CN107706493A - High-isolation is the same as Axial and radial power divider - Google Patents
High-isolation is the same as Axial and radial power divider Download PDFInfo
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- CN107706493A CN107706493A CN201710830894.0A CN201710830894A CN107706493A CN 107706493 A CN107706493 A CN 107706493A CN 201710830894 A CN201710830894 A CN 201710830894A CN 107706493 A CN107706493 A CN 107706493A
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- port
- isolation
- power divider
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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
Abstract
The invention discloses a kind of high-isolation suitable for millimeter-wave frequency with Axial and radial multipath power distributor.The high-isolation radial direction power divider includes a coaxial input mouth, three round platform mating structures, several (n >=2) rectangular waveguide output port, isolated port and its mating structures.TEM ripples in coaxial line synthesize TE through round platform mating structure in rectangle is led10Mould, realize in coaxial line TEM ripples to n rectangular waveguide TE through the guiding of multiple isolated ports10Patten transformation and the energy distribution of mould, the same phase of signal constant amplitude of each output port.The benefit of increase isolated port is mainly to have higher isolation between output port, and compared to structures such as circular waveguides, coaxial line is used in the present invention, transmitted using the main mould of coaxial line, the pure interference for avoiding higher mode of pattern, the structure is particularly suitable for use in power distribution/combiner circuit of millimeter-wave frequency, can also be extended to higher frequency.
Description
Technical field
The present invention relates to millimeter wave power synthesis technical field, and in particular to a kind of radial direction power distribution of high-isolation
Device.
Background technology
Millimeter-wave power amplifiers are the core components of millimeter-wave systems, are the study hotspots of millimeter wave field, extensive
Apply to the field such as military radar system, radio astronomy and space and short-distance wireless high-speed transfer, there is huge answer
With value and market prospects.Requirement more and more higher of the every field to amplifier output power in recent years, but due to single pipe
Power output is limited, and improving single tube power output not only increases cost, and with the increase of power output, causes stability
Reduced with reliability.It is thus an inevitable choice using the power synthetic technique of the multiple coherent amplifiers of combination, the technology can
So that the power output capacity of amplifier to be lifted at double, so as to reach the purpose for substituting middle-size and small-size travelling-wave tubes, achievable small volume,
The performances such as in light weight, cost is low, reliability is high, long lifespan, voltage is low, crash rate is low.
For more power synthetic techniques, multichannel, broadband, low-loss power divider are most importantly realized,
If signal will be divided into all the way after main line amplifies respectively, then power divider is used as the conjunction that power combiner completes multiple signals
Into the power output of final system is equal to each solid-state devices power output sum, so as to realize the multiplication of power output.
Power divider directly affects power combining efficiency, not required nothing more than as the Primary Component in power synthesis circuit
Distribution amplitude and phase have uniformity, but also require there is higher isolation between port.And the footpath based on coaxial form
To waveguide power distributor due to the advantages that anti-interference, loss is low, and working band is wide, being widely used.Realize
The power divider of high-isolation is the significant difficulty of current power synthetic technique.
The present invention is based on above problem, it is proposed that a multichannel based on coaxial line TEM moulds radially has the work(of high isolation
Rate distributor.The transmission line of the present invention is transmitted using main mould, and pattern is pure, the interference of other patterns is avoided, in coaxial line
3 rank round platform mating structures are used between rectangular waveguide, reduce the return loss of input port；Newly add between other output port
Isolated port is added, and its mating structure passes through sophisticated design, the isolation that can be obviously improved between each port.The present invention is applicable
There is great application value in millimeter wave frequency band, can also be extended to higher frequency.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of can be applied to the high-end broadband height of millimeter-wave frequency every
From degree multipath power distributor, constant amplitude is obtained with phase in each output port and there is the signal of high-isolation.
Technical scheme is used by the present invention solves above-mentioned technical problem：This includes one with Axial and radial power divider
Coaxial input mouth, a round platform mating structure, multiple rectangular waveguide output ports, branch's isolated port and its corresponding
Distribution structure.As input port, the other end connects a round platform mating structure for one end of coaxial line, TEM ripples from coaxial line one
End enters, and reaches round platform mating structure, TEM ripples are converted to the TE propagated in rectangular waveguide10Mould, then in isolation end cause for gossip
The isolation of existing output signal, finally in the abundant multiple signals with phase of rectangular waveguide port output.
