CN101262242B - N+1 dual frequency channel mixing method and its special channel mixer - Google Patents
N+1 dual frequency channel mixing method and its special channel mixer Download PDFInfo
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- CN101262242B CN101262242B CN2008100238457A CN200810023845A CN101262242B CN 101262242 B CN101262242 B CN 101262242B CN 2008100238457 A CN2008100238457 A CN 2008100238457A CN 200810023845 A CN200810023845 A CN 200810023845A CN 101262242 B CN101262242 B CN 101262242B
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Abstract
The invention relates to an N plus 1 double frequency combination method and a special combiner thereof. The N plus 1 double frequency combination method adopts signals passing through the combiner, wherein, N channel is frequency band A signal, and N is more than or equal to 2, and the other channel is frequency band B signals; N frequency band A band-pass wave filtering cavities are used for filtering the N channel frequency band A signals; one channel frequency B signals of the other channel are firstly divided into N channel frequency band B signals in the combiner, and are filtered through N frequency band B band-pass wave filtering cavities; the output signals of the N frequency band A band-pass wave filtering cavities and that of the N frequency band B band-pass wave filtering cavities are combined and then N channel A plus B signals are output. The special combiner adopting the method comprises N input channels of the frequency band A signals, an input channel of frequency band B signals, and N combining interfaces (N is more than or equal to 2). The N plus 1 double frequency combination method and a special combiner thereof of the invention overcome the defect that a plurality of 1 plus 1 dual frequency combiners are required to realize the combination of the N channel frequency band A signals and the one channel frequency band B signals.
Description
Technical field
The present invention relates to a kind of double frequency path combining method and special-purpose mixer thereof, relate in particular to a kind of N+1 double frequency path combining method and special-purpose mixer thereof.
Background technology
Along with the development of mobile communication technology, the mobile communication signal of multiband multisystem covers has become the technology that must consider.In such covering system, often the signal of frequency range A and the signal of frequency range B need be closed road output, to reach the purpose of shared passive antenna-feedback system.
Traditional dual-frequency channel merger considers that generally the form of two-way unification realizes closing the road, and promptly single channel frequency range a-signal and single channel frequency range B signal close the road, export antenna-feedback system to from closing road port.This path combining method is a 1+1 double frequency path combining method, uses the mixer of this path combining method to be the 1+1 dual-frequency channel merger.When same place has multichannel frequency range a-signal to export antenna-feedback system to, if carry out the road of closing of frequency range B signal, then need a plurality of 1+1 dual-frequency channel mergers to realize, the shortcoming of this path combining method is cost height, Insertion Loss index error, reliability is low, the installation area occupied is big, the engineering difficulty is big.
Summary of the invention
At existing problem in the prior art, the invention provides a kind of N road frequency range a-signal and single channel frequency range B signal in a mixer, realized and close the path combining method and the special-purpose mixer thereof on road, be about to N frequency range A bandpass filtering chamber and N frequency range B bandpass filtering chamber concentrates on same mixer interior path combining method and special-purpose mixer N 〉=2 thereof.
Technical scheme of the present invention is: a kind of N+1 double frequency path combining method is characterized in that: by the signal of mixer, the N road is the frequency range a-signal, and other one the tunnel is frequency range B signal; Use N frequency range A bandpass filtering chamber to carry out filtering for N road frequency range a-signal; Earlier be divided into N road frequency range B signal for one tunnel frequency range B signal, carry out filtering by N frequency range B bandpass filtering chamber again in mixer inside; N frequency range A bandpass filtering chamber output signal and N frequency range B bandpass filtering chamber output signal are closed road output N road A+B signal N 〉=2.Adopt the special-purpose mixer of the method, it is characterized in that: include the input channel of N frequency range a-signal, the input channel of a frequency range B signal is arranged, have N to close road port N 〉=2.Each input channel of frequency range A comprises bandpass filtering chamber, the coupled-wires of input port, input lead and frequency range A, and input port is connected to the bandpass filtering chamber of frequency range A via input lead, exports the corresponding road port that closes to via coupled-wires again; The input channel of frequency range B comprises bandpass filtering chamber, the coupled-wires of input port, input lead, electric bridge and frequency range B, input port is connected to electric bridge through input lead, be connected to the bandpass filtering chamber by lead again, export the corresponding road port that closes to by coupled-wires at last.Described electric bridge is made up of microstrip line and absorption resistance.Described special-purpose mixer also comprises tuning screw rod, and the frequency range a-signal is connected to output lead frequently and after the section B signal process filtering chamber filtering, is undertaken being connected to by output lead after frequency characteristic is selected by tuning screw rod simultaneously again and closes the road output port.
