CN107681241A - A kind of two-way cavity coupler and method of work having with frequency combining function - Google Patents
A kind of two-way cavity coupler and method of work having with frequency combining function Download PDFInfo
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- CN107681241A CN107681241A CN201711173214.9A CN201711173214A CN107681241A CN 107681241 A CN107681241 A CN 107681241A CN 201711173214 A CN201711173214 A CN 201711173214A CN 107681241 A CN107681241 A CN 107681241A
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 86
- 238000010168 coupling process Methods 0.000 claims abstract description 86
- 238000005859 coupling reaction Methods 0.000 claims abstract description 86
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
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Abstract
The present invention provides a kind of two-way cavity coupler and method of work having with frequency combining function, and two-way cavity coupler includes cavity；The input port of external connection first, the second input port, the first delivery outlet, the second delivery outlet and the coupling aperture of cavity；First group of coupling bar, second group of coupling bar and load resistance are installed in the cavity；The input of first group of coupling bar connects the first input port, and output end connects the first delivery outlet, and coupled end is connected with the coupling aperture of two-way cavity coupler, and isolation end is connected with the coupled end of second group of coupling bar；The input of second group of coupling bar connects the second input port, and output end connects the second delivery outlet, isolation end connection load resistance.The present invention has simple and compact for structure, and small volume, cost is low, and stability is high, and isolation performance is good, undamped with frequency combining part signal, the advantages that being easy to processing.It is mainly used in two-way homogenous frequency signal in communication system and is respectively coupled out part signal being combined output.
Description
Technical field
The present invention relates to cellular mobile communication field, more particularly to a kind of two-way cavity coupling having with frequency combining function
Clutch and its method of work.
Background technology
Largely emerged in large numbers recently as large-scale market, hotel and subway etc., indoor distributed system also present newly
The characteristics of, in order to improve the construction speed of communication network and reduce the cost of repeated construction, a variety of communication standards share signal
The pattern of compartment system has been obtained for extensive use.Carried out sometimes for part signal is respectively coupled out from two-way homogenous frequency signal
Combining, remaining signal normal transmission；In this case, it often requires by two couplers and a same frequency combiner（3dB electricity
Bridge）To form a system, the result is that bulky, interface is numerous, costly, big with the decay of frequency combining part signal
（More than 3dB）.It is contemplated that providing a kind of two-way cavity coupler having with frequency combining function, it disclosure satisfy that two-way is believed with frequency
Part signal is respectively coupled out in number and is combined output, and it is undamped with frequency combining part signal.
The content of the invention
In order to overcome above-mentioned prior art deficiency, the invention provides a kind of two-way cavity coupling having with frequency combining function
Clutch and its method of work.Realize that two-way homogenous frequency signal is respectively coupled out part signal and is combined output in a part, and
It is undamped with frequency combining part signal.
The present invention uses following technical scheme：A kind of two-way cavity coupler having with frequency combining function, its feature exist
In：Including cavity；The input port of external connection first, the second input port, the first delivery outlet, the second delivery outlet and the coupling of cavity
Mouthful；First group of coupling bar, second group of coupling bar and load resistance are installed in the cavity；The input of first group of coupling bar
End the first input port of connection, output end connect the first delivery outlet, and coupled end is connected with the coupling aperture of two-way cavity coupler, isolates
End is connected with the coupled end of second group of coupling bar；The input of second group of coupling bar connects the second input port, output end connection the
Two delivery outlets, isolation end connection load resistance.
In an embodiment of the present invention, the first input port, the second input port, the first delivery outlet, the second delivery outlet and coupling
The signal to heal up has identical frequency.
The present invention also provides a kind of to be had with its method of work of the two-way cavity coupler of frequency combining function based on above-mentioned
Comprise the following steps：For 1st group of part signal through the first input port and first group of coupling article, coupling aperture is coupled out the 1st group of signal, its
The 1st group of signal output remaining to the first delivery outlet；2nd group of coupled end of the part signal through the second input port and second group of coupling article with
The isolation end of first group of coupling bar, then the coupled end through first group of coupling bar are connected with coupling aperture, and remaining the 2nd group of signal output is extremely
Second delivery outlet；By adjusting the degree of coupling of second group of coupling bar, make the degree of coupling of 2 groups of public coupling apertures of signals arrival equal.