It is further that in the same Axial and radial power divider, the coaxial round platform mating structure to rectangular waveguide is 3 ranks
Round platform, and its radius increases successively from top to bottom, so the structure of gradual change ensure that coaxial TEM mode to rectangular waveguide successively
TE10Smoothly transit, reduce return loss, bandwidth of operation can also be increased.
It is further that in the same Axial and radial power divider, an end is added between any two output port
Mouth, i.e. isolated port.When being analyzed with even-odd mould analytic approach same Axial and radial power divider, its model structure can letter
Turn to the structure of four ports as shown in Figure 4.The principle of analogy waveguide magic T, signal are inputted by coaxial port, in two rectangles
Waveguide port exports two paths of signals of the constant amplitude with phase, and the port added between two output ports is isolated port, so can be real
The high degree of isolation of signal between existing two output ports.
It is further the coupling part of each output port and isolated port in the same Axial and radial power divider, if
A mating structure is counted, specifically by a tuning cylinder, a division board and one are formed by circular cone by repeatedly cutting
Class vertebral body structure composition.By the design of precision so that the Signal segregation degree between output port greatly increases, and also ensure that
Input and isolated port have good reflectance factor.
Beneficial effects of the present invention：First, input use coaxial line, has anti-interference, is lost low, it is excellent that working band is wide etc.
Point；2nd, matched between coaxial line and rectangular waveguide using 3 rank round platforms, excess smoothness, reduce the return loss of input port,
Bandwidth of operation is added, while round platform mating structure is very simple, easy to process and assembling；3rd, transmission line is passed using main mould
It is defeated, the pure interference for avoiding other patterns of pattern；4th, new isolated port is with the addition of between the output ports, and it matches knot
Structure passes through sophisticated design, the isolation being obviously improved between each port, stablizes the return loss of each port, makes energy in difference
Stably transmitted in order between port, add the stability and reliability of system.
Brief description of the drawings
Fig. 1 is the structural representation of the invention based on the coaxial radial waveguide power divider of high-isolation；
Fig. 2 is the structure top view of the invention based on the coaxial radial waveguide power divider of high-isolation；
Fig. 3 (a) is that the present invention is based on model simplification overall schematic in the coaxial radial waveguide power divider of high-isolation,
(b) it is that the present invention is based on model simplification left view in the coaxial radial waveguide power divider of high-isolation；
Overall return loss is bent when Fig. 4 is present invention radial waveguide power divider n=14 coaxial based on high-isolation
Line；
P2 ports and remaining output when Fig. 5 is radial waveguide power divider n=14 coaxial based on high-isolation of the invention
The isolation curve map of port；
Fig. 6 coaxially arrives each output port when being radial waveguide power divider n=14 coaxial based on high-isolation of the invention
Coupling amount curve map；
Description of symbols in Fig. 1：Input port 101, output port P1, P2 ..., Pn.Description of symbols in Fig. 2：Isolated port
Q1, Q2 ..., Qn；Description of symbols in Fig. 3 (a)：Subdivision subdivision input port 401, output port 402 and 403, isolated port
404；Description of symbols in Fig. 3 (b)：The first rank of 3 ranks matching round platform 301, second-order 302, the 3rd rank 303, isolated port matching knot
Structure 304,305 and 306, wherein 304 be cone repeatedly cut the class vertebral body structure of formation, 305 be isolation baffle plate, 306 be tune
Humorous cylinder.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings.
As shown in figure 1, the high isolation radial direction power divider is used as input port, coaxial line by the port 101 of coaxial line
The other end connect 3 ranks matching round platform 301,302,303, matching round platform reconnect output rectangular waveguide, export rectangular waveguide
Output port is P1, P2 ..., Pn.As shown in Fig. 2 there are isolated port Q1, Q2 ..., Qn between output port.As shown in Fig. 3 (b),
Each isolated port is repeatedly cut the class vertebral body structure 304 formed, isolation baffle plate 305, cylindrical hole 306 by cone in the presence of one
The mating structure of composition.
In the above-described embodiment, input signal pattern is coaxial line main mould TEM ripples, and TEM ripples are defeated by coaxial line port 101
Enter, the rank round platform mating structure 301 of the other end of coaxial line connection three, 302,303, TEM ripples are transferred to up to round platform through coaxial line
Distribution structure, TEM ripples are converted to the TE that can be propagated in rectangular waveguide10Mould, in the same Axial and radial power divider, coaxially arrive
The round platform mating structure of rectangular waveguide is 3 rank round platforms, and its radius increases successively from top to bottom, and the structure of so gradual change successively is protected
Coaxial TEM mode has been demonstrate,proved to rectangular waveguide TE10Smoothly transit, effectively can stably be converted into the power of TEM ripples can be in rectangle
The TE transmitted in waveguide10Mould, reduce return loss, add bandwidth of operation, and round platform mating structure is simple in construction, is easy to add
Work and assembling.
