CN102364749A - Multi-frequency combiner - Google Patents
Multi-frequency combiner Download PDFInfo
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- CN102364749A CN102364749A CN2011102981431A CN201110298143A CN102364749A CN 102364749 A CN102364749 A CN 102364749A CN 2011102981431 A CN2011102981431 A CN 2011102981431A CN 201110298143 A CN201110298143 A CN 201110298143A CN 102364749 A CN102364749 A CN 102364749A
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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 invention relates to the mobile communication technology field, particularly a kind of multiplefrequency mixer.
Background technology
In the application of mobile communication base station system; For reaching the purpose of simplified system design; The shared usually cover antenna of the reception/transmitting terminal of two cover base stations is brought in and is realized reception or the function that transmits; Do not disturb mutually for realizing this function and reaching the reception of two cover base stations and transmit, the mobile communication base station system of prior art adopts 3dB electric bridge and band pass filter to make up the signal combiner of completion.
See also Fig. 1, Fig. 1 is the equivalent circuit diagram of signal combiner in the prior art.As shown in Figure 1, signal combiner 10 comprises in the prior art: first base station BTS 1 (Base Transceiver Station), second base station BTS 2, a 3dB electric bridge 101, first emission filter 102, first receiving filter 103, second emission filter 104, second receiving filter 105, the 2nd 3dB electric bridge 106, load LAOD and antenna ANT.Wherein, The one 3dB electric bridge 101 and the 2nd 3dB electric bridge 106 can be divided into two constant amplitudes and have the signal of 90 ° of phase differences each other with an input signal; Do not disturb mutually with the reception signal to isolate the signal between first base station BTS 1 and second base station BTS 2, to make the emission of winning between the base station BTS 1 and second base station BTS 2.
When first base station BTS 1 is launched first signal; First signal is from port 2 inputs of a 3dB electric bridge 101; Export from the port 3 and the port 4 of a 3dB electric bridge 101 respectively through being divided into two paths of signals behind the 3dB electric bridge 101; This two paths of signals is respectively through corresponding first emission filter 102 and second emission filter 104; Respectively from 6 outputs of port 5 and port, from port 7 outputs, therefore launch first signal and can all export from antenna ANT port by first base station BTS 1 with synthetic one road signal of this two paths of signals for the 2nd 3dB electric bridge 106.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 through the 2nd 3dB electric bridge 106; And arriving the port 3 and the port 4 of a 3dB electric bridge 101 through first receiving filter 103 and second receiving filter 105, from port 2 outputs, therefore first base station BTS 1 can all receive secondary signal to this two paths of signals through a 3dB electric bridge 101 synthetic one road signals.
When second base station BTS 2 is launched the 3rd signal; The 3rd signal is through 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 can't be through first emission filter 102, first receiving filter 103, second emission filter 104 and 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 second base station BTS 2 is launched the 3rd signal and can all be exported from antenna ANT port.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 through the 2nd 3dB electric bridge 106; Because this two paths of signals all can't be through first emission filter 102, first receiving filter 103, second emission filter 104 and second receiving filter 105, two paths of signals is totally reflected to port 8 from port 5 and port 6 and outputs at second base station BTS 2, and therefore 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 allocation and close the road function; Make the signal of win base station BTS 1 and the output of second base station BTS 2 synthetic and through antenna ANT output, the signal that antenna ANT receives can reasonable distribution to first base station BTS 1 and second base station BTS 2.
Yet; Signal combiner 10 needs to adopt four diverse filters (i.e. first emission filter 102, first receiving filter 103, second emission filter 104 and second receiving filter 105) to realize in the prior art; Because the otherness of four filters is big; Be difficult to debugging, and increased processing cost.