Beneficial effect: the present invention utilizes circuit and N frequency range B bandpass filtering chamber with one fen N of N frequency range A bandpass filtering chamber, frequency range B to concentrate on a technology in the mixer, exports the N road and closes road signal N 〉=2.Fundamentally solved when N road frequency range a-signal and one tunnel frequency range B signal closed the road, the shortcoming that needs a plurality of 1+1 dual-frequency channel mergers to realize reaches the purpose of saving cost, reducing Insertion Loss, improving reliability, reduce that area occupied is installed, reduce the engineering difficulty.
Figure of description
Application schematic diagram when Fig. 1 closes the road for traditional 1+1 double frequency;
Fig. 2 is an application schematic diagram of the present invention;
Fig. 3 is the schematic diagram of the embodiment of the invention 1;
Fig. 4 is the inside schematic diagram of the embodiment of the invention 1;
Fig. 5 is the front view of the embodiment of the invention 1;
Fig. 6 looks internal structural map for the master of the embodiment of the invention 1;
Fig. 7 looks internal cavity figure for the master of the embodiment of the invention 1;
Fig. 8 is the left view of the embodiment of the invention 1;
Fig. 9 is the rearview of the embodiment of the invention 1;
Figure 10 is the backsight internal structural map of the embodiment of the invention 1;
Figure 11 is the schematic diagram of the embodiment of the invention 2;
Figure 12 is the inside schematic diagram of the embodiment of the invention 2;
Figure 13 is the front view of the embodiment of the invention 2;
Figure 14 looks internal structural map for the master of the embodiment of the invention 2;
Figure 15 looks internal cavity figure for the master of the embodiment of the invention 2;
Figure 16 is the left view of the embodiment of the invention 2;
Figure 17 is the rearview of the embodiment of the invention 2;
Figure 18 is the backsight internal structural map of the embodiment of the invention 2.
Embodiment
Fig. 1, Fig. 2, wherein 1 is one tunnel frequency range B signal, and 2-a is the 1 tunnel frequency range a-signal, and 2-b is the 2 tunnel frequency range a-signal, and 2-n is a N road frequency range a-signal; 3-a the 1 the tunnel closes the road signal, and 3-b the 2 the tunnel closes the road signal, and 3-n is that the road signal is closed on the N road.
Fig. 2 realizes that N road frequency range a-signal (N 〉=2) and single channel frequency range B signal close output N road, road and close the road signal
N+1 double frequency of the present invention closes the step on road:
A) by the signal of mixer, the N road is the frequency range a-signal, and other one the tunnel is frequency range B signal.
B) use N frequency range A bandpass filtering chamber to carry out filtering for N road frequency range a-signal.
C) be divided into N road frequency range B signal in mixer inside earlier for one tunnel frequency range B signal, carry out filtering by N frequency range B bandpass filtering chamber again.
D) N frequency range A bandpass filtering chamber output signal and N frequency range B bandpass filtering chamber output signal are closed output N road, road A+B signal.
Hereinafter, as frequency range A, the working frequency range of cdma system is as frequency range B with the working frequency range of PHS system.Embodiment 1 is 2 road PHS and 1 road CDMA dual-frequency channel merger, and embodiment 2 is 4 road PHS and 1 road CDMA dual-frequency channel merger.Below with reference to drawings and Examples technical scheme of the present invention is described in detail.