TE after inverted10Mould is divided into multiple signals to be transmitted to each output port (P1, P2 ..., Pn), in any two
A port, i.e. isolated port (Q1, Q2 ..., Qn) are added between output port.With even-odd mould analytic approach to same Axial and radial work(
When rate distributor is analyzed, its model structure can be reduced to the structure of four ports as shown in Fig. 3 (a).Analogy ripple
Magic T principle is led, signal is inputted by coaxial port, and two paths of signals of the constant amplitude with phase is exported in two rectangular waveguide ports, and two is defeated
The port added between exit port is isolated port, can so realize the high degree of isolation of signal between two output ports.
The coupling part of each output port and isolated port in the same Axial and radial power divider, devise a matching
Structure, specifically by a tuning cylinder 306, a division board 305 and one are by circular cone by repeatedly cutting the class vertebra formed
Body structure 304 forms, and mating structure is by accurate design so that and the Signal segregation degree between output port greatly increases,
It ensure that input and isolated port have good reflectance factor.Output signal at isolated port via isolated port and
The guiding of the mating structure of sophisticated design, can efficient stable in an orderly manner from output port P1, P2 ..., Pn is with constant amplitude with phase
Mode exports, and has good isolation between signal.
Embodiment
In this embodiment, structure as shown in Figure 1, radial waveguide power divider work in W frequency ranges, and working frequency 87~
97GHz, input port 101 are coaxial line, and the outer radius of coaxial line is 0.5mm, inside radius 0.2mm；Output port P1,
P2 ..., Pn are BJ100 standard rectangular waveguides, size 2.54mm × 1.27mm.TEM ripples signal is inputted by port 101, by same
3 rank gradual change round platform mating structures of axis another port connection are converted to the TE that can be propagated in rectangular waveguide BJ10010Mould, then
Through isolator Q1, Q2 ..., the mating structure collective effect between Qn and output port and isolated port so that output signal
Stable in order, constant amplitude in phase exports through output port P1, P2 ..., Pn.
In this example, n=14, the return loss plot of overall high-isolation radial direction power divider is as shown in figure 4, in work
Make to be respectively less than -20dB in 87~97GHz of frequency band；The isolation of output port P2 and remaining output port is as shown in figure 5, except just
To the P9 interport isolations of P2 ports outside -9dB, the isolation overwhelming majority of remaining port is both less than -15dB；Each port coupling
Simulation result is measured as shown in fig. 6, the coupling amount of each output port is almost equal, near -11.5dB, each curve of output amplitude
Degree of unbalancedness is less than 0.2dB, and the coupling amount of each output port is theoretically -10log (n), as n=14, coupling amount for -
11.46dB, simulation result is basically identical with theory, and because each port is on coaxial line Central Symmetry, thus each output letter
Number there is good balancing each other property of width.There is great application value in the power synthesis circuit of the invention millimeter wave frequency band,
It can be extended to higher frequency.
Claims (4)
1. high-isolation includes coaxial input mouth with Axial and radial power divider, the same Axial and radial power divider
(101) and multiple power distribution ports (P1, P2, Pn), TEM ripples are defeated via the coaxial line of the power divider
Inbound port enters, and matching round platform (301,302,303) by a 3 rank gradual changes is converted to the TE that can be transmitted in rectangular waveguide10
Mould, respectively again by the common of multiple isolated ports (Q1, Q2 ..., Qn) and its mating structure (being formed by 304,305,306)
Effect, be divided into multichannel amplitude equal phase it is identical and with high isolation degree signal via power distribution port (P1,
P2, Pn) output.
2. high-isolation as claimed in claim 1 is the same as Axial and radial power divider, it is characterised in that：The radial direction power splitter
Mating structure (301,302,303) is made up of three layers of thin round platform, and distribution way n >=2, the radius of thin round platform increases successively from top to bottom
Greatly, it ensure that coaxial TEM mode to rectangular waveguide TE using the structure of gradual change successively10Mould smoothly transits, and can reduce echo damage
Consumption, can also increase bandwidth of operation.
