CN102364749B - Multi-frequency combiner, transmission combiner, receiving combiner and bridge for the combiners - Google Patents
Multi-frequency combiner, transmission combiner, receiving combiner and bridge for the combiners Download PDFInfo
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- CN102364749B CN102364749B CN201110298143.1A CN201110298143A CN102364749B CN 102364749 B CN102364749 B CN 102364749B CN 201110298143 A CN201110298143 A CN 201110298143A CN 102364749 B CN102364749 B CN 102364749B
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Abstract
The embodiment of the invention discloses a multi-frequency combiner, which comprises a transmitting combiner and a receiving combiner which respectively comprise a first wave filter and a second wave filter, an input/output port of each first wave filter is connected with a resonator in a head/tail cavity of the first wave filter through a one quarter wavelength tapping wire, an input/output port of each second wave filter is connected with a resonator in a head/tail cavity of the second wave filter through a one quarter wavelength tapping wire, input ports of the first wave filter and the second wave filter are connected through a one quarter wavelength wire, and output ports of the first wave filter and the second wave filter are connected through a one quarter wavelength wire; a single cross coupling window is arranged between the head cavities of the first wave filter and the second wave filter, and a single cross coupling window is arranged between the tail cavities of the first wave filter and the second wave filter. The multi-frequency combiner provided by the invention realizes non-interference between receiving and transmitting signals, and is easy to debug, and the processing cost is reduced.
Description
Technical field
The embodiment of the present invention relates to mobile communication technology field, particularly a kind of multiplefrequency mixer.
Background technology
In the application of mobile communication base station system, for reaching the object of simplifying system, reception/the transmitting terminal of two cover base stations conventionally shares a set of antenna and brings in the function that realizes reception or transmit, for realizing this function and reaching the reception of two cover base stations and transmit, do not interfere with each other the signal combiner that the mobile communication base station system of prior art adopts 3dB electric bridge and band pass filter to combine.
Refer to Fig. 1, Fig. 1 is the equivalent circuit diagram of signal combiner in prior art.The first base station BTS 1(Base Transceiver Station), the second base station BTS 2, a 3dB electric bridge 101, the first emission filter 102, the first receiving filter 103, the second emission filter 104, the second receiving filter 105, the 2nd 3dB electric bridge 106, load LAOD and antenna ANT as shown in Figure 1, in prior art, signal combiner 10 comprises:.Wherein, the one 3dB electric bridge 101 and the 2nd 3dB electric bridge 106 can be divided into an input signal two constant amplitudes and have the signal of 90 ° of phase differences each other, to isolate the signal between the first base station BTS 1 and the second base station BTS 2, the transmitting between the first base station BTS 1 and the second base station BTS 2 is not interfere with each other with reception signal.
When the first base station BTS 1 is launched first signal, first signal is from port 2 inputs of a 3dB electric bridge 101, after a 3dB electric bridge 101, being divided into two paths of signals exports from port 3 and the port 4 of a 3dB electric bridge 101 respectively, this two paths of signals is respectively by corresponding the first emission filter 102 and the second emission filter 104, respectively from port 5 and port 6 outputs, the 2nd 3dB electric bridge 106 is by the synthetic road signal of this two paths of signals from port 7 outputs, and therefore the first base station BTS 1 is launched first signal and can all from antenna ANT port, be exported.In like manner, when antenna ANT receives secondary signal, this signal is divided into two paths of signals respectively from port 5 and port 6 outputs by the 2nd 3dB electric bridge 106, and by port 3 and the port 4 of the first receiving filter 103 and the second receiving filter 105 arrival the one 3dB electric bridges 101, this two paths of signals is by the synthetic road signal of a 3dB electric bridge 101 from port 2 outputs, and therefore the first base station BTS 1 can all receive secondary signal.
When the second base station BTS 2 is launched the 3rd signal, the 3rd signal is by port 8 inputs of the 2nd 3dB electric bridge 106 and from port 5 and port 6 output two paths of signals, because this two paths of signals all cannot pass through the first emission filter 102, the first receiving filter 103, the second emission filter 104 and the second receiving filter 105, two paths of signals is totally reflected to port 7 from port 5 and port 6 and outputs to antenna ANT, and therefore the second base station BTS 2 is launched the 3rd signal and can all from antenna ANT port, be exported.In like manner, when antenna ANT receives the 4th signal, this signal is divided into two paths of signals respectively from port 5 and port 6 outputs by the 2nd 3dB electric bridge 106, because this two paths of signals all cannot pass through the first emission filter 102, the first receiving filter 103, the second emission filter 104 and the second receiving filter 105, two paths of signals is totally reflected to port 8 from port 5 and port 6 and outputs at the second base station BTS 2, and therefore the second base station BTS 2 can all receive the 4th signal.
