CN107275741A - A kind of new millimeter waveguide radial direction power synthesis circuit - Google Patents
A kind of new millimeter waveguide radial direction power synthesis circuit Download PDFInfo
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- CN107275741A CN107275741A CN201710449654.6A CN201710449654A CN107275741A CN 107275741 A CN107275741 A CN 107275741A CN 201710449654 A CN201710449654 A CN 201710449654A CN 107275741 A CN107275741 A CN 107275741A
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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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Abstract
Eight power combiners based on fan-shaped waveguide of arranged radially are combined into all the way by a kind of new millimeter waveguide radial combiner of the present invention, the synthesizer using eight road rectangular waveguide Y-branches.Power combiner of the present invention is compared with traditional power combiner based on circular waveguide radial direction framework, branch's road port amplitude-phase consistency can be more preferably, in addition the circuit also has miniaturization, and wide band feature synthesizes demand available for millimeter wave Multi-channel high-efficient rate high power is met.
Description
Technical field
The present invention relates to microwave and millimeter wave technical field, more particularly to millimeter wave power synthesis technical field.
Background technology
As microwave and millimeter wave microelectric technique is in carrying out in a deep going way that system is applied, all solid state high power hair of microwave and millimeter wave
Penetrate system has turned into the mark of modern advanced microwave and millimeter wave communication and radar.Generally, microwave and millimeter wave high power obtains main
There are two approach：Vacuum electronic power device and solid state power device.Electron tube includes traditional prionotron and travelling-wave tubes
Power amplifier, although they can be provided realizes that difficulty is larger in high-power output, technique, it is impossible to produce in batches, and
And operating voltage is very high (tens of kilovolts), volume is big, and reliability is low, and short life, the linearity is low.Disadvantage mentioned above limits electrovacuum
Application of the device in microwave and millimeter wave field.Solid-state devices supply voltage is low, and reliability is high, and small volume is lightweight, user
Just, so the application of solid-state devices is increasingly extensive.But relative to electron tube, although technique, material and design level be not
Disconnected development, the power output of single solid-state devices is still limited, and heat dissipation problem, the limitation of resistance matching problem, makes its list
Solely application is often up to less than index request, thus generally uses multiple devices, using power synthetic technique, so as to reach high-power
The purpose of output.
In recent years, the power synthetic technique of microwave and millimeter wave has obtained swift and violent development, various power distribution combiner circuits
It is suggested and applies in succession.Traditional power synthesis circuit has Wilkinson power splitters, Lange couplers and branch line coupling
Device etc., these traditional synthesis/distributor circuits are due to belonging to multistage combiner circuit, and as synthesis way increase combined coefficient is fast
Prompt drop is low, can not meet and be actually needed in the occasion of high combined coefficient.It is various new in order to solve the problem of combined coefficient is low
The power synthetic technique of type is continued to bring out, and the wherein power combing of free space wave and quasi-optical space power synthesis has been obtained extensively
General research and development.Free-space power synthetic technology is appropriate only for obtaining high power, this kind of skill in spatial power demand point
Art is not easy to realize the solid-state high-power output of standard interface, is unfavorable for system application；It can be achieved that there is standard output mouthful
Quasi-optical space power synthesis technology also face that synthesis efficiency of energy collection is low, higher modes influence in synthesis network, synthesis
The problems such as network narrow bandwidth, radiation loss.Therefore, meet the tendency of in space power synthesis technology of the nineties based on waveguide and
It is raw.Space power synthesis technology combined coefficient based on waveguide is higher, and bandwidth is relatively wide, can effectively prevent radiation loss, tool
There is a good heat dispersion, it is simple in construction the advantages of easily realize, relatively well make up quasi-optical power synthetic technique and free space
The deficiency of power synthetic technique.Meanwhile, it can not be limited by working frequency and waveguide dimensions, work in microwave, millimeter wave
And higher submillimeter wave frequency range, efficiently solve the problem that high-power output is realized in higher frequency section.
The characteristics of waveguiding structure has low-loss and high power capacity, so in High Power Microwave System and millimeter-wave systems
In, work(point/combiner circuit of waveguide can not be substituted.Waveguiding structure and traditional work(point/combiner circuit are (for example
Wilkinson power splitters, branch line coupler etc.) compare, there is unrivaled advantage.Radial waveguide synthesizer uses multichannel
Waveguide radial direction framework, can realize that multichannel is synthesized in one-level waveguide circuit, with low-loss, multiple branch circuit feature, and can have height
Power capacity characteristic, is a kind of microwave and millimeter wave Multi-channel high-efficient rate high power polymer fabric.It is most common in radial waveguide power combing
Be be based on circular waveguide radial direction power combing, it realizes evenly distributing for power using the circumference symmetry of circular waveguide TE01 moulds,
But circular waveguide TE01 patterns are the 5th higher modes in circular waveguide, it is necessary to suppress structure to obtain by low order mode.
In practical application, the degree of purity of TE01 patterns is difficult to be guaranteed in circular waveguide, and unpurified TE01 patterns can deteriorate circular waveguide
The power combing branch path Phase amplitude-matched performance of radial direction framework.