Embodiment 1:
Fig. 3, Fig. 4, wherein 4 is CDMA, is frequency range B; 5-a is PHS1, and 5-b is PHS2, is frequency range A; 6-a is that the 1 road PHS+CDMA closes the road signal, and 6-b is that the 2 road PHS+CDMA closes the road signal; 7 is absorption resistance, and 8 is microstrip line, and 9 is CDMA bandpass filtering chamber, and 10 is PHS bandpass filtering chamber.
As shown in Figure 3 and Figure 4, it has three input ports, CDMA port input CDMA signal, and two input ports are imported PHS1 signal and PHS2 signal respectively in addition.The CDMA signal at first is divided into two-way CDMA signal by 3dB electric bridge (the 3dB electric bridge that microstrip line 8 and absorption resistance 7 are formed) through input port and respectively by two CDMA bandpass filtering chambeies, exports two to by coupled-wires again and close road port; The PHS1 signal is connected to a PHS bandpass filtering chamber through input port by input lead, exports one to by coupled-wires again and closes road port; The PHS2 signal is connected to another PHS bandpass filtering chamber through input port by input lead, exports another to by coupled-wires again and closes road port.
Fig. 5, Fig. 6, Fig. 8, Fig. 9, wherein 11 is screw (securing cover plate), 12 is tuning screw rod, 13 is screw (permanent joint), 14-a, 14-b are N connector (being respectively ANT1 output port, ANT2 output port), 15 is N connector (CDMA input port), and 16-a, 16-b are N connector (being respectively PHS1 input port, PHS2 input port).
Fig. 7, wherein 17 is coupling column (CDMA filtering chamber), 18 is coupling column (PHS filtering chamber), 19-a is input lead (a PHS1 input channel), 19-b is input lead (a PHS2 input channel), 20-a, 20-b are input lead (the two-way CDMA signal that connects back electric bridge output), and 21-a, 21-b are respectively PHS1, PHS2 coupling output lead, and 22-a, 22-b are CDMA coupling output lead.
Figure 10, wherein 7 is absorption resistance, 8 is microstrip line.
As Fig. 6, Fig. 7, shown in Figure 10, for the master of this mixer looks internal structure and internal cavity figure, four cavitys of isolating are relatively arranged in the mixer, be respectively two PHS filtering chambeies and two CDMA filtering chambeies.The PHS1 signal is by N connector 16-a input, be connected to coupling column 18 by input lead 19-a, after one of them PHS filtering chamber filtering, be connected to output lead 21-a, undertaken being connected to ANT1 by output lead again after frequency characteristic is selected by tuning screw rod 12 simultaneously and close the road output port; Equally, the PHS2 signal is by N connector 16-b input, be connected to coupling column 18 by input lead 19-b, after another PHS filtering chamber filtering, be connected to output lead 21-b, undertaken being connected to ANT2 by output lead again after frequency characteristic is selected by tuning screw rod 12 simultaneously and close the road output port; The CDMA signal is by N connector 15 inputs, the 3dB electric bridge of forming by microstrip line 8, absorption resistance 7 is divided into two-way CDMA signal, be connected to two coupling columns 17 in the CDMA filtering chamber by input lead 20-a, 20-b, carry out respectively being connected to output lead 22-a, 22-b after the filtering of filtering chamber, undertaken being connected to ANT1, ANT2 by output lead again after frequency characteristic is selected by tuning screw rod 12 simultaneously and close the road output port.The quantity of coupling column and tuning screw rod is by the decision of device index in each filtering chamber, and concrete condition has nothing in common with each other.