Therefore, the one 3dB electric bridge 101 and the 2nd 3dB electric bridge 106 play signal and distribute Yu He road function, make the signal of the first base station BTS 1 and the second base station BTS 2 outputs synthesize and export by antenna ANT, the signal that antenna ANT receives can be reasonably allocated to the first base station BTS 1 and the second base station BTS 2.
The first emission filter 102, the first receiving filter 103, the second emission filter 104 and the second receiving filter 105 are respectively the filter of different channels.Like this, in prior art, signal combiner 10 can realize the reception of the first base station BTS 1 and the reception of transmitting and the second base station BTS 2 and transmitting and shares an antenna ANT and transmit, and the reception signal of the first base station BTS 1 and transmit and the reception signal of the second base station BTS 2 and transmit between do not interfere with each other.
Yet, in prior art, signal combiner 10 need to adopt four diverse filters (i.e. the first emission filter 102, the first receiving filter 103, the second emission filter 104 and the second receiving filter 105) to realize, because the otherness of four filters is large, be difficult to debugging, and increased processing cost.
Summary of the invention
The problem that the embodiment of the present invention solves is to provide a kind of multiplefrequency mixer, to solve signal combiner in prior art, adopts four diverse filters, is difficult to debugging, and has increased the problem of processing cost.
For solving the problems of the technologies described above, the technical scheme that the embodiment of the present invention adopts is: a kind of multiplefrequency mixer is provided, and it comprises: transmitting combining unit and reception mixer, and transmitting combining unit and reception mixer comprise respectively the first filter and the second filter; The input port of the first filter is connected by quarter-wave tap line with the resonator in its first chamber, and the first filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber; The input port of the second filter is connected by quarter-wave tap line with the resonator in its first chamber, and the second filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber; The input port of the first filter is connected by quatrter-wavelength line with the input port of the second filter, and the output port of the first filter is connected by quatrter-wavelength line with the output port of the second filter; Between the first chamber of the first filter and the first chamber of the second filter, be provided with signal cross coupling window, between the tail chamber of the first filter and the tail chamber of the second filter, be provided with signal cross coupling window.
For solving the problems of the technologies described above, another technical scheme that the embodiment of the present invention adopts is: a kind of transmitting combining unit is provided, and it comprises the first filter and the second filter; The input port of the first filter is connected by quarter-wave tap line with the resonator in its first chamber, and the first filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber; The input port of the second filter is connected by quarter-wave tap line with the resonator in its first chamber, and the second filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber; The input port of the first filter is connected by quatrter-wavelength line with the input port of the second filter, and the output port of the first filter is connected by quatrter-wavelength line with the output port of the second filter; Between the first chamber of the first filter and the first chamber of the second filter, be provided with signal cross coupling window, between the tail chamber of the first filter and the tail chamber of the second filter, be provided with signal cross coupling window.
For solving the problems of the technologies described above, another technical scheme that the embodiment of the present invention adopts is: a kind of reception mixer is provided, and it comprises the first filter and the second filter; The input port of the first filter is connected by quarter-wave tap line with the resonator in its first chamber, and the first filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber; The input port of the second filter is connected by quarter-wave tap line with the resonator in its first chamber, and the second filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber; The input port of the first filter is connected by quatrter-wavelength line with the input port of the second filter, and the output port of the first filter is connected by quatrter-wavelength line with the output port of the second filter; Between the first chamber of the first filter and the first chamber of the second filter, be provided with signal cross coupling window, between the tail chamber of the first filter and the tail chamber of the second filter, be provided with signal cross coupling window.
