CN101916898A - Multi-circuit combiner and manufacturing method thereof - Google Patents
Multi-circuit combiner and manufacturing method thereof Download PDFInfo
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- CN101916898A CN101916898A CN2010102756782A CN201010275678A CN101916898A CN 101916898 A CN101916898 A CN 101916898A CN 2010102756782 A CN2010102756782 A CN 2010102756782A CN 201010275678 A CN201010275678 A CN 201010275678A CN 101916898 A CN101916898 A CN 101916898A
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Abstract
The invention relates to a multi-circuit combiner and a manufacturing method thereof. The multi-circuit combiner comprises at least two filter circuits receiving input signals with different frequencies, each filter circuit at least comprises two cavity filters and two tuning control units, and the outputs of the filter circuits are combined as an output of the combiner; after the outputs of at least two filter circuits are combined, the combined output is connected with a common cavity and is combined with the outputs of other filter circuits together to be used as an output of the combiner, and the common cavity is a resonant cavity. The design of matching parameters is greatly simplified by adopting the design of the multi-circuit combiner with the common cavity, the efficiency on design and production debugging is improved by debugging and automatic optimization, and the cost is reduced.
Description
Technical field
The present invention relates to the microwave transmission field, particularly be used for the multi-circuit combiner and the manufacture method thereof of alien frequencies sum of fundamental frequencies.
Background technology
After entering 21 century, along with the fast development of the communication technology, not only the mobile communication covering is more and more wider, and the base station is built more and more, the communication network of different manufacturers different systems is sports on the same stage also, vie each other, and various wireless network is also corresponding is developed rapidly, as WLAN and DCS etc., bring people convenient and happy in, people also have higher requirement to operator, and that is exactly that service quality will be got well, and price is low.But what the most difficult and cost of networking was the highest is exactly the construction of base station, and wide because its covers, quantity is big, and a lot of local traffic inconvenience, is to install or safeguard all difficultly, costs a lot of money.So people expect a kind of way naturally, that is exactly the base station facility of building before utilizing, and launching tower, antenna and feeder line etc. are as shared, and the output radio-frequency power of an equipment that need increase newly joins original feeder and gets final product.This needs to increase a device, and that is exactly mixer (or being multiplexer).Mixer is a kind of principle of utilizing the frequency resonance chamber, by a plurality of metal resonant cavities are pressed certain size combinations together, form a kind of to the filtering of characteristic frequency collection, disturb to suppress, close the microwave device that the road acts on one, be the indispensable device of microwave communication.Mixer is made up of cavity resonator, and cavity resonator is the band pass filter of a high Q value, low Insertion Loss.
Existing alien frequencies mixer generally adopts the form of multichannel unification to realize sum of fundamental frequencies, promptly closes the frequency range on road as required, takes to close the method that export on the road again after the multi-channel parallel filtering, realizes that the road of closing of two frequency band signals is exported.The quantity that alien frequencies closes the road develops into present 6, the 7 tunnel by initial 2 the road, as shown in Figure 1, also have the trend that increases.But way is many more, and design and debugging are also difficult more, even has a kind of 4 road mixers to debug the time nearly, can not satisfy batch production requirement fully, greatly influences the use of engineering.Its difficult point is the matching problem of multiband, and frequency is many more, mates difficult more.
Given this plant situation, need a kind of multi-circuit combiner at present, design and debug process are simplified, sum of fundamental frequencies efficient improves.
Summary of the invention
Content of the present invention is to overcome the defective of prior art, provides a kind of design and debugging simple, multi-circuit combiner that sum of fundamental frequencies efficient is high and manufacture method thereof.
The technical scheme that realizes the object of the invention is: multi-circuit combiner, comprise at least two filter circuits of accepting the different frequency signals input, each filter circuit comprises two cavity filters and two tuning controling units at least, and the output of each filter circuit is connected to together the output as mixer; It is characterized in that after having the output of two described filter circuits at least and connecing, insert common cavity and be connected to together as the output of mixer with the output of other filter circuit, described common cavity is a cavity resonator.
Described common cavity is the cavity resonator that joins in the mixer design in the output coupling, and to this cavity, cavity output coupling line participates in coupling thus then with two kinds of frequency couple for it.
Filter circuit more than three tunnel, two circuit that can its medium frequency is close form one group respectively, and every group is inserted a common cavity, closes road output again.
