output comprises tap resonant rod and coupling line, is connected to public port 6.

Wherein the DCS1800 system, comprise uplink and downlink, and passband is that the uplink band of 1710-1785MHz adopts 7 resonant cavitys to add 1 grade of cross-couplings, and is shown in Figure 1, and port 3 is to port 6; Passband is the band downlink of 1805-1870MHz, adopts 12 resonant cavitys to add 3 grades of cross-couplings, and is shown in Figure 2, and port 3 is to port 6; Input comprises connector, tap coupling line and tap resonant rod, and output comprises tap resonant rod and coupling line, is connected to public port 6.

Wherein the TD-SCDMA system, comprise two frequency ranges of TDA and TDF, and the TDA passband is 1880-1910MHz, adopt 10 resonant cavitys to add 1 symmetrical chiasma coupling, 1 capacitive cross coupling and 1 perceptual cross-couplings, shown in Figure 1, port 2 is to port 6, and wherein 12 are the common tap coupling; TDF passband 2010-2025MHz adopts 6 resonant cavitys; Shown in accompanying drawing 2, port 2 is to port 6, and wherein 16 are the common tap coupling; Input comprises connector, tap coupling line and tap resonant rod, and output comprises tap resonant rod and coupling line, is connected to public port 6.

Wherein the CDMA2000 system, comprise uplink and downlink, and passband is that the uplink band of 1920-1935MHz adopts 7 resonant cavitys to add 2 grades of capacitive cross couplings, and a symmetrical chiasma coupling is standby, shown in Figure 1, and port one is to port 6; Passband is that the band downlink of 2110-2125MHz adopts 5 resonant cavitys to add 1 grade of capacitive cross coupling, and is shown in Figure 2, and port one is to port 6; Input comprises connector, tap coupling line and tap resonant rod, and output comprises tap resonant rod and coupling line, is connected to public port 6.

These five systems, eight frequency combiners, with CDMA800, frequency range is 825-880MHz, GSM900, and frequency range is 890-960MHz, DCS1800, frequency range is 1710-1785MHz and 1805-1870MHz, TD-SCDMA, and frequency range is 1880-1910MHz and 2010-2025MHz, CDMA2000, frequency range be 1920-1935MHz and 2110-2125MHz five systems totally eight road signals be combined into one road signal output.This eight frequency combiner comprises five inputs, an output; Adopt resonant cavity cross-couplings technology, each passage comprises a plurality of resonant cavitys.Wherein, the CDMA800 system, passband is 825-880MHz, adopts 10 resonant cavitys to add 3 grades of cross-couplings; The GSM900 system, passband is 890-960MHz, adopts 10 resonant cavitys to add 3 grades of cross-couplings, a symmetrical chiasma coupling is standby; The DCS1800 system comprises uplink and downlink, and passband is that the uplink band of 1710-1785MHz adopts 7 resonant cavitys to add 1 grade of cross-couplings, and passband is the band downlink of 1805-1870MHz, adopts 12 resonant cavitys to add 3 grades of cross-couplings; The TD-SCDMA system comprises TDA and two frequency ranges of TDF, and the TDA passband is 1880-1910MHz, adopts 10 resonant cavitys to add 1 symmetrical chiasma coupling, 1 capacitive cross coupling and 1 perceptual cross-couplings, and TDF passband 2010-2025MHz adopts 6 resonant cavitys; The CDMA2000 system comprises uplink and downlink, passband is that the uplink band of 1920-1935MHz adopts 7 resonant cavitys to add 2 grades of capacitive cross couplings, a symmetrical chiasma coupling is standby, and passband is that the band downlink of 2110-2125MHz adopts 5 resonant cavitys to add 1 grade of capacitive cross coupling; Every road passband has the tap coupling device connected with corresponding input port, and the output of five eight frequency ranges of system connects together and consists of community antenna end ANT.Wherein up at the TDA of adjacent frequency bands and CDMA2000 of output, passband is a common tap coupling of 1880-1910MHz and 1920-1935MHz two-way, TDF and CDMA2000 at adjacent frequency bands are descending, passband is that 2010-2025MHz and 2110-2125MHz two-way are coupled with a common tap, the output port tap is few like this, more easily coordinates.

Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:

The system signals that different operators is different are combined into one the tunnel, carrying out signal via an antenna covers, needing can be used in the system of multisystem mixing, be equivalent to a multisystem mixing platform (POI), avoid many operators to repeat to build the base station, erect a television antenna and cause the equipment waste, more reasonable, the more effective resource of utilizing.Adopt coaxial cavity cross-couplings technology and common tap coupling technique, make the mixer debugging more easily realize, be easy to batch production; This mixer frequency range covers most of frequency range of existing mobile communication, comprise 2G and 3G, and loss is little, and isolation is avoided the interference between each system up to more than 80dB, can be good at satisfying the needs of building at present the 3G system.

Be only below concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.The technical scheme that all employings are equal to or equivalence is replaced and form is within all dropping on the utility model rights protection scope.

Claims

1. system's eight frequency combiners, it is characterized in that: five systems and eight road signals close the road, comprise cavity, CDMA800 input, GSM900 input, DCS1800 input, TD-SCDMA input, the CDMA2000 input, close road output community antenna end ANT; The frequency range of described CDMA800 is 825-880MHz, the frequency range of described GSM900 is 890-960MHz, described DCS1800 comprises two frequency range: 1710-1785MHz and 1805-1870MHz, described TD-SCDMA comprises two frequency range: 1880-1910MHz and 2010-2025MHz, described CDMA2000 comprises two frequency range: 1920-1935MHz and 2110-2125MHz, altogether eight frequency ranges.

2. five system's eight frequency combiners according to claim 1, it is characterized in that: signal input part is five, signal output part is one.

3. five system's eight frequency combiners according to claim 1 and 2 is characterized in that: adopt resonant cavity cross-couplings technology, five road signal every roads all comprise a plurality of coaxial resonant cavities.

4. five system's eight frequency combiners according to claim 1 and 2, is characterized in that: TD-SCDMA and the coupling of CDMA2000 frequency range output employing common tap.