For solving the problems of the technologies described above, another technical scheme that the embodiment of the present invention adopts is: a kind of electric bridge for mixer is provided, it comprises the first filter and the second filter and is connected to the first filter and the electric bridge at the second filter two ends, the first filter and the second filter comprise respectively the first port, the second port, the first cavity being connected with the first port and the second cavity being connected with the second port, the first port of the first filter is connected by quarter-wave tap line with the resonator in its first cavity, the first port of the second filter is connected by quarter-wave tap line with the resonator in its first cavity, the first port of the first filter is connected by quatrter-wavelength line with the first port of the second filter, between the first cavity of the first filter and the first cavity of the second filter, be provided with signal cross coupling window, the second port of the first filter is connected by quarter-wave tap line with the resonator in its second cavity, and the second port of the second filter is connected by quarter-wave tap line with the resonator in its second cavity, the second port of the first filter is connected by quatrter-wavelength line with the second port of the second filter, between the second cavity of the first filter and the second cavity of the second filter, be provided with signal cross coupling window, wherein, electric bridge comprises quarter-wave tap line, quatrter-wavelength line and signal cross coupling window.
The invention has the beneficial effects as follows: the situation that is different from prior art, multiplefrequency mixer provided by the invention utilizes the quatrter-wavelength line at two ends, the version of quarter-wave tap line and cross-couplings window common combination replaces two 3dB electric bridges, and then four signals realizing the first base station and the second base station share an antenna port, and make mutually to isolate and do not interfere with each other between four signals, reduce production costs, in addition, the present invention adopts two structures and the on all four filter of technical indicator as mixer, be easier to debugging, and then reduced processing cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the equivalent circuit diagram of signal combiner in prior art;
Fig. 2 is the equivalent circuit diagram of the first embodiment of multiplefrequency mixer of the present invention;
Fig. 3 is the passband schematic diagram of transmitting combining unit in the first embodiment of multiplefrequency mixer of the present invention;
Fig. 4 receives the passband schematic diagram of mixer in the first embodiment of multiplefrequency mixer of the present invention;
Fig. 5 receives the structural representation of mixer in the first embodiment of multiplefrequency mixer of the present invention;
Fig. 6 is the structural representation of transmitting combining unit in the first embodiment of multiplefrequency mixer of the present invention;
Fig. 7 is the equivalent circuit diagram of the second embodiment of multiplefrequency mixer of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
Refer to Fig. 2, Fig. 2 is the equivalent circuit diagram of the first embodiment of multiplefrequency mixer of the present invention.As shown in Figure 2, the multiplefrequency mixer 20 that the present embodiment discloses comprises: the first base station 21, the second base station 22, transmitting combining unit 23, reception mixer 24, antenna 25 and load 26.
In the embodiment of the present invention, transmitting combining unit 23 comprises the first emission filter 231 and the second emission filter 232, the input port 2311 of the first emission filter is connected by quarter-wave tap line 27 with the resonator 2314 in the first first chamber of emission filter 231, and the output port 2312 of the first emission filter is connected by quarter-wave tap line 27 with the resonator 2313 in the first emission filter tail chamber.The input port 2321 of the second emission filter is connected by quarter-wave tap line 27 with the resonator 2324 in the first chamber of the second emission filter, and the output port 2322 of the second emission filter is connected by quarter-wave tap line 27 with the resonator 2323 in the second emission filter tail chamber.Wherein, the input port 2311 of the first emission filter is connected by quatrter-wavelength line 28 with the input port 2321 of the second emission filter, and the output port 2312 of the first emission filter is connected by quatrter-wavelength line 28 with the output port 2322 of the second emission filter.Between the first chamber of the first emission filter 231 and the first chamber of the second emission filter 232, be provided with signal cross coupling window, so that the resonator 2324 in the resonator 2314 in the first chamber of the first emission filter and the first chamber of the second emission filter produces cross-couplings.Between the tail chamber of the first emission filter 231 and the tail chamber of the second emission filter 232, be provided with signal cross coupling window, so that the resonator 2323 in the resonator 2313 in the first emission filter tail chamber and the second emission filter tail chamber produces cross-couplings.
In the embodiment of the present invention, receive mixer 24 and comprise the first receiving filter 241 and the second receiving filter 242, the input port 2411 of the first receiving filter is connected by quarter-wave tap line 27 with the resonator 2413 in the first chamber of the first receiving filter, and the output port 2412 of the first receiving filter is connected by quarter-wave tap line 27 with the resonator 2414 in the first receiving filter tail chamber.The input port 2421 of the second receiving filter is connected by quarter-wave tap line 27 with the resonator 2423 in the first chamber of the second receiving filter, and the output port 2422 of the second receiving filter is connected by quarter-wave tap line 27 with the resonator 2424 in the second receiving filter tail chamber.Wherein, the input port 2411 of the first receiving filter is connected by quatrter-wavelength line 28 with the input port 2421 of the second receiving filter, and the output port 2412 of the first receiving filter is connected by quatrter-wavelength line 28 with the output port 2422 of the second receiving filter.Between the first chamber of the first receiving filter 241 and the first chamber of the second receiving filter 242, be provided with signal cross coupling window, so that the resonator 2423 in the resonator 2413 in the first chamber of the first receiving filter and the first chamber of the second receiving filter produces cross-couplings.Between the tail chamber of the first receiving filter 241 and the tail chamber of the second receiving filter 242, be provided with signal cross coupling window, so that the resonator 2424 in the resonator 2414 in the first receiving filter tail chamber and the second receiving filter tail chamber produces cross-couplings.