3. high-isolation as claimed in claim 1 is the same as Axial and radial power divider, it is characterised in that：The radial direction power distribution
Device with the addition of an isolated port between any two output port, such as the isolated port Q2 between P1 and P2, its model energy
Four port organizations as shown in Fig. 3 (b) are reduced to, the principle of analogy waveguide magic T, signal is inputted by coaxial port, two
Rectangular waveguide port exports two paths of signals of the constant amplitude with phase, can so realize the high degree of isolation of signal between two output ports.
4. high-isolation as claimed in claim 1 is the same as Axial and radial power divider, it is characterised in that：Isolated port (Q1,
Q2 ..., Qn) mating structure between output port (P1, P2 ..., Pn) repeatedly cuts the class vertebra formed by a cone
Body structure (304), an isolation baffle plate (305), tuning cylindrical hole (306) composition, mating structure are passed through sophisticated design, made
The Signal segregation degree obtained between output port greatly increases, and also ensure that input and isolated port have good reflection system
Number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830894.0A CN107706493A (en) | 2017-09-15 | 2017-09-15 | High-isolation is the same as Axial and radial power divider |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830894.0A CN107706493A (en) | 2017-09-15 | 2017-09-15 | High-isolation is the same as Axial and radial power divider |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710830894.0A Pending CN107706493A (en) | 2017-09-15 | 2017-09-15 | High-isolation is the same as Axial and radial power divider |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380178A (en) * | 2019-07-29 | 2019-10-25 | 中国电子科技集团公司第五十五研究所 | Millimeter wave radial direction multipath power distributor based on micromachining processing |
| CN110649358A (en) * | 2019-11-04 | 2020-01-03 | 南京屹信航天科技有限公司 | Radial power divider |
| CN110890613A (en) * | 2019-04-23 | 2020-03-17 | 中国工程物理研究院电子工程研究所 | Ultra-wideband waveguide radial power combiner |
| CN112928421A (en) * | 2021-01-21 | 2021-06-08 | 电子科技大学 | Design method of multi-path radial power divider/synthesizer |
| CN113224493A (en) * | 2021-04-30 | 2021-08-06 | 电子科技大学 | N-path waveguide space radial power distribution combiner based on coaxial TE01 mode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63300605A (en) * | 1987-05-29 | 1988-12-07 | Fujitsu Ltd | Power distributer/synthesizer |
| CN204375898U (en) * | 2014-11-13 | 2015-06-03 | 华南理工大学 | A kind of radial power divider/synthesizer of miniaturization of high isolation |
-
2017
- 2017-09-15 CN CN201710830894.0A patent/CN107706493A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63300605A (en) * | 1987-05-29 | 1988-12-07 | Fujitsu Ltd | Power distributer/synthesizer |
| CN204375898U (en) * | 2014-11-13 | 2015-06-03 | 华南理工大学 | A kind of radial power divider/synthesizer of miniaturization of high isolation |
Non-Patent Citations (1)
| Title |
|---|
| XIAO LI 等: ""A New Planar Compatible Power Combiner Based on Radial Waveguide"", 《2014 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION PROBLEM-SOLVING》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110890613A (en) * | 2019-04-23 | 2020-03-17 | 中国工程物理研究院电子工程研究所 | Ultra-wideband waveguide radial power combiner |
| CN110380178A (en) * | 2019-07-29 | 2019-10-25 | 中国电子科技集团公司第五十五研究所 | Millimeter wave radial direction multipath power distributor based on micromachining processing |
| CN110380178B (en) * | 2019-07-29 | 2021-07-13 | 中国电子科技集团公司第五十五研究所 | Millimeter wave radial multi-path power divider based on silicon micromachining |
| CN110649358A (en) * | 2019-11-04 | 2020-01-03 | 南京屹信航天科技有限公司 | Radial power divider |
| CN110649358B (en) * | 2019-11-04 | 2024-03-19 | 南京屹信航天科技有限公司 | Radial power distributor |
| CN112928421A (en) * | 2021-01-21 | 2021-06-08 | 电子科技大学 | Design method of multi-path radial power divider/synthesizer |
| CN112928421B (en) * | 2021-01-21 | 2022-03-15 | 电子科技大学 | Design method of multi-path radial power divider/synthesizer |
| CN113224493A (en) * | 2021-04-30 | 2021-08-06 | 电子科技大学 | N-path waveguide space radial power distribution combiner based on coaxial TE01 mode |
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