CN108767405A - A kind of small-sized micro coaxle multi-path power divider with high isolation characteristic - Google Patents
A kind of small-sized micro coaxle multi-path power divider with high isolation characteristic Download PDFInfo
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- CN108767405A CN108767405A CN201810734499.7A CN201810734499A CN108767405A CN 108767405 A CN108767405 A CN 108767405A CN 201810734499 A CN201810734499 A CN 201810734499A CN 108767405 A CN108767405 A CN 108767405A
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- isolation
- work
- small
- power divider
- micro coaxle
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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
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention provides a kind of small-sized micro coaxle multi-path power divider with high isolation characteristic, and electromagnetic signal divides intracavitary through coaxial port feed-in micro coaxle work(, is exported by output port after stepped impedance matching in cavity.Divide in cavity inner wire through one section of coaxial-microstrip transitions in work(, unbalanced energy signal is introduced into isolation circuit, absorbs the high isolation characteristic between realizing each output port through isolation resistance.This power splitter has compact-sized, a variety of advantages such as process and assemble is simple, and work(point/combined coefficient is high, and isolation is high, and work(point/synthesis power is big.
Description
Technical field
The invention belongs to wireless communication system and technical fields more particularly to a kind of small-sized micro- same with high isolation characteristic
Axis multi-path power divider.
Background technology
Power splitter realizes Setting signal or energy that is, by certain approach by combined power dissipation and multiple ports
Multiple-channel output.Power splitter can usually be inputted output port and exchange realization power combing again as typical reciprocal device
Function.Modern Satellite navigation, survey of deep space, remote sensing, electronic reconnaissance, electronic countermeasure and the communication technology of new generation etc. it is military or
Civilian wireless communication system, microwave system propose high requirement to the signal power of system.High-power communication, microwave system
To realizing that high s/n ratio, high-fidelity, remote, large area, strong electromagnetic/interference free performance are most important.It is commonly used in
Realize power combing mode mainly have plane synthesis and two class of space combination, plane synthesis process and assemble it is simple, it is compact-sized, answer
It is wide with range, but its combined coefficient is low, synthesis power is low；Space combination volume is big, complicated, process and assemble is difficult, but synthesizes
Power is high, synthesis power is high.Realize that the major way of space combination has waveguide class, quasi optical cavity class or reflecting surface figuration class circuit
Deng.Although traditional waveguide implementation combined coefficient is high, volume is especially huge, common waveguide multiplexer/work(point
Body is accumulated in several wavelength or so.Higher, and design optimization is then lost based on the synthesizer that quasi optical cavity or reflecting surface figuration are realized
It is complicated.In addition, above-described synthetic technology high isolation relatively difficult to achieve, which greatly limits the performance of work(point/synthesizer, from
And influence the allomeric function of microwave system.
Invention content
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of compact, high isolation
Multi-path power divider.
Technical scheme is as follows：
A kind of small-sized micro coaxle multi-path power divider with high isolation characteristic, including input/output port, work(divide cavity and
Three parts of isolation circuit are, it can be achieved that the multi-path large power of synthesis way N >=2 distributes or synthesis.
The small-sized micro coaxle multi-path power divider with high isolation characteristic, wherein work(divides cavity to be based on micro coaxle knot
Structure realizes, coaxial outer conductor can be used it is round or it is rectangular realize, coaxial inner conductor can be by rectangular, round or other polymorphic structures
It realizes.
Further, the small-sized micro coaxle multi-path power divider with high isolation characteristic, wherein the work(divides cavity
Coaxial inner conductor and outer conductor be respectively provided with ladder realize impedance transformation and matching.
Further, the small-sized micro coaxle multi-path power divider with high isolation characteristic, wherein the work(divides cavity
Coaxial inner conductor pass through one section of medium being partially filled with (polytetrafluoroethylene (PTFE)) and realize and fix.
The small-sized micro coaxle multi-path power divider with high isolation characteristic, wherein isolation circuit passes through coaxial-micro-strip
Star-like isolation resistance is accessed after conversion to realize.
Further, the small-sized micro coaxle multi-path power divider with high isolation characteristic, wherein the isolation circuit
Coaxial parts divide the inner wire of cavity to draw through work(, realize matching by one section of ladder transition.
Further, the small-sized micro coaxle multi-path power divider with high isolation characteristic, wherein the isolation circuit
Coaxial parts, inner wire pass through isolation circuit micro-strip dielectric-slab, connect with the microstrip line on dielectric-slab.
Further, the small-sized micro coaxle multi-path power divider with high isolation characteristic, wherein the isolation circuit
In microstrip circuit by one section of microstrip line and N number of isolation resistance star-like connection.
The small-sized micro coaxle multi-path power divider with high isolation characteristic, can exchange input/output port and conduct
Power combiner uses.
The small-sized micro coaxle multi-path power divider with high isolation characteristic, because work(divides cavity real using micro coaxle structure
It is existing, thus there is high power and low-loss characteristic.