Further, the input port 2311 of the first emission filter is connected with the output port 2422 of the second receiving filter, and the output port 2312 of the first emission filter is connected with the input port 2421 of the second receiving filter.The first base station 21 ports are connected with the input port 2321 of the second emission filter, the second base station 22 ports are connected with the output port 2322 of the second emission filter, antenna 25 ports are connected with the input port 2411 of the first receiving filter, and load 26 ports are connected with the output port 2412 of the first receiving filter.
When first signal is launched in the first base station 21, first signal cannot be by receiving mixer 24, first signal is divided into two paths of signals by quatrter-wavelength line 28, this two paths of signals is inputted respectively the input port 2311 of the first emission filter and the input port 2321 of the second emission filter, and by the output port 2312 of the first emission filter and the output port 2322 of the second emission filter, two paths of signals is all outputed to antenna 25 from the output port 2312 of the first emission filter, therefore the first base station 21 launch first signal can be all from antenna 25 outputs.In like manner, when antenna 25 receives secondary signal, secondary signal cannot be passed through transmitting combining unit 23, secondary signal is divided into two paths of signals by quatrter-wavelength line 28, this two paths of signals is inputted respectively the input port 2411 of the first receiving filter and the input port 2421 of the second receiving filter, and by the output port 2412 of the first receiving filter and the output port 2422 of the second receiving filter, two paths of signals is all outputed to the first base station 21 from the output port 2422 of the second receiving filter, therefore the first base station 21 can all receive secondary signal.
When the 3rd signal is launched in the second base station 22, the 3rd signal cannot be by transmitting combining unit 23 and reception mixer 24, the 3rd signal is by quatrter-wavelength line 28 input aerial 25 ports, therefore the second base station 22 launch the 3rd signal can be all from antenna 25 outputs.In like manner, when antenna 25 receives the 4th signal, the 4th signal cannot be divided into two paths of signals by quatrter-wavelength line 28 by transmitting combining unit 23, the four signals, two paths of signals is transmitted into the input 2421 of the second receiving filter entirely, so that the 4th signal is all inputted the second base station 22.
In the embodiment of the present invention, quatrter-wavelength line 28 is 50 ohmage quatrter-wavelength lines 28, and the centre frequency of quatrter-wavelength line 28 is identical with the centre frequency of the first emission filter 231 or the second emission filter 232 or the first receiving filter 241 or the second receiving filter 242.The first emission filter 231 and the second emission filter 232 indexs and structure are in full accord, and the first receiving filter 241 and the second receiving filter 242 indexs and structure are in full accord.Wherein, the transmitted passband of the first emission filter 231 and the second emission filter 232 is: 930MHz-945MHz, as shown in Figure 3.The received passband of the first receiving filter 241 and the second receiving filter 242 is: 885MHz-900MHz, as shown in Figure 4.From Fig. 3 and Fig. 4, can draw, adopt the multiplefrequency mixer 20 in the embodiment of the present invention also can reach the effect of signal combiner 10 in prior art.