The technical scheme that realizes another goal of the invention of the present invention is: the multi-circuit combiner manufacture method, and this method may further comprise the steps:
According to
Calculate the resonance frequency of resonant cavity;
2. calculate the coupling coefficient that is coupled between the cavity according to the matrix computations method, be converted into impedance parameter, formula is Z=1/ (M* ω * √ (C1*C2)), wherein, Z is a coupling impedance, and M is a coupling coefficient, ω is a resonance angular frequency, and C1C2 is the adjacent resonators resonant capacitance;
3. set up the resonant cavity Mathematical Modeling according to above calculating parameter, in software matlab or ADS, calculate, obtain S11 or S21 transmission curve;
With 2 the road or above resonant cavity Mathematical Modeling put together, set up public chamber, adjust the resonance frequency and the coupling impedance of public chamber, obtain the curve that the best satisfies index;
5. the height according to cavity is 1/4 of a mixer centre frequency wavelength, be H=λ/4, relation formula with inner wire diameter d and cavity diameter D: d=D/3.5, impedance in the model and frequency parameter are converted to actual cavity size, utilize HFSS microwave simulation software to carry out emulation again, according to the checking of the resonance frequency of emulation with revise cavity size, determine the structure of each resonant cavity and common cavity in the multi-circuit combiner, comprise cavity size and output line height;
6. the size of determining according to step 5 is drawn and processing, carries out actual debugging with network analyzer.
The design of common cavity is the part of the design of multi-circuit combiner, and the design of common cavity and the design of multi-circuit combiner are carried out simultaneously.Adopt the design of the multi-circuit combiner of common cavity in the design of match parameter, also to simplify greatly,, improved the efficient of design and production debugging, reduced cost by debugging and Automatic Optimal.
Description of drawings
Fig. 1 is background technology figure of the present invention;
Fig. 2 is the structural representation of the embodiment of the invention 1;
Fig. 3 is the structural representation of the embodiment of the invention 2;
Fig. 4 is the flow chart of the embodiment of the invention 3.
Embodiment
Be described further below in conjunction with drawings and Examples.
Embodiment 1
As shown in Figure 2, multi-circuit combiner, comprise two-way accept different frequency signals f1, f2 the input filter circuit P1, P2, respectively comprise 4 cavity filters 1 and two tuning controling units among filter circuit P1, the P2, two kinds of input frequency signals of the P1 of wave circuit, P2 after filtration, be combined into one tunnel output through common cavity 2 again, common cavity is a cavity resonator.
As shown in Figure 3, multi-circuit combiner, comprise that 7 the tunnel accept filter circuit P1, P2, P3, P4, P5, P6 and the P7 of different frequency signals f1, f2 input, 3 common cavity 2 have been adopted in the multi-circuit combiner, P1 and P2, P3 and P4, P5 and P6 make up in twos, and by after the common cavity 2, the actual signal way that outputs to port P8 becomes four the tunnel respectively, significantly reduced the port number of coupling, it is a lot of easily that design and debugging become.When not using common cavity, 7 road input signals directly output to output P8, and the signal of 7 road different frequencies will mate mutually, interact, and bring very big difficulty for design and debugging, often also transfer a bad product in one day in the actual debugging.After common cavity is set, can mix up one in general 1.5 hours in the reality debugging, efficient has improved several times.
Embodiment 3
The multi-circuit combiner manufacture method, this method may further comprise the steps:
According to
Calculate the resonance frequency of resonant cavity;
2. calculate the coupling coefficient that is coupled between the cavity according to the matrix computations method, be converted into impedance parameter, formula is Z=1/ (M* ω * √ (C1*C2)), wherein, Z is a coupling impedance, and M is a coupling coefficient, ω is a resonance angular frequency, and C1C2 is the adjacent resonators resonant capacitance;
3. set up the resonant cavity Mathematical Modeling according to above calculating parameter, in software matlab or ADS, calculate, obtain S11 or S21 transmission curve;
With 2 the road or above resonant cavity Mathematical Modeling put together, set up public chamber, adjust the resonance frequency and the coupling impedance of public chamber, obtain the curve that the best satisfies index;
5. the height according to cavity is 1/4 of a mixer centre frequency wavelength, be H=λ/4, relation formula with inner wire diameter d and cavity diameter D: d=D/3.5, impedance in the model and frequency parameter are converted to actual cavity size, utilize HFSS microwave simulation software to carry out emulation again, according to the checking of the resonance frequency of emulation with revise cavity size, determine the structure of each resonant cavity and common cavity in the multi-circuit combiner, comprise cavity size and output line height;
6. the size of determining according to step 5 is drawn and processing, carries out actual debugging, wears out and sprays paint with network analyzer, finishes the production process of multi-circuit combiner.