Summary of the invention
The problem that the embodiment of the invention solves provides a kind of multiplefrequency mixer, and signal combiner adopts four diverse filters in the prior art to solve, and 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 invention adopts is: a kind of multiplefrequency mixer is provided, and it comprises: launch mixer and receive mixer, the emission mixer comprises first filter and second filter respectively with the reception mixer; The input port of first filter is connected through the quarter-wave tap line with resonator in its first chamber, and the first filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber; The input port of second filter is connected through the quarter-wave tap line with resonator in its first chamber, and the second filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber; The input port of first filter is connected through quatrter-wavelength line with the input port of second filter, and the output port of first filter is connected through quatrter-wavelength line with the output port of second filter; Be provided with the signal cross coupling window between the first chamber of first filter and the first chamber of second filter, be provided with the signal cross coupling window between the tail chamber of first filter and the tail chamber of second filter.
For solving the problems of the technologies described above; Another technical scheme that the embodiment of the invention adopts is: a kind of multiplefrequency mixer is provided; It comprises first base station end, second base station end, load end, antenna end, emission mixer and receives mixer that the emission mixer comprises first emission filter, second emission filter, is connected to first electric bridge and second electric bridge at first emission filter and the second emission filter two ends; Receive the 3rd electric bridge and the 4th electric bridge that mixer comprises first receiving filter, second receiving filter, is connected to first receiving filter and the second receiving filter two ends; Transmitting of first base station end outputs to first emission filter and second emission filter through first electric bridge; Be transferred to the 3rd electric bridge after the signal that second electric bridge is sent first emission filter and second emission filter closes the road through second electric bridge, be transferred to antenna end again; The order that transmits of second base station end is transferred to antenna port through second electric bridge and the 3rd electric bridge; First base station received signal that is transmitted by antenna end outputs to reception one filter and second receiving filter through the 4th electric bridge; Be transferred to first electric bridge after the signal that the 3rd electric bridge is sent first receiving filter and second receiving filter closes the road through the 4th electric bridge, be transferred to first base station end again; Second base station received signal order that is transmitted by antenna end is transferred to second base station end through the 3rd electric bridge and second electric bridge.
For solving the problems of the technologies described above, another technical scheme that the embodiment of the invention adopts is: a kind of emission mixer is provided, and it comprises first filter and second filter; The input port of first filter is connected through the quarter-wave tap line with resonator in its first chamber, and the first filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber; The input port of second filter is connected through the quarter-wave tap line with resonator in its first chamber, and the second filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber; The input port of first filter is connected through quatrter-wavelength line with the input port of second filter, and the output port of first filter is connected through quatrter-wavelength line with the output port of second filter; Be provided with the signal cross coupling window between the first chamber of first filter and the first chamber of second filter, be provided with the signal cross coupling window between the tail chamber of first filter and the tail chamber of second filter.
For solving the problems of the technologies described above, another technical scheme that the embodiment of the invention adopts is: a kind of reception mixer is provided, and it comprises first filter and second filter; The input port of first filter is connected through the quarter-wave tap line with resonator in its first chamber, and the first filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber; The input port of second filter is connected through the quarter-wave tap line with resonator in its first chamber, and the second filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber; The input port of first filter is connected through quatrter-wavelength line with the input port of second filter, and the output port of first filter is connected through quatrter-wavelength line with the output port of second filter; Be provided with the signal cross coupling window between the first chamber of first filter and the first chamber of second filter, be provided with the signal cross coupling window between the tail chamber of first filter and the tail chamber of second filter.
For solving the problems of the technologies described above; Another technical scheme that the embodiment of the invention adopts is: a kind of electric bridge that is used for mixer is provided; It comprises first filter and second filter; First filter comprises first port, second port and first cavity that is connected with first port respectively with second filter; First port of first filter is connected through the quarter-wave tap line with the interior resonator of its first cavity, and first port of second filter is connected through the quarter-wave tap line with the interior resonator of its first cavity; First port of first filter is connected through quatrter-wavelength line with first port of second filter; Be provided with the signal cross coupling window between first cavity of first filter and first cavity of second filter.