Particularly, Fig. 5 receives the structural representation of mixer in the first embodiment of multiplefrequency mixer of the present invention.As shown in Figure 5, the two-port up and down that receives mixer 24 left sides corresponds respectively to the input 2411 of the first receiving filter and the input 2421 of the second receiving filter, and the two-port up and down that receives mixer 24 the right corresponds respectively to the output port 2412 of the first receiving filter and the output port 2422 of the second receiving filter.Wherein, two inputs that receive mixer 24 connect by quatrter-wavelength line 28, two resonators that are positioned at reception mixer 24 first chambeies all connect respectively at two input ports by quarter-wave tap line 27, and produce cross-couplings by cross-couplings window.Known according to electromagnetic transmission theory, the version of the cross-couplings window common combination in figure between quatrter-wavelength line 28, quarter-wave tap line 27 and first chamber, is equivalent to a 3dB electric bridge.Two outputs that receive mixer 24 connect by quatrter-wavelength line 28, two resonators that are positioned at reception mixer 24 tail chambeies all connect respectively at two output ports by quarter-wave tap line 27, and produce cross-couplings by cross-couplings window.Known according to electromagnetic transmission theory, the version of the cross-couplings window common combination in figure between quatrter-wavelength line 28, quarter-wave tap line 27 and tail chamber, is equivalent to a 3dB electric bridge.Therefore, the right and left input/output structure of reception mixer 24 is equivalent to respectively two 3dB electric bridges.In addition, at the cross-couplings window place receiving between 24 two first chambeies of mixer, be provided with tuning screw 243, at the cross-couplings window place receiving between 24 two tail chambeies of mixer, be provided with tuning screw 244.
Fig. 6 is the structural representation of transmitting combining unit in the first embodiment of multiplefrequency mixer of the present invention.As shown in Figure 6, the two-port up and down on the transmitting combining unit left side corresponds respectively to the input 2311 of the first emission filter and the input 2321 of the second emission filter, and the two-port up and down on transmitting combining unit the right corresponds respectively to the output 2312 of the first emission filter and the output 2322 of the second emission filter.Wherein, two inputs of transmitting combining unit connect by quatrter-wavelength line 28, two resonators that are positioned at the first chamber of transmitting combining unit all connect respectively at two input ports by quarter-wave tap line 27, and produce cross-couplings by cross-couplings window.Known according to electromagnetic transmission theory, the version of the cross-couplings window common combination in figure between quatrter-wavelength line 28, quarter-wave tap line 27 and first chamber, is equivalent to a 3dB electric bridge.Two outputs of transmitting combining unit connect by quatrter-wavelength line 28, and two resonators that are positioned at transmitting combining unit tail chamber all connect respectively at two output ports by quarter-wave tap line 27, and produce cross-couplings by cross-couplings window.Known according to electromagnetic transmission theory, the version of the cross-couplings window common combination in figure between quatrter-wavelength line 28, quarter-wave tap line 27 and tail chamber, is equivalent to a 3dB electric bridge.Therefore, the right and left input/output structure of transmitting combining unit is equivalent to respectively two 3dB electric bridges.In addition, the cross-couplings window place between 23 two first chambeies of transmitting combining unit is provided with tuning screw 233, and the cross-couplings window place between 23 two tail chambeies of transmitting combining unit is provided with tuning screw 234.
The multiplefrequency mixer 20 that the embodiment of the present invention discloses utilizes the version of quatrter-wavelength line 28, quarter-wave tap line 27 and the cross-couplings window common combination at two ends, be equivalent to four 3dB electric bridges, four signals can realizing the first base station 21 and the second base station 22 share an antenna port, and make mutually to isolate and do not interfere with each other between four signals.Than signal combiner 10 of the prior art, the multiplefrequency mixer 20 that the embodiment of the present invention discloses is not additionally used two 3dB electric bridges, and utilizes two filter with same frequency as mixer, is easy to debugging, and then has reduced processing cost.In addition, the multiplefrequency mixer 20 that the embodiment of the present invention discloses, by the cross-couplings that regulates tuning screw 233, tuning screw 234, tuning screw 243 and tuning screw 244 to regulate transmitting combining unit 23 and receive mixer 24, is easier to debugging.
Embodiment bis-
Refer to Fig. 7, Fig. 7 is the equivalent circuit diagram of the second embodiment of multiplefrequency mixer of the present invention, and the multiplefrequency mixer 30 that the present embodiment discloses comprises: the first base station end 31, the second base station end 32, transmitting combining unit 33, reception mixer 34, antenna end 35 and load end 36.
