CN103779644B - Road device is closed in signal coupling - Google Patents
Road device is closed in signal coupling Download PDFInfo
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- CN103779644B CN103779644B CN201310535086.3A CN201310535086A CN103779644B CN 103779644 B CN103779644 B CN 103779644B CN 201310535086 A CN201310535086 A CN 201310535086A CN 103779644 B CN103779644 B CN 103779644B
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Abstract
The invention discloses a kind of signal coupling and close road device, including some coaxial rods, be respectively used to transmit unlike signal；Route is closed in coupling, for the signal of the some coaxial rods of capacitive coupling and carry out closing road；Some coaxial rods respectively with couple conjunction route be arranged in parallel；Coaxial rod is assembled in same coaxial cavity with coupling conjunction route.By the way, the present invention can carry out coupling and close road multichannel unlike signal, reduces the passive intermodulation of signal primary path simultaneously.
Description
Technical field
The present invention relates to communication equipment field, particularly relate to a kind of signal coupling and close road device.
Background technology
At present, multi signal coupling in communication equipment, conjunction road function divide two kinds of forms, one to be with frequency
Signal, uses bonder coupling, recycling power splitter to close road, obtain the conjunction road signal of multiple signals.
As it is shown in figure 1, Fig. 1 is prior art closes road mode with the coupling of frequency different carrier signal, including
Two paths of signals, signal a and signal b, signal a utilizes coaxial rod to carry out primary path input and master is logical
Road exports, and signal b utilizes another coaxial rod to carry out primary path input and primary path exports, wherein,
Two coaxial rods lay respectively in different coaxial cavities, and between signal, primary path is separate.When
Signal, in transmitting procedure, carries out coupling with coaxial rod coupling line in same coaxial cavity to signal
Closing, the two paths of signals being coupled out closes road output via power splitter.This mode is at same communications band not
In the case of carrier signal, using power splitter conjunction road consistent with alien frequencies signal, 2 road signals close roads
Time, signal power halves, i.e. power reduces 3dB；When 4 road signals close road, signal attenuation is more than
6dB；When 6 road signals close road, decay is more than 8dB；When 8 road signals close road, decay is more than 9dB.
In the case of determining conjunction road output signal power, the coupling of this conjunction road mode is along with input signal number
The increase of amount, the degree of coupling increases accordingly.
The second is alien frequencies signal, uses bonder first to couple different frequency range signal, then by closing road
Unlike signal is closed road by device, obtains the conjunction road signal of multi signal.As in figure 2 it is shown, Fig. 2 is existing
Road mode is closed in the coupling of technology alien frequencies signal, including two paths of signals, signal c and signal d, signal c
Utilizing coaxial rod to carry out primary path input and primary path exports, signal d utilizes another coaxial rod to carry out
Primary path input and primary path export, and wherein, two coaxial rods lay respectively at different coaxial cavities
In, between signal, primary path is separate.When signal is in transmitting procedure, with coaxial rod same
Signal is coupled by the coupling line in coaxial cavity, and the two paths of signals being coupled out closes via combiner
Road exports.This closes road mode loss of signal and depends on combiner insertion loss, and being commonly inserted loss is
About 1dB, so every road coupled signal closes road decays to about 1dB.
In actual applications, the conjunction road between the most same communications band different carrier signal.?
In the case of in mobile communication, RF hopping technology commonly uses at present, carrier frequency is being jumped at any time
Become, utilize combiner narrowband carrier signal is carried out close road the most impossible, merit therefore can only be used to divide
The form of device carries out closing road, and incoming carrier is the most, and the distribution attenuation loss of power splitter is the biggest, when greatly
After to a certain extent, distribution decay makes to close road signal cannot meet actual requirement, actually used in
Will be unable to realize coupling and close road.When alien frequencies segment signal inputs, suitable combiner need to be selected, when
Input signal quantity becomes 5 or during more multichannel, and combiner just becomes considerably complicated, even cannot
Combiner is used to realize closing road.