Embodiment 2:
Figure 11, Figure 12, wherein 4 is CDMA, is frequency range B; 5-a, 5-b, 5-c, 5-d are respectively PHS1, PHS2, PHS3, PHS4, are frequency range A; 6-a, 6-b, 6-c, 6-d are respectively the the the 1 tunnel, the 2 tunnel, the 3 tunnel, the 4 road PHS+CDMA and close the road signal; 7 is absorption resistance, and 8 is microstrip line, and 9 is CDMA bandpass filtering chamber, and 10 is PHS bandpass filtering chamber.
As Figure 11 and shown in Figure 12, it has five input ports, CDMA port input CDMA signal, and four input ports are imported PHS1, PHS2, PHS3 and PHS4 signal respectively in addition.The CDMA signal at first is divided into four road CDMA signals by 3 3dB electric bridges through input port and respectively by four CDMA bandpass filtering chambeies, exports four to by coupled-wires again and close road port; PHS1, PHS2, PHS3, PHS4 signal are connected to one of them PHS bandpass filtering chamber through input port separately by input lead, export separately the road port that closes to by coupled-wires again.
Figure 13, Figure 14, Figure 16, Figure 17, wherein 11 is screw (securing cover plate), 12 is tuning screw rod, 14-a, 14-b, 14-c, 14-d are N connector (being respectively ANT1 output port, ANT2 output port, ANT3 output port, ANT4 output port), 15 is N connector (CDMA input port), and 16-a, 16-b, 16-c, 16-d are N connector (being respectively PHS1 input port, PHS2 input port, PHS3 input port, PHS4 input port).
Figure 15, wherein 17 is coupling column (CDMA filtering chamber), 18 is coupling column (PHS filtering chamber), 19-a, 19-b, 19-c, 19-d are input lead (being respectively PHS1, PHS2, PHS3, PHS4 input channel), 20-a, 20-b, 20-c, 20-d are input lead (four road CDMA signals that connect two the electric bridge outputs in back), 21-a, 21-b, 21-c, 21-d are respectively PHS1, PHS2, PHS3, the PHS4 output lead that is coupled, and 22-a, 22-b, 22-c, 22-d are the CDMA output lead.
Figure 18, wherein 7 is absorption resistance, 8 is microstrip line.
As Figure 14, Figure 15, shown in Figure 180, for the master of this mixer looks internal structure and internal cavity figure, eight cavitys of isolating are relatively arranged in the mixer, be respectively four PHS filtering chambeies and four CDMA filtering chambeies.PHS1, PHS2, PHS3, PHS4 signal are respectively by N connector 16-a, 16-b, 16-c, 16-d input, be connected to coupling column 18 by input lead 19-a, 19-b, 19-c, 19-d, after the PHS of correspondence filtering chamber filtering, be connected to output lead 21-a, 21-b, 21-c, 21-d, simultaneously by tuning screw rod 12 carry out frequency characteristic select after again by output lead be connected to ANT1, ANT2, ANT3, ANT4 close the road output port; The CDMA signal is by N connector 15 inputs, three 3dB electric bridges forming by microstrip line 8, absorption resistance 7 are divided into four road CDMA signals, be connected to four coupling columns 17 in the CDMA filtering chamber by input lead 20-a, 20-b, 20-c, 20-d, carry out respectively being connected to output lead 22-a, 22-b, 22-c, 22-d after the filtering of filtering chamber, simultaneously by tuning screw rod 12 carry out frequency characteristic select after again by output lead be connected to ANT1, ANT2, ANT3, ANT4 close the road output port.The quantity of coupling column and tuning screw rod is by the decision of device index in each filtering chamber, and concrete condition has nothing in common with each other.
The present invention can select the signal of any two working frequency range to close the road processing.As:
N PHS signal and CDMA signal close road output;
N PHS signal and GSM signal close road output;
N PHS signal and TD-SCDMA signal close road output;
N PHS signal and WCDMA signal close road output;
N PHS signal and WLAN signal close road output;
All can use N+1 double frequency path combining method of the present invention to design its mixer etc. situation.