In embodiments of the present invention, transmitting combining unit 33 comprises the first emission filter 331, the second emission filter 332 and is connected to the first emission filter 331 and first electric bridge 333 at the second emission filter 332 two ends and the second electric bridge 334.The input port of the first emission filter 331 is connected with the port one 1 of the first electric bridge 333, the output port of the first emission filter 331 is connected with the port one 3 of the second electric bridge 334, the input port of the second emission filter 332 is connected with the port one 2 of the first electric bridge 333, and the output port of the second emission filter 332 is connected with the port one 4 of the second electric bridge 334.Receiving mixer 34 comprises the first receiving filter 341, the second receiving filter 342 and is connected to the first receiving filter 341 and the 3rd electric bridge 343 at the second receiving filter 342 two ends and the 4th electric bridge 344.The input port of the first receiving filter 341 is connected with the port 5 of the 3rd electric bridge 343, the output port of the first receiving filter 341 is connected with the port 3 of the 4th electric bridge 344, the input port of the second receiving filter 342 is connected with the port 6 of the 3rd electric bridge 343, and the output port of the second receiving filter 342 is connected with the port 4 of the 4th electric bridge 344.Wherein, index and the structure of the first emission filter 331 and the second emission filter 332 are in full accord, and index and the structure of the first receiving filter 341 and the second receiving filter 342 are in full accord.
Particularly, the first base station end 31 is connected with the port one 0 of the first electric bridge 333, and the second base station end 32 is connected with the port one 6 of the second electric bridge 334, and antenna end 35 is connected with the port 7 of the 3rd electric bridge 343, and load end 36 is connected with the port one of the 4th electric bridge 344.The port 9 of the first electric bridge 333 is connected with the port 2 of the 4th electric bridge 344, and the port one 5 of the second electric bridge 334 is connected with the port 8 of bridge 343 thirdly.
The signal of the first base station end 31 transmittings is divided into two signals through the first electric bridge 333, these two signals are inputted respectively the first emission filter 331 and the second emission filter 332, the first emission filter 331 and the second emission filter 332 output to the second electric bridge 334 by two signals, the second electric bridge 334 closes road by two signals and outputs to port one 5, and last signal is transferred to antenna end 35 by the 3rd electric bridge 343.The signal of the second base station end 32 transmittings is transferred to antenna end 35 through the second electric bridge 334 and the 3rd electric bridge 343.
The reception signal of the first base station end 31 being transmitted by antenna end 35, this reception signal is divided into two by the 3rd electric bridge 343 and receives signal, these two signals are inputted respectively the first receiving filter 341 and the second receiving filter 342, the first receiving filter 341 and the second receiving filter 342 receive signal by two and output to the 4th electric bridge 344, the 4th electric bridge 344 closes road by two reception signals and outputs to port 2, and finally this reception signal is transferred to the first base station end 31 by the first electric bridge 333.The reception signal of the second base station end 32 being transmitted by antenna end 35, is transferred to the second base station end 32 by the 3rd electric bridge 343 and the second electric bridge 334.
The multiplefrequency mixer 30 that the embodiment of the present invention discloses utilizes four 3dB electric bridges, transmitting combining unit 33 and receives mixer 34, four signals can realizing the first base station end 31 and the second base station end 32 share an antenna end 35, and make mutually to isolate and do not interfere with each other between four signals.Than signal combiner 10 of the prior art, the multiplefrequency mixer 30 that the embodiment of the present invention discloses utilizes two filter with same frequency as mixer, is easy to debugging, and then has reduced processing cost.
In sum, people from this area technical staff easily understand, multiplefrequency mixer utilization provided by the invention receives mixer and transmitting combining unit is realized the shared antenna port of four signals of the first base station and the second base station, and make mutually to isolate and do not interfere with each other between four signals, in addition, the present invention adopts two structures and the on all four filter of technical indicator as mixer, is easier to debugging, and then has reduced processing cost.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (11)
1. a multiplefrequency mixer, is characterized in that, comprises transmitting combining unit and receives mixer, and described transmitting combining unit and described reception mixer comprise respectively the first filter and the second filter;
The input port of described the first filter is connected by quarter-wave tap line with the resonator in its first chamber, and described the first filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber;
The input port of described the second filter is connected by quarter-wave tap line with the resonator in its first chamber, and described the second filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber;
The input port of described the first filter is connected by quatrter-wavelength line with the input port of described the second filter, and the output port of described the first filter is connected by quatrter-wavelength line with the output port of described the second filter;
Between the first chamber of described the first filter and the first chamber of described the second filter, be provided with signal cross coupling window, between the tail chamber of described the first filter and the tail chamber of described the second filter, be provided with signal cross coupling window.
2. multiplefrequency mixer according to claim 1, is characterized in that, described transmitting is closed road and comprised the first emission filter and the second emission filter, and described reception mixer comprises the first receiving filter and the second receiving filter.