Therefore, when input signal path exceedes some, and when coupling amount is required, above-mentioned
Mode all can not realize signal coupling and close road.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of signal coupling and closes road device, it is possible to right
Multichannel unlike signal carries out coupling and closes road, reduces the passive intermodulation of signal primary path simultaneously.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide one letter
Road device is closed in number coupling, including: some coaxial rods, it is respectively used to transmit unlike signal；Coupling is closed
Route, for the signal of the some coaxial rods of capacitive coupling and carry out closing road；Some coaxial rods respectively with
Coupling is closed route and is be arranged in parallel；Coaxial rod is assembled in same coaxial cavity with coupling conjunction route.
Wherein, coupling close route based on one illusory in square-wave pulse shape arrange, formed some side by side
And the coupling branch line being parallel to each other, between adjacent two coupling branch lines, there is connecting line, Mei Getong
Mandrel rod and a coupling branch line are set in parallel.
Wherein, coupling close route include some side by side, be parallel to each other and be positioned at different illusory
Coupling branch line, and connect some connecting lines of adjacent two coupling branch lines, each coaxial rod and one
Coupling branch line is set in parallel.
Wherein, it is characterised in that coupling close route be pcb board co-planar waveguide, PCB microstrip line,
PCB strip line, metal conduction band or coaxial rod.
Wherein, the signal of coaxial rod transmission is with frequency in-phase signal, with frequency different carrier signal or different
Frequently signal.
Wherein, coaxial rod closes route be installed in the both sides of same coaxial cavity respectively with coupling.
The invention has the beneficial effects as follows: be different from the situation of prior art, the signal coupling of the present invention
Close some coaxial rods that road device includes being respectively used to transmit unlike signal, some for capacitive coupling
The signal of coaxial rod carrying out closes the coupling on road and closes route, and coaxial rod closes route all install with coupling
In same coaxial cavity.Some coaxial rods can make its signal transmitted respectively have higher isolation
Degree, coupling is closed route and is realized coupling and close the integrated design on road.By the way, the present invention
Signal coupling close road device and multichannel unlike signal can be carried out coupling and close road, reduce signal simultaneously
The passive intermodulation of primary path.
Accompanying drawing explanation
Fig. 1 is that prior art closes the schematic diagram of road mode with frequency different carrier signal coupling；
Fig. 2 is the schematic diagram that road mode is closed in the coupling of prior art alien frequencies signal；
Fig. 3 is the schematic diagram that road device one embodiment is closed in signal of the present invention coupling.
Detailed description of the invention
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 3, Fig. 3 is the schematic diagram that road device one embodiment is closed in signal of the present invention coupling.
In the present embodiment, signal coupling is closed road device and is included that some coaxial rods, coupling close route and coaxial
Cavity.
Wherein, some coaxial rods are respectively used to transmit unlike signal.Coupling closes route for capacitive coupling
Close the signal of some coaxial rods and carry out closing road.
Wherein, some coaxial rods respectively with couple conjunction route be arranged in parallel, and coaxial rod with couple conjunction
Route is assembled in same coaxial cavity.
In the present embodiment, the set-up mode of coupling conjunction route includes following two mode.
A. coupling close route based on one illusory in square-wave pulse shape arrange, formed some side by side and
The coupling branch line being parallel to each other, has a connecting line between adjacent two coupling branch lines, each coaxially
Rod couples branch line with one and is set in parallel.
B. coupling close route include some side by side, be parallel to each other and be positioned at the coupling of different illusory
Close branch line, and connect adjacent two some connecting lines coupling branch lines, each coaxial rod and a coupling
Conjunction branch line is set in parallel.
Wherein, the present embodiment arranges coupling in A mode and closes route.Specifically, coaxial rod place is same
Any side of axocoel body uses the mode of fluting to take coupling, and coupling is closed the fluting face of route and is positioned at coaxially
Same plane in cavity, can make all coupling branch lines be in identical horizontal plane, it is simple to realize coupling
He He road, reduces design difficulty.