Though the present invention with preferred embodiment openly as above; but they are not to be used for limiting the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the invention; from when can doing various variations or retouching, so being as the criterion of should being defined with the application's claim protection range of protection scope of the present invention.
Claims (4)
1. N+1 double frequency path combining method, it is characterized in that: by the signal of special-purpose mixer, the N road is the frequency range a-signal, other one the tunnel is frequency range B signal; This method comprises: use N frequency range A bandpass filtering chamber to carry out filtering for N road frequency range a-signal; Earlier in mixer inside, be divided into N road frequency range B signal for one tunnel frequency range B signal, carry out filtering by N frequency range B bandpass filtering chamber again by the 3dB electric bridge of forming by microstrip line box absorption resistance; N frequency range A bandpass filtering chamber output signal and N frequency range B bandpass filtering chamber output signal are closed output N road, road A+B signal.
2. the special-purpose mixer according to the described method of claim 1 is characterized in that: include the input channel of N frequency range a-signal, the input channel of a frequency range B signal is arranged, have N to close road port.
3. special-purpose mixer according to claim 2, it is characterized in that: each input channel of frequency range A comprises bandpass filtering chamber, the coupled-wires of input port, input lead and frequency range A, input port is connected to the bandpass filtering chamber of frequency range A via input lead, exports the corresponding road port that closes to via coupled-wires again; The input channel of frequency range B comprises bandpass filtering chamber, the coupled-wires of input port, input lead, electric bridge and frequency range B, input port is connected to electric bridge through input lead, be connected to the bandpass filtering chamber by lead again, export the corresponding road port that closes to by coupled-wires at last.
4. special-purpose mixer according to claim 2, it is characterized in that: also comprise tuning screw rod, the frequency range a-signal is connected to output lead frequently and after the section B signal process filtering chamber filtering, is undertaken being connected to by output lead after frequency characteristic is selected by tuning screw rod simultaneously again and closes the road output port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100238457A CN101262242B (en) | 2008-04-18 | 2008-04-18 | N+1 dual frequency channel mixing method and its special channel mixer |
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| CN2008100238457A CN101262242B (en) | 2008-04-18 | 2008-04-18 | N+1 dual frequency channel mixing method and its special channel mixer |
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| CN101262242B true CN101262242B (en) | 2011-06-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103311623A (en) * | 2012-03-15 | 2013-09-18 | 江苏江佳电子股份有限公司 | Medium combiner |
| CN102752179B (en) * | 2012-07-06 | 2015-04-15 | 全军 | Radio frequency signal and CATV (Community Antenna Television) signal hybrid distribution device |
| CN104993202B (en) * | 2015-07-31 | 2018-07-13 | 东莞洲亮通讯科技有限公司 | A kind of multisystem mixing coupler |
| CN111147119B (en) * | 2019-12-23 | 2021-09-03 | 京信网络系统股份有限公司 | DAS combiner system |
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| US6711360B1 (en) * | 2001-12-28 | 2004-03-23 | Remec, Inc, | Duty-cycle adjustable clock generator with low reverse bias and zero DC level |
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| CN2718801Y (en) * | 2004-04-25 | 2005-08-17 | 摩比天线技术（深圳）有限公司 | Double channel signal combiner |
| CN2829113Y (en) * | 2005-08-16 | 2006-10-18 | 深圳国人通信有限公司 | Multi-network branching and combining system |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031197A (en) * | 1987-03-11 | 1991-07-09 | Ant Nachrichtentechnik Gmbh | Timing error detector |
| US6711360B1 (en) * | 2001-12-28 | 2004-03-23 | Remec, Inc, | Duty-cycle adjustable clock generator with low reverse bias and zero DC level |
| CN2591903Y (en) * | 2002-11-22 | 2003-12-10 | 深圳市联波通信技术有限公司 | Mobile communication multinet junction indoor covering system |
| CN2657318Y (en) * | 2003-11-25 | 2004-11-17 | 杭州紫光通信技术有限公司 | CDMA/GSM double-frequency circuit connector |
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