Compared with prior art, the invention provides a kind of two-way cavity coupler having with frequency combining function.Have
Simple and compact for structure, small volume, cost is low, and stability is high, and isolation performance is good, undamped with frequency combining part signal, is easy to add
The advantages that work.It is mainly used in two-way homogenous frequency signal in communication system and is respectively coupled out part signal being combined output.
Brief description of the drawings
Fig. 1 is the structural topology figure of one embodiment of the invention.
Fig. 2 is the simulation result figure of one embodiment of the invention.
Fig. 3 is the internal structure schematic diagram of one embodiment of the invention.
Fig. 4 is the side structure schematic view of one embodiment of the invention.
Embodiment
Explanation is further explained to the present invention with specific embodiment below in conjunction with the accompanying drawings.
The present invention provides a kind of two-way cavity coupler having with frequency combining function, and it includes cavity；The outside of cavity
Connect the first input port, the second input port, the first delivery outlet, the second delivery outlet and coupling aperture；Is provided with the cavity
One group of coupling bar, second group of coupling bar and load resistance；The input of first group of coupling bar connects the first input port, output
The first delivery outlet of end connection, coupled end are connected with the coupling aperture of two-way cavity coupler, isolation end and second group of coupling for coupling bar
End is closed to be connected；The input of second group of coupling bar connects the second input port, and output end connects the second delivery outlet, and isolation end connection is negative
Carry resistance.
In an embodiment of the present invention, the first input port, the second input port, the first delivery outlet, the second delivery outlet and coupling
The signal to heal up has identical frequency.
The two-way cavity coupler having with frequency combining function of the present invention, is to be made using in a cavity needed for two
Degree of coupling identical coupler.In an embodiment of the present invention, above-mentioned function is realized with the topological structure shown in Fig. 1, with double
Exemplified by the 10dB couplers of road.The coupling aperture of first via 10dB couplers is as two-way cavity coupler output coupling mouth 5, input port
It is respectively the coupling aperture of two-way cavity coupler input port 1 and delivery outlet 3, isolated port and the second road 10dB couplers with delivery outlet
It is connected；The input port of second road 10dB couplers and delivery outlet are respectively two-way cavity coupler input port 4 and delivery outlet 2.
After being emulated using computer simulation software, its result as shown in Figure 2, the isolation of input port 1 and input port 4 is more than 25dB, defeated
Outlet 3 and the isolation of delivery outlet 2 are more than 25dB, and the isolation of input port 1 and delivery outlet 2 is more than 30dB, input port 4 and export
The isolation of mouth 3 is 20dB, and input port 1 and the degree of coupling of coupling aperture 5 are 10dB, and input port 4 and the degree of coupling of coupling aperture 5 are
10dB.In the presence of first group of coupling bar 8 and second group of coupling bar 9, coupling and the combining output of homogenous frequency signal are realized,
Reduce processing cost and reduce the quantity of the communication device of indoor distributed system.
Further, in one embodiment of the invention, two-way cavity coupler internal structure schematic diagram is referring to Fig. 3, side view knot
Structure schematic diagram is referring to Fig. 4.Two-way cavity coupler, including cavity 1, external connection the first input port 2, the second input port of cavity
5th, the first delivery outlet 4, the second delivery outlet 3 and coupling aperture 6, inside installation first group of coupling bar, 8, second groups of coupling bars of cavity
9 and load resistance 7.The input of first group of coupling bar 8 connects the first input port, and output end connects the first delivery outlet 4, coupled end
It is connected with the coupling aperture 6 of two-way cavity coupler, isolation end is connected with the coupled end of second group of coupling bar 9；Second group of coupling bar 9
Input connect the second input port 5, output end connects the second delivery outlet 3, and isolation end is connected with load resistance 7.At first group
In the presence of coupling bar 8 and second group of coupling bar 9, realize coupling and the combining output of homogenous frequency signal, reduce processing cost and
Reduce the quantity of the communication device of indoor distributed system.