In the present embodiment, coaxial rod is installed in the two of same coaxial cavity respectively with coupling conjunction route
Side.Coaxial cavity in the present embodiment is cuboid.
In other embodiments, coaxial cavity is alternatively other shapes, such as cylinder etc..
In the present embodiment, coaxial rod realizes the signal transmission of primary path, and a coaxial rod corresponding is main
Path, this mode can make to keep between primary path higher isolation, reduces the shadow between primary path
Ring so that it is passive intermodulation impact each other is negligible.
In the present embodiment, route is closed in coupling is pcb board co-planar waveguide, PCB microstrip line, PCB
Strip line, metal conduction band or coaxial rod.
In the present embodiment, the signal of coaxial rod transmission is with frequency in-phase signal, with frequency different carrier
Signal or alien frequencies signal.
The present embodiment can realize the coupling of multichannel unlike signal and close road, specially many main path signal warp
After route coupling, conjunction road are closed in overcoupling, road signal is closed in the outfan output closing route from coupling.
Above-mentioned implementation can be divided into two processes, and journey is passed by coupling process and conjunction, below to two mistakes
Journey is described in detail.
Coupling process is similar to common bonder coupling, and high-power signal inputs e end from primary path
Input, from primary path output e end output, correspondingly, the present embodiment have multiple consistent input～
Output primary path, signal path can terminate up to primary path input x～primary path output x, this
Place x represents infinite.All inputs～output primary path realize shape with input e～output e primary path
Formula is consistent, but separate with input e～output e primary path, and between all primary paths that
This is separate.Separate signal primary path, uses the mode of coaxial rod to realize.
The input signal of each primary path can be with frequency in-phase signal, with frequency different carrier signal or alien frequencies
Signal.Utilize coupling to close route above-mentioned signal is coupled.
The signal of different frequency, adjustable couples the length closing route accordingly, makes each primary path corresponding
Coupling to close path length be 1/4 λ of main path signal mid frequency, institute at grade
There is the degree of coupling identical.It addition, in the case of the different degree of coupling of needs, coaxial rod and coupling can be changed
The distance closed between route realizes.For coupling close route length and and coaxial rod between
Distance freely can arrange according to the requirement of frequency, the degree of coupling.
Journey is passed by conjunction, and the signal of all separate primary paths, after overcoupling, is closed by coupling
Route conjunction road is to output port, and this closes road mode and there is not the combination loss between unlike signal, only
Insertion loss and the coaxial rod of coupling conjunction route need to be considered and couple the coupling loss closed between route
?.
Wherein, if closing road device to use pcb board form, route is closed for reducing signal by coupling
Insertion loss, can be selected for microwave sheet material, and its tangent loss angle is the smaller the better.
Road device is closed in the signal coupling of the present embodiment can make multiple signals by separate coaxial rod
Primary path inputs, and the equipment that primary path output termination impedance is 50 Ω.
The present embodiment device can realize various signal and be simultaneously entered, and the function of road output is closed in coupling.Close
Signal behind road exports from a port, and ensures extremely low loss behind conjunction road.Ensureing the degree of coupling
In the case of constant, compared with routine coupling conjunction road, the present embodiment device can reduce the degree of coupling.
The present embodiment device can be used for the frequency range of all employing microwave communications.
The present embodiment device can be used for needing multiple signals coupling, the communication relay set on conjunction road, especially
It is applicable to the degree of coupling situation more than 10dB.
In sum, present invention have the advantage that
The most various signals, after overcoupling, use identical conjunction road mode, and can be according to actual need
Various signals are carried out independent assortment design, closes road and do not consider further that the shadow of the factors such as signal frequency
Ring, it is achieved mode is simple, have originality；
2., when road is closed in multiple signals coupling, combination loss is mainly coupling loss, and the present invention closes road
The degree of coupling of end approximates the degree of coupling of one-channel signal, compared with usual manner, can greatly drop
Weak coupling, thus it is substantially reduced the coupling impact on passive intermodulation；
3. separate design is used between each input～output primary path, it is possible to decrease each
Influencing each other between input～output primary path, makes the impact of primary path passive intermodulation each other
Negligible, it is ensured that the passive intermodulation that each primary path is extremely low；
4. couple and close road integrated design, it is possible to decrease the material cost of product and processing cost,
Improve production efficiency.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention,
Every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion, or
Directly or indirectly being used in other relevant technical fields, the patent being the most in like manner included in the present invention is protected
In the range of protecting.