The invention has the beneficial effects as follows: the situation that is different from prior art; Multiplefrequency mixer provided by the invention utilizes the version of the common combination of quatrter-wavelength line, quarter-wave tap line and cross-couplings window at two ends to replace two 3dB electric bridges; And then realize antenna port of four signal commons of first base station and second base station, and make that mutual isolation is not disturbed mutually 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, is easier to debugging, and then has reduced processing cost.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below, and obviously, the accompanying drawing in describing below only is some embodiments of the present invention; For those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the equivalent circuit diagram of signal combiner in the prior art;
Fig. 2 is the equivalent circuit diagram of first embodiment of multiplefrequency mixer of the present invention;
Fig. 3 is the passband sketch map of emission mixer among first embodiment of multiplefrequency mixer of the present invention;
Fig. 4 is the passband sketch map that receives mixer among first embodiment of multiplefrequency mixer of the present invention;
Fig. 5 is the structural representation that receives mixer among first embodiment of multiplefrequency mixer of the present invention;
Fig. 6 is the structural representation of emission mixer among first embodiment of multiplefrequency mixer of the present invention;
Fig. 7 is the equivalent circuit diagram of second embodiment of multiplefrequency mixer of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
See also Fig. 2, Fig. 2 is the equivalent circuit diagram of first embodiment of multiplefrequency mixer of the present invention.As shown in Figure 2, the multiplefrequency mixer 20 that present embodiment disclosed comprises: first base station 21, second base station 22, emission mixer 23, receive mixer 24, antenna 25 and load 26.
In the embodiment of the invention; Emission mixer 23 comprises first emission filter 231 and second emission filter 232; The input port 2311 of first emission filter is connected through quarter-wave tap line 27 with resonator 2313 in first emission filter, the 231 first chambeies, and the output port 2312 of first emission filter is connected through quarter-wave tap line 27 with resonator 2314 in the first emission filter tail chamber.Resonator 2323 in the first chamber of the input port 2321 of second emission filter and second emission filter is connected through quarter-wave tap line 27, and the output port 2322 of second emission filter is connected through quarter-wave tap line 27 with resonator 2324 in the second emission filter tail chamber.Wherein, The input port 2311 of first emission filter is connected through quatrter-wavelength line 28 with the input port 2321 of second emission filter, and the output port 2312 of first emission filter is connected through quatrter-wavelength line 28 with the output port 2322 of second emission filter.Between the first chamber of the first chamber of first emission filter 231 and second emission filter 232, be provided with the signal cross coupling window, so that the resonator 2323 generation cross-couplings in the resonator 2313 in the first chamber of first emission filter and second emission filter head chamber.Between the tail chamber of the tail chamber of first emission filter 231 and second emission filter 232, be provided with the signal cross coupling window, so that the resonator 2324 in the resonator 2314 in the first emission filter tail chamber and the second emission filter tail chamber produces cross-couplings.
In the embodiment of the invention; Receive mixer 24 and comprise first receiving filter 241 and second receiving filter 242; Resonator 2413 in the first chamber of the input port 2411 of first receiving filter and first receiving filter is connected through quarter-wave tap line 27, and the output port 2412 of first receiving filter is connected through quarter-wave tap line 27 with resonator 2414 in the first receiving filter tail chamber.Resonator 2423 in the first chamber of the input port 2421 of second receiving filter and second receiving filter is connected through quarter-wave tap line 27, and the output port 2422 of second receiving filter is connected through quarter-wave tap line 27 with resonator 2424 in the second receiving filter tail chamber.Wherein, The input port 2411 of first receiving filter is connected through quatrter-wavelength line 28 with the input port 2421 of second receiving filter, and the output port 2412 of first receiving filter is connected through quatrter-wavelength line 28 with the output port 2422 of second receiving filter.Between the first chamber of the first chamber of first receiving filter 241 and second receiving filter 242, be provided with the signal cross coupling window, so that the resonator 2423 generation cross-couplings in the resonator 2413 in the first chamber of first receiving filter and second receiving filter head chamber.Between the tail chamber of the tail chamber of first receiving filter 241 and second receiving filter 242, be provided with the 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 first emission filter is connected with the input port 2421 of second receiving filter, and the output port 2312 of first emission filter is connected with the output port 2422 of second receiving filter.First base station, 21 ports are connected with the input port 2321 of second emission filter; Second base station, 22 ports are connected with the output port 2322 of second emission filter; Antenna 25 ports are connected with the input port 2411 of first receiving filter, and load 26 ports are connected with the output port 2412 of first receiving filter.