Claims (3)
1. multi-circuit combiner comprises at least two filter circuits of accepting the different frequency signals input, and each filter circuit comprises two cavity filters and two tuning controling units at least, and the output of each filter circuit is connected to together the output as mixer; It is characterized in that after having the output of two described filter circuits at least and connecing, insert common cavity and be connected to together as the output of mixer with the output of other filter circuit, described common cavity is a cavity resonator.
2. multi-circuit combiner according to claim 1 is characterized in that, the filter circuit more than three tunnel, and two circuit that frequency is close form one group respectively, and every group is inserted a common cavity, closes road output again.
3. the multi-circuit combiner manufacture method is characterized in that, this method may further comprise the steps:
1) basis
Calculate the resonance frequency of resonant cavity;
2) calculate the coupling coefficient that is coupled between the cavity according to the matrix computations method, be converted into impedance parameter, formula is Z=1/ (M* ω * √ (C1*C2)), wherein, Z is a coupling impedance, and M is a coupling coefficient, ω is a resonance angular frequency, and C1C2 is the adjacent resonators resonant capacitance;
3) set up the resonant cavity Mathematical Modeling according to above calculating parameter, in software matlab or ADS, calculate, obtain S11 or S21 transmission curve;
4) with 2 the road or above resonant cavity Mathematical Modeling put together, set up public chamber, adjust the resonance frequency and the coupling impedance of public chamber, obtain the curve that the best satisfies index;
5) height according to cavity is 1/4 of a mixer centre frequency wavelength, be H=λ/4, relation formula with inner wire diameter d and cavity diameter D: d=D/3.5, impedance in the model and frequency parameter are converted to actual cavity size, utilize HFSS microwave simulation software to carry out emulation again, according to the checking of the resonance frequency of emulation with revise cavity size, determine the structure of each resonant cavity and common cavity in the multi-circuit combiner, comprise cavity size and output line height;
6) size of determining according to step 5 is drawn and processing, carries out actual debugging with network analyzer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102756782A CN101916898A (en) | 2010-09-08 | 2010-09-08 | Multi-circuit combiner and manufacturing method thereof |
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| CN2010102756782A CN101916898A (en) | 2010-09-08 | 2010-09-08 | Multi-circuit combiner and manufacturing method thereof |
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| CN101916898A true CN101916898A (en) | 2010-12-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958165A (en) * | 2016-06-08 | 2016-09-21 | 南京信息工程大学 | Miniature high-isolation triple-band and six-way microstrip combiner |
| CN106876832A (en) * | 2017-03-31 | 2017-06-20 | 安徽四创电子股份有限公司 | A kind of broadband millimeter-wave section waveguide multiplexer based on waveguide magic T |
| CN110113073A (en) * | 2019-05-16 | 2019-08-09 | 京信通信技术(广州)有限公司 | Medium POI |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010030587A1 (en) * | 1999-12-06 | 2001-10-18 | Kathrein, Inc., Scala Division | Receive/transmit multiple cavity filter having single input/output cavity |
| CN1411296A (en) * | 2001-09-28 | 2003-04-16 | 华为技术有限公司 | Base station receiver and transmitter radio frequency front end route merging apparatus |
| CN201562745U (en) * | 2009-10-22 | 2010-08-25 | 南京广顺网络通信设备有限公司 | TD-SCDMA three-frequency combiner |
-
2010
- 2010-09-08 CN CN2010102756782A patent/CN101916898A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010030587A1 (en) * | 1999-12-06 | 2001-10-18 | Kathrein, Inc., Scala Division | Receive/transmit multiple cavity filter having single input/output cavity |
| CN1411296A (en) * | 2001-09-28 | 2003-04-16 | 华为技术有限公司 | Base station receiver and transmitter radio frequency front end route merging apparatus |
| CN201562745U (en) * | 2009-10-22 | 2010-08-25 | 南京广顺网络通信设备有限公司 | TD-SCDMA three-frequency combiner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958165A (en) * | 2016-06-08 | 2016-09-21 | 南京信息工程大学 | Miniature high-isolation triple-band and six-way microstrip combiner |
| CN105958165B (en) * | 2016-06-08 | 2018-09-14 | 南京信息工程大学 | A kind of three frequency range of miniaturization high isolation, six tunnel micro-strip combiner |
| CN106876832A (en) * | 2017-03-31 | 2017-06-20 | 安徽四创电子股份有限公司 | A kind of broadband millimeter-wave section waveguide multiplexer based on waveguide magic T |
| CN110113073A (en) * | 2019-05-16 | 2019-08-09 | 京信通信技术(广州)有限公司 | Medium POI |
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Application publication date: 20101215 |