3. multiplefrequency mixer according to claim 2, it is characterized in that, the input port of described the first emission filter is connected with the output port of described the second receiving filter, and the output port of described the first emission filter is connected with the input port of described the second receiving filter.
4. multiplefrequency mixer according to claim 2, is characterized in that, the input port of described the second emission filter is connected with the first base station port, and the output port of described the second emission filter is connected with the second base station port.
5. multiplefrequency mixer according to claim 2, is characterized in that, the output port of described the first receiving filter is connected with load port, and the input port of described the first receiving filter is connected with antenna port.
6. multiplefrequency mixer according to claim 2, is characterized in that, described the first emission filter and the second emission filter index and structure are in full accord, and described the first receiving filter and the second receiving filter index and structure are in full accord.
7. multiplefrequency mixer according to claim 1, is characterized in that, the centre frequency of described quatrter-wavelength line is identical with the centre frequency of described receiving filter or described emission filter.
8. multiplefrequency mixer according to claim 1, is characterized in that, the cross-couplings window place between the first chamber of described the first filter and the first chamber of described the second filter is provided with tuning screw.
9. a transmitting combining unit, is characterized in that, described transmitting combining unit comprises the first filter and the second filter;
The input port of described the first filter is connected by quarter-wave tap line with the resonator in its first chamber, and described the first filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber;
The input port of described the second filter is connected by quarter-wave tap line with the resonator in its first chamber, and described the second filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber;
The input port of described the first filter is connected by quatrter-wavelength line with the input port of described the second filter, and the output port of described the first filter is connected by quatrter-wavelength line with the output port of described the second filter;
Between the first chamber of described the first filter and the first chamber of described the second filter, be provided with signal cross coupling window, between the tail chamber of described the first filter and the tail chamber of described the second filter, be provided with signal cross coupling window.
10. receive a mixer, it is characterized in that, described reception mixer comprises the first filter and the second filter;
The input port of described the first filter is connected by quarter-wave tap line with the resonator in its first chamber, and described the first filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber;
The input port of described the second filter is connected by quarter-wave tap line with the resonator in its first chamber, and described the second filter output mouth is connected by quarter-wave tap line with the resonator in its tail chamber;
The input port of described the first filter is connected by quatrter-wavelength line with the input port of described the second filter, and the output port of described the first filter is connected by quatrter-wavelength line with the output port of described the second filter;
Between the first chamber of described the first filter and the first chamber of described the second filter, be provided with signal cross coupling window, between the tail chamber of described the first filter and the tail chamber of described the second filter, be provided with signal cross coupling window.
11. 1 kinds of electric bridges for mixer, it is characterized in that, described mixer comprises the first filter and the second filter and the electric bridge that is connected to described the first filter and described the second filter two ends, described the first filter comprises respectively the first port, the second port, the first cavity being connected with described the first port and the second cavity being connected with described the second port with the second filter
The first port of described the first filter is connected by quarter-wave tap line with the resonator in its first cavity, and the first port of described the second filter is connected by quarter-wave tap line with the resonator in its first cavity;
The first port of described the first filter is connected by quatrter-wavelength line with the first port of described the second filter;
Between the first cavity of described the first filter and the first cavity of described the second filter, be provided with signal cross coupling window;
The second port of described the first filter is connected by quarter-wave tap line with the resonator in its second cavity, and the second port of described the second filter is connected by quarter-wave tap line with the resonator in its second cavity;
The second port of described the first filter is connected by quatrter-wavelength line with the second port of described the second filter;
Between the second cavity of described the first filter and the second cavity of described the second filter, be provided with signal cross coupling window;
Wherein, described electric bridge comprises described quarter-wave tap line, described quatrter-wavelength line and described signal cross coupling window.
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| CN103035991B (en) * | 2012-12-26 | 2015-09-09 | 成都天奥电子股份有限公司 | The microwave radio relay communication combiner system that a kind of Insertion Loss compensates |
| CN103972629B (en) * | 2014-04-14 | 2016-11-23 | 上海华为技术有限公司 | A kind of combiner, base station, signal close road system and method for transmitting signals |
| CN108054479A (en) * | 2017-10-25 | 2018-05-18 | 苏州大学 | Integrated multi-frequency multi-system combiner |
| CN109841937A (en) * | 2019-04-04 | 2019-06-04 | 江苏德是和通信科技有限公司 | A kind of bridge-type synthesizer |
| CN113054356A (en) * | 2019-12-27 | 2021-06-29 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
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