When first signal is launched in first base station 21; First signal can't be through receiving mixer 24; First signal is divided into two paths of signals through quatrter-wavelength line 28; This two paths of signals is imported the input port 2311 of first emission filter and the input port 2321 of second emission filter respectively; And through the output port 2312 of first emission filter and the output port 2322 of second emission filter two paths of signals is all outputed to antenna 25 from the output port 2312 of first emission filter, therefore 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 can't be through emission mixer 23; Secondary signal is divided into two paths of signals through quatrter-wavelength line 28; This two paths of signals is imported the input port 2411 of first receiving filter and the input port 2421 of second receiving filter respectively, and through the output port 2411 of first receiving filter and the output port 2422 of second receiving filter two paths of signals is all outputed to first base station 21 from the output port 2422 of second receiving filter, and therefore first base station 21 can all receive secondary signal.
When the 3rd signal is launched in second base station 22; The 3rd signal can't be through emission mixer 23 and reception mixer 24; The 3rd signal is through quatrter-wavelength line 28 input aerials 25 ports, therefore second base station 22 launch the 3rd signal can be all from antenna 25 outputs.In like manner; When antenna 25 received the 4th signal, the 4th signal can't be divided into two paths of signals through quatrter-wavelength line 28 through emission mixer 23, the four signals; Two paths of signals is transmitted into the input 2421 of second receiving filter entirely, so that the 4th signal is all imported second base station 22.
In the embodiment of the 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 first emission filter 231 or second emission filter 232 or first receiving filter 241 or second receiving filter 242.First emission filter 231 and second emission filter, 232 indexs and structure are in full accord, and first receiving filter 241 and second receiving filter, 242 indexs and structure are in full accord.Wherein, the transmitted passband of first emission filter 231 and second emission filter 232 is: 930MHz-945MHz, and as shown in Figure 3.The received passband of first receiving filter 241 and second receiving filter 242 is: 885MHz-900MHz, and as shown in Figure 4.Can draw from Fig. 3 and Fig. 4, the multiplefrequency mixer 20 in the employing embodiment of the invention also can reach the effect of signal combiner 10 in the prior art.
Particularly, Fig. 5 is the structural representation that receives mixer among 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 first receiving filter and the input 2421 of second receiving filter, and the two-port up and down that receives mixer 24 the right corresponds respectively to the output port 2412 of first receiving filter and the output port 2422 of second receiving filter.Wherein, Two inputs that receive mixer 24 connect through quatrter-wavelength line 28; Be positioned at two resonators that receive mixer 24 first chambeies and all connect respectively at two input ports, and produce cross-couplings through the cross-couplings window through quarter-wave tap line 27.Can know that according to the electromagnetic transmission theory version by the common combination of the cross-couplings window between quatrter-wavelength line 28, quarter-wave tap line 27 and the first chamber among the figure is equivalent to a 3dB electric bridge.Two outputs that receive mixer 24 connect through quatrter-wavelength line 28; Be positioned at two resonators that receive mixer 24 tail chambeies and all connect respectively at two output ports, and produce cross-couplings through the cross-couplings window through quarter-wave tap line 27.Can know that according to the electromagnetic transmission theory version by the common combination of the cross-couplings window between quatrter-wavelength line 28, quarter-wave tap line 27 and the tail chamber among the figure is equivalent to a 3dB electric bridge.Therefore, the right and left input/output structure of reception mixer 24 is equivalent to two 3dB electric bridges respectively.In addition, be provided with tuning screw rod 243, be provided with tuning screw rod 244 at the cross-couplings window place that receives between 24 two tail chambeies of mixer at the cross-couplings window place that receives between 24 two first chambeies of mixer.