Working principle of the present invention is as follows：
The input signal of the roads N Phase amplitude-matched inputs N number of laggard coaxial cavity in a subtle way in port by 50 Ω sub-miniature A connector feed-ins, through cavity
Realize that energy merges, and exports by output port after internal resistance transformation circuit.When the amplitude of input signal or inconsistent phase,
Unbalanced excess energy is dissipated on N number of isolation resistance, therefore realizes the good isolation between each input port, is unlikely to
Power signal is set to interfere with each other.Due to the addition of isolation circuit, the common adjusting input of impedance transformation, output with micro coaxle intracavitary
The echoing characteristics of port, therefore the circuit realizes good input and output matching simultaneously.When as power splitter in use, only needing
It will input, output port is exchanged, you can realize that each port possesses the energy distribution function of high-isolation.
The beneficial effects of the present invention are：
Realize a kind of high-isolation power-devided circuit based on micro coaxle structure.The circuit using after coaxial-microstrip transitions micro-
With on dielectric-slab plus the mode of star-like isolation resistance realizes the high isolation between each input port.It can be achieved at the same time and output and input
The echoing characteristics of port optimizes, and process and assemble is simply easily realized, low, the development to present HIGH-POWERED MICROWAVES system is lost in work(point
It is significant.
Description of the drawings
Fig. 1 is the sectional view of the four road power splitters based on compact micro coaxle structure
Fig. 2 is the vertical view of the four road power splitters based on compact micro coaxle structure
Fig. 3 is the S parameter simulation curve of the four road power splitters based on compact micro coaxle structure
Attached figure label corresponds to entitled：(1) input port, (2) output port, (3) work(exceptionally cavity, (4) are coaxial interior
Conductor, (5) medium substrate, (6) microstrip line, (7) isolation resistance, (8) Supporting Media
Specific implementation mode
To facilitate the understanding of the present invention, in the following with reference to the drawings and specific embodiments, the present invention will be described in more detail.
The present embodiment provides a kind of four road power splitters based on compact micro coaxle structure, structural schematic diagram as shown in Fig. 2,
The circuit realizes the high-power work(point of 8GHz to 9GHz, divides input port, 2,3,4 and 5 ports to be output wherein 1 port is work(
Port, input and output echo and isolation characteristic are as shown in Figure 3.The example realizes the input/output terminal in required band limits
Mouthful echo >=20dB, isolation >=20dB between output port, and the equal < λ of length, width and height sizeg (8.5G)。
Claims (3)
1. a kind of small-sized micro coaxle multi-path power divider with high isolation characteristic, which is characterized in that by input port, output end
Mouth, work(exceptionally cavity, coaxial inner conductor, microstrip circuit, isolation resistance and Supporting Media composition；Electromagnetic signal is through coaxle input end
Mouth feed-in work(divides cavity, is exported by output port after stepped impedance matching in cavity；Its input port can be used as output port,
The output port can be used as input port, be used as synthesizer.
2. the small-sized micro coaxle multi-path power divider with high isolation characteristic as described in claim 1, the coaxial inner conductor
It is middle that unbalanced energy signal is introduced into microstrip circuit through one section of coaxial-microstrip transitions, through the isolation electricity on microstrip circuit
Resistance absorbs the isolation realized between output port.
3. isolation resistance as claimed in claim 2 includes being not limited to the connection types such as star-like, triangle, annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810734499.7A CN108767405A (en) | 2018-07-06 | 2018-07-06 | A kind of small-sized micro coaxle multi-path power divider with high isolation characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810734499.7A CN108767405A (en) | 2018-07-06 | 2018-07-06 | A kind of small-sized micro coaxle multi-path power divider with high isolation characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108767405A true CN108767405A (en) | 2018-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810734499.7A Pending CN108767405A (en) | 2018-07-06 | 2018-07-06 | A kind of small-sized micro coaxle multi-path power divider with high isolation characteristic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767961A (en) * | 2019-10-15 | 2020-02-07 | 中国电子科技集团公司第二十九研究所 | Multi-channel signal adapter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340705A (en) * | 2016-09-20 | 2017-01-18 | 西安电子工程研究所 | Novel S band one-to-two power divider |
| CN107732395A (en) * | 2017-11-21 | 2018-02-23 | 上海航天测控通信研究所 | A kind of coaxial RADIAL power splitter |
| JP2018078469A (en) * | 2016-11-10 | 2018-05-17 | 新日本無線株式会社 | Power combiner/distributor |
-
2018
- 2018-07-06 CN CN201810734499.7A patent/CN108767405A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340705A (en) * | 2016-09-20 | 2017-01-18 | 西安电子工程研究所 | Novel S band one-to-two power divider |
| JP2018078469A (en) * | 2016-11-10 | 2018-05-17 | 新日本無線株式会社 | Power combiner/distributor |
| CN107732395A (en) * | 2017-11-21 | 2018-02-23 | 上海航天测控通信研究所 | A kind of coaxial RADIAL power splitter |
Non-Patent Citations (1)
| Title |
|---|
| 胡顺勇: ""微波毫米波平面/类平面功率合成关键技术研究"", 《中国博士学位论文全文数据库信息科技辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767961A (en) * | 2019-10-15 | 2020-02-07 | 中国电子科技集团公司第二十九研究所 | Multi-channel signal adapter |
| CN110767961B (en) * | 2019-10-15 | 2021-12-14 | 中国电子科技集团公司第二十九研究所 | Multi-channel signal adapter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |
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| RJ01 | Rejection of invention patent application after publication |