The present invention also provides a kind of to be had with its method of work of the two-way cavity coupler of frequency combining function based on above-mentioned
Comprise the following steps：For 1st group of part signal through the first input port and first group of coupling article, coupling aperture is coupled out the 1st group of signal,
Remaining the 1st group of signal output is to the first delivery outlet；2nd group of coupled end of the part signal through the second input port and second group of coupling article
It is connected with first group of isolation end for coupling bar, then the coupled end through first group of coupling bar with coupling aperture, remaining the 2nd group of signal output
To the second delivery outlet；It is variant that the path of public coupling aperture is reached due to 2 groups of signals, so appropriate slightly second group of coupling of adjustment
The degree of coupling of bar, you can meet that the degree of coupling of 2 groups of public coupling apertures of signals arrival is roughly equal.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (3)
- A kind of 1. two-way cavity coupler having with frequency combining function, it is characterised in that：Including cavity；The external connection of cavity First input port, the second input port, the first delivery outlet, the second delivery outlet and coupling aperture；First group is provided with the cavity Couple bar, second group of coupling bar and load resistance；The input of first group of coupling bar connects the first input port, and output end connects The first delivery outlet is connect, coupled end is connected with the coupling aperture of two-way cavity coupler, isolation end and second group of coupled end for coupling bar It is connected；The input of second group of coupling bar connects the second input port, and output end connects the second delivery outlet, isolation end connection load electricity Resistance.
- 2. the two-way cavity coupler according to claim 1 having with frequency combining function, it is characterised in that：First input Mouth, the second input port, the first delivery outlet, the signal of the second delivery outlet and coupling aperture have identical frequency.
- 3. the method for work with the two-way cavity coupler with frequency combining function according to claim 1, its feature exist In：Comprise the following steps：For 1st group of part signal through the first input port and first group of coupling article, coupling aperture is coupled out the 1st group of letter Number, remaining the 1st group of signal output to the first delivery outlet；2nd group of coupling of the part signal through the second input port and second group of coupling article Close end with first group of isolation end for coupling bar, then the coupled end through first group of coupling bar with coupling aperture to be connected, remaining the 2nd group of signal Export to the second delivery outlet；By adjusting the degree of coupling of second group of coupling bar, 2 groups of signals are made to reach the degree of coupling of public coupling aperture It is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173214.9A CN107681241B (en) | 2017-11-22 | 2017-11-22 | Double-channel cavity coupler with same-frequency combining function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173214.9A CN107681241B (en) | 2017-11-22 | 2017-11-22 | Double-channel cavity coupler with same-frequency combining function |
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| CN107681241A true CN107681241A (en) | 2018-02-09 |
| CN107681241B CN107681241B (en) | 2023-11-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982339A (en) * | 2017-12-28 | 2019-07-05 | 中国电信股份有限公司 | Indoor distributed system and two-way coupler |
| CN113629373A (en) * | 2020-05-06 | 2021-11-09 | 中国电信股份有限公司 | Coupler, loop indoor distribution system and signal equalization method |
| CN114679693A (en) * | 2022-03-22 | 2022-06-28 | 中国电信股份有限公司 | Coupling device and indoor distribution system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982339A (en) * | 2017-12-28 | 2019-07-05 | 中国电信股份有限公司 | Indoor distributed system and two-way coupler |
| CN109982339B (en) * | 2017-12-28 | 2022-02-25 | 中国电信股份有限公司 | Indoor distribution system |
| CN114335961A (en) * | 2017-12-28 | 2022-04-12 | 中国电信股份有限公司 | Double-path coupler and indoor distribution system |
| CN113629373A (en) * | 2020-05-06 | 2021-11-09 | 中国电信股份有限公司 | Coupler, loop indoor distribution system and signal equalization method |
| CN113629373B (en) * | 2020-05-06 | 2022-11-01 | 中国电信股份有限公司 | Coupler, loop indoor distribution system and signal equalization method |
| CN114679693A (en) * | 2022-03-22 | 2022-06-28 | 中国电信股份有限公司 | Coupling device and indoor distribution system |
| CN114679693B (en) * | 2022-03-22 | 2023-12-19 | 中国电信股份有限公司 | Coupling device and chamber division system |
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| CN107681241B (en) | 2023-11-03 |
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