Fig. 6 is the structural representation of emission mixer among first embodiment of multiplefrequency mixer of the present invention.As shown in Figure 6; The two-port up and down on the emission mixer left side corresponds respectively to the input 2311 of first emission filter and the input 2321 of second emission filter, and the two-port up and down on emission mixer the right corresponds respectively to the output 2312 of first emission filter and the output 2322 of second emission filter.Wherein, Two inputs of emission mixer connect through quatrter-wavelength line 28; Two resonators that are positioned at the first chamber of emission mixer all connect respectively at two input ports through quarter-wave tap line 27, and produce cross-couplings through the cross-couplings window.Can know that according to the electromagnetic transmission theory version by the common combination of the cross-couplings window between quatrter-wavelength line 28, quarter-wave tap line 27 and the first chamber among the figure is equivalent to a 3dB electric bridge.Two outputs of emission mixer connect through quatrter-wavelength line 28, and two resonators that are positioned at emission mixer tail chamber all connect respectively at two output ports through quarter-wave tap line 27, and produce cross-couplings through the cross-couplings window.Can know that according to the electromagnetic transmission theory version by the common combination of the cross-couplings window between quatrter-wavelength line 28, quarter-wave tap line 27 and the tail chamber among the figure is equivalent to a 3dB electric bridge.Therefore, the right and left input/output structure of emission mixer is equivalent to two 3dB electric bridges respectively.In addition, the cross-couplings window place between 23 two first chambeies of emission mixer is provided with tuning screw rod 233, and the cross-couplings window place between 23 two tail chambeies of emission mixer is provided with tuning screw rod 234.
The multiplefrequency mixer 20 that the embodiment of the invention disclosed utilizes the version of the common combination of quatrter-wavelength line 28, quarter-wave tap line 27 and cross-couplings window at two ends; Be equivalent to four 3dB electric bridges; Can realize antenna port of four signal commons of first base station 21 and second base station 22, and make that mutual isolation is not disturbed mutually between four signals.Than signal combiner 10 of the prior art, two 3dB electric bridges of the not extra use of the multiplefrequency mixer 20 that the embodiment of the invention disclosed, and utilize two filter with same frequency as mixer, be easy to debugging, and then reduced processing cost.In addition, the multiplefrequency mixer 20 that the embodiment of the invention disclosed through regulating the cross-couplings that tuning screw rod 233, tuning screw rod 234, tuning screw rod 243 and tuning screw rod 244 are regulated emission mixer 23 and received mixer 24, is easier to debugging.
Embodiment two
See also Fig. 7; Fig. 7 is the equivalent circuit diagram of second embodiment of multiplefrequency mixer of the present invention, and the multiplefrequency mixer 30 that present embodiment disclosed comprises: first base station end 31, second base station end 32, emission mixer 33, receive mixer 34, antenna end 35 and load end 36.
In embodiments of the present invention, emission mixer 33 comprises first emission filter 331, second emission filter 332 and is connected to first emission filter 331 and first electric bridge 333 at second emission filter, 332 two ends and second electric bridge 334.The input port of first emission filter 331 is connected with the port one 1 of first electric bridge 333; The output port of first emission filter 331 is connected with the port one 3 of second electric bridge 334; The input port of second emission filter 332 is connected with the port one 2 of first electric bridge 333, and the output port of second emission filter 332 is connected with the port one 4 of second electric bridge 334.Receiving mixer 34 comprises first receiving filter 341, second receiving filter 342 and is connected to first receiving filter 341 and the 3rd electric bridge 343 at second receiving filter, 342 two ends and the 4th electric bridge 344.The input port of first receiving filter 341 is connected with the port 5 of the 3rd electric bridge 343; The output port of first receiving filter 341 is connected with the port 3 of the 4th electric bridge 344; The input port of second receiving filter 342 is connected with the port 6 of the 3rd electric bridge 343, and the output port of second receiving filter 342 is connected with the port 4 of the 4th electric bridge 344.Wherein, the index and the structure of first emission filter 331 and second emission filter 332 are in full accord, and the index and the structure of first receiving filter 341 and second receiving filter 342 are in full accord.