Claims (5)
1. road device is closed in a signal coupling, it is characterised in that including:
Some coaxial rods, are respectively used to transmit unlike signal；
Route is closed in coupling, including some coupling branch lines being parallel to each other and connect adjacent two couplings
Closing the connecting line of branch line, the route signal for some coaxial rods described in capacitive coupling is closed in this coupling
And carry out closing road；
Described some coaxial rods be arranged in parallel with the described branch line that couples respectively；
Described coaxial rod is installed in the both sides of same coaxial cavity respectively with the described conjunction route that couples.
Device the most according to claim 1, it is characterised in that route is closed in described coupling
Being positioned on one illusory, and arrange in square-wave pulse shape, described coupling branch line closes along described coupling
The direction that route extends the most side by side and is parallel to each other, each coaxial rod and a coupling branch line
It is set in parallel.
Device the most according to claim 1, it is characterised in that described coupling branch line position
On different illusory, the direction that described coupling branch line closes route extension along described coupling is mutual
Side by side and be parallel to each other, each coaxial rod and a coupling branch line are set in parallel.
4. according to the device described in Claims 2 or 3, it is characterised in that described coupling is closed
Route is pcb board co-planar waveguide, PCB microstrip line, PCB strip line or metal conduction band.
Device the most according to claim 4, it is characterised in that described coaxial rod transmits
Signal be with frequency in-phase signal, with frequency different carrier signal or alien frequencies signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310535086.3A CN103779644B (en) | 2013-11-01 | 2013-11-01 | Road device is closed in signal coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310535086.3A CN103779644B (en) | 2013-11-01 | 2013-11-01 | Road device is closed in signal coupling |
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| Publication Number | Publication Date |
|---|---|
| CN103779644A CN103779644A (en) | 2014-05-07 |
| CN103779644B true CN103779644B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310535086.3A Active CN103779644B (en) | 2013-11-01 | 2013-11-01 | Road device is closed in signal coupling |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114221103B (en) * | 2021-12-03 | 2023-02-17 | 江苏德是和通信科技有限公司 | 4-path power synthesizer with hot switching function and 4-path power synthesis method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5557290A (en) * | 1992-12-16 | 1996-09-17 | Daiichi Denpa Kogyo Kabushiki Kaisha | Coupling apparatus between coaxial cables and antenna system using the coupling apparatus |
| CN201689962U (en) * | 2010-06-08 | 2010-12-29 | 南京东恒电子科技有限公司 | Multi-path shared frequency combiner |
| CN203607524U (en) * | 2013-11-01 | 2014-05-21 | 京信通信系统（中国）有限公司 | Signal coupling combiner device |
-
2013
- 2013-11-01 CN CN201310535086.3A patent/CN103779644B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5557290A (en) * | 1992-12-16 | 1996-09-17 | Daiichi Denpa Kogyo Kabushiki Kaisha | Coupling apparatus between coaxial cables and antenna system using the coupling apparatus |
| CN201689962U (en) * | 2010-06-08 | 2010-12-29 | 南京东恒电子科技有限公司 | Multi-path shared frequency combiner |
| CN203607524U (en) * | 2013-11-01 | 2014-05-21 | 京信通信系统（中国）有限公司 | Signal coupling combiner device |
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| CN103779644A (en) | 2014-05-07 |
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Effective date of registration: 20200115 Address after: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Address before: 510663 Guangzhou Science City, Guangdong Shenzhou Road, No. 10 Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
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Effective date of registration: 20230804 Address after: 510730, No. 6, Jin Lu, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Patentee after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Patentee after: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Address before: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. |
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