Particularly, first base station end 31 is connected with the port one 0 of first electric bridge 333, and second base station end 32 is connected with the port one 6 of 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 first electric bridge 333 is connected with the port 2 of the 4th electric bridge 344, and the port one 5 of second electric bridge 334 is connected with the port 8 of bridge 343 thirdly.
The signal of first base station end, 31 emissions is divided into two signals through first electric bridge 333; These two signals are imported first emission filter 331 and second emission filter 332 respectively; First emission filter 331 and second emission filter 332 output to second electric bridge 334 with two signals; Second electric bridge 334 closes the road with two signals and outputs to port one 5, and last signal is transferred to antenna end 35 through the 3rd electric bridge 343.The signal of second base station end, 32 emissions is transferred to antenna end 35 through second electric bridge 334 and the 3rd electric bridge 343.
The reception signal of first base station end 31 that transmits by antenna end 35; This reception signal is divided into two through the 3rd electric bridge 343 and receives signal; These two signals are imported first receiving filter 341 and second receiving filter 342 respectively; First receiving filter 341 and second receiving filter 342 receive signals with two and output to the 4th electric bridge 344, the four electric bridges 344 and receive signals with two and close the road and output to port 2, and this reception signal is transferred to first base station end 31 through first electric bridge 333 at last.The reception signal of second base station end 32 that is transmitted by antenna end 35 is transferred to second base station end 32 through the 3rd electric bridge 343 and second electric bridge 334.
The multiplefrequency mixer 30 that the embodiment of the invention disclosed utilizes four 3dB electric bridges, emission mixer 33 and receives mixer 34; Can realize antenna end 35 of four signal commons of first base station end 31 and second base station end 32, and make that mutual isolation is not disturbed mutually between four signals.Than signal combiner 10 of the prior art, the multiplefrequency mixer 30 that the embodiment of the invention disclosed 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 understand easily, and multiplefrequency mixer utilization provided by the invention receives mixer and realizes antenna port of four signal commons of first base station and second base station with the emission mixer, and make that mutual isolation is not disturbed mutually 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 above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (12)
1. a multiplefrequency mixer is characterized in that, comprises the emission mixer and receives mixer, and said emission mixer and said reception mixer comprise first filter and second filter respectively;
The input port of said first filter is connected through the quarter-wave tap line with resonator in its first chamber, and the said first filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber;
The input port of said second filter is connected through the quarter-wave tap line with resonator in its first chamber, and the said second filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber;
The input port of said first filter is connected through quatrter-wavelength line with the input port of said second filter, and the output port of said first filter is connected through quatrter-wavelength line with the output port of said second filter;
Be provided with the signal cross coupling window between the first chamber of said first filter and the first chamber of said second filter, be provided with the signal cross coupling window between the tail chamber of said first filter and the tail chamber of said second filter.
2. multiplefrequency mixer according to claim 1 is characterized in that, said emission is closed the road and comprised first emission filter and second emission filter, and said reception mixer comprises first receiving filter and second receiving filter.
3. multiplefrequency mixer according to claim 2; It is characterized in that; The input port of said first emission filter is connected with the input port of said second receiving filter, and the output port of said first emission filter is connected with the output port of said second receiving filter.
4. multiplefrequency mixer according to claim 2 is characterized in that, the input port of said second emission filter is connected with first base station port, and the output port of said second emission filter is connected with second base station port.
5. multiplefrequency mixer according to claim 2 is characterized in that, the input port of said first receiving filter and load port, and the input port of said first receiving filter is connected with antenna port.
6. multiplefrequency mixer according to claim 2 is characterized in that, said first emission filter and the second emission filter index and structure are in full accord, and said 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 said quatrter-wavelength line is identical with the centre frequency of said receiving filter or said emission filter.
8. multiplefrequency mixer according to claim 1 is characterized in that, the cross-couplings window place between the first chamber of said first filter and the first chamber of said second filter is provided with tuning screw rod.
9. a multiplefrequency mixer is characterized in that, comprise first base station end, second base station end, load end, antenna end, emission mixer and receive mixer,
Said emission mixer comprises first emission filter, second emission filter, is connected to first electric bridge and second electric bridge at said first emission filter and the second emission filter two ends;
Said reception mixer comprises first receiving filter, second receiving filter, is connected to the 3rd electric bridge and the 4th electric bridge at said first receiving filter and the second receiving filter two ends;
Transmitting of said first base station end outputs to first emission filter and second emission filter through first electric bridge; Be transferred to the 3rd electric bridge after the signal that said second electric bridge is sent first emission filter and second emission filter closes the road through second electric bridge, be transferred to antenna end again;
The order that transmits of said second base station end is transferred to antenna port through second electric bridge and the 3rd electric bridge;
First base station received signal that is transmitted by said antenna end outputs to reception one filter and second receiving filter through the 4th electric bridge; Be transferred to first electric bridge after the signal that said the 3rd electric bridge is sent said first receiving filter and second receiving filter closes the road through the 4th electric bridge, be transferred to first base station end again;
Second base station received signal order that is transmitted by said antenna end is transferred to second base station end through the 3rd electric bridge and second electric bridge.
10. an emission mixer is characterized in that said emission mixer comprises first filter and second filter;
The input port of said first filter is connected through the quarter-wave tap line with resonator in its first chamber, and the said first filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber;
The input port of said second filter is connected through the quarter-wave tap line with resonator in its first chamber, and the said second filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber;
The input port of said first filter is connected through quatrter-wavelength line with the input port of said second filter, and the output port of said first filter is connected through quatrter-wavelength line with the output port of said second filter;
Be provided with the signal cross coupling window between the first chamber of said first filter and the first chamber of said second filter, be provided with the signal cross coupling window between the tail chamber of said first filter and the tail chamber of said second filter.
11. one kind receives mixer, it is characterized in that said reception mixer comprises first filter and second filter;
The input port of said first filter is connected through the quarter-wave tap line with resonator in its first chamber, and the said first filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber;
The input port of said second filter is connected through the quarter-wave tap line with resonator in its first chamber, and the said second filter output mouth is connected through the quarter-wave tap line with resonator in its tail chamber;
The input port of said first filter is connected through quatrter-wavelength line with the input port of said second filter, and the output port of said first filter is connected through quatrter-wavelength line with the output port of said second filter;
Be provided with the signal cross coupling window between the first chamber of said first filter and the first chamber of said second filter, be provided with the signal cross coupling window between the tail chamber of said first filter and the tail chamber of said second filter.
12. an electric bridge that is used for mixer is characterized in that, said mixer comprises first filter and second filter, and said first filter comprises first port, second port and first cavity that is connected with said first port respectively with second filter,
First port of said first filter is connected through the quarter-wave tap line with the interior resonator of its first cavity, and first port of said second filter is connected through the quarter-wave tap line with the interior resonator of its first cavity;
First port of said first filter is connected through quatrter-wavelength line with first port of said second filter;
Be provided with the signal cross coupling window between first cavity of said first filter and first cavity of said second filter.
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| CN102364749B (en) | 2014-02-19 |
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Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co., Ltd Address before: 518108 Guangdong city of Shenzhen province Baoan District alqun Shiyan road with rich industrial area 1-2 building Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. |