The present invention proposes a kind of new millimeter waveguide radial direction framework power combiner, and the synthesizer is by eight sectors
Waveguide power synthesizer coordinates eight road rectangular waveguide Y-branches to constitute, and branch path is can guarantee that again while retaining radial structure advantage
The amplitude-phase consistency of port, therefore can be used for realizing reliable and stable microwave and millimeter wave Multi-channel high-efficient rate high power synthesis.
The content of the invention
In view of the defect in prior art, the technical problems to be solved by the invention are realized a kind of based on radial direction framework
Multichannel waveguide power synthesizes network, and the problem of avoid circular waveguide radial direction framework power combing branch's road port amplitude phase unbalance.
Fig. 1 is block mold figure of the present invention, and Fig. 2 is based on fan-shaped waveguide power combiner, the road square waves of Tu3Wei eight to be single
Lead E faces Y-branch.As shown in Fig. 2 the power combiner of the present invention based on fan-shaped waveguide mainly includes：One section of 45 ° of waveguide
Radial transmission line, electromagnetic field is radially transmitted in radial waveguide；The fan-shaped rank raised up positioned at 45 ° of waveguide RADIAL bottoms
Terraced short circuit face；Close to 45 ° of waveguide RADIAL bottoms, the multichannel rectangular waveguide of arranged radially；It is connected with radial transmission line top
45 ° of fan-shaped waveguides, electromagnetic field is transmitted vertically in fan-shaped waveguide；Fan-shaped waveguide is to rectangular waveguide transition structure.By branch path
The N roads amplitude of rectangular waveguide mouthful feed-in is equal, phase identical rectangular waveguide TE10 mode signals are fed into by 45 ° of RADIALs
Fan-shaped waveguide, and the synthesis fan-shaped waveguide TE01 moulds in fan-shaped waveguide, then be transformed into by sector to rectangular waveguide transition structure
Rectangular waveguide TE10 patterns are exported.
As shown in Figure 1,3, synthesizer of the present invention by eight road rectangular waveguide Y-branches by eight bases of arranged radially
It is combined into all the way in the power combiner of fan-shaped waveguide.
Of the present invention to be based on fan-shaped waveguide power combiner, rectangular waveguide one end of multichannel arranged radially stretches to 45 °
Radial waveguide, adjacent rectangular waveguide is shared in junction broadside two-by-two；The rectangular waveguide other end to extending around, and narrow side by
Cumulative adduction reaches standard rectangular duct height b, and is connected with standard rectangular waveguide, forms multiple standard rectangular waveguide arms；
When branch's way is more than 2, the narrow side size of rectangular waveguide for being arranged in 45 ° of radial waveguide both sides should be slightly bigger than and be arranged in pars intermedia
The rectangular waveguide divided.
In power combiner of the present invention, the short-circuit face of ladder of 45 ° of radial waveguide bottoms is to realize 45 ° of radial directions
The matched well of waveguide mouthful, the short pavement structure of the ladder and shape can be obtained by electromagnetic-field simulation optimization.
Power combiner feature of the present invention is：(1) synthesis number of branches is more, in theory can be by increasing by 45 °
Radial waveguide radius R and reduction junction rectangular waveguide height b realize the power combiner of more circuitry numbers；(2) multichannel work(
Rate synthesis is realized by one-level metal waveguide circuit network, with (3) high power capacity the characteristics of being lost low, usual metal waveguide
Power capacity is higher than other integrated transmission-lines.(4) amplitude-phase consistency of good tributary port.Compared to circular waveguide TE01 moulds
Formula, the TE01 patterns of fan-shaped waveguide are compared with low order mode, when fan-shaped waveguide angle is less than 45 °, fan-shaped waveguide in fan-shaped waveguide
TE01 moulds are fan-shaped waveguide main moulds.Avoiding problems the power combing based on circular waveguide radial direction framework because of circular waveguide TE01 patterns not
The problem of branch path amplitude-phase is inconsistent caused by pure.
The technique effect of the design of the present invention, concrete structure and generation is made into one below with reference to accompanying drawing and embodiment
Step explanation, to be fully understood from the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is power combiner of the present invention and the overall construction drawing of embodiment.
Fig. 2 is that work(of the present invention is based on fan-shaped waveguide multiplexer and example structure figure.
Fig. 3 is eight roads rectangular waveguide E faces Y-branch structure chart of the present invention.
Fig. 4 is total port reflectance factor and each rectangular waveguide tributary port-total port transmission system of the embodiment of the present invention
Number amplitude.
Fig. 5 is each rectangular waveguide tributary port-total port transmission coefficient phase of the embodiment of the present invention.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings：The present embodiment is with technical solution of the present invention premise
It is lower to be implemented, give detailed embodiment and specific operating process, but protection scope of the present invention be not limited to it is following
Embodiment.
As shown in figure 1, this specific embodiment is No. 16 power combiners of the 8 mm wave band based on radial direction framework.
In embodiment, eight power combiners based on fan-shaped waveguide of arranged radially are combined into all the way by rectangular waveguide E face Y-branches, note
For port 1.Fan-shaped waveguide radius R=6.8mm, 16 tunnel gradual change rectangular waveguide broadside size a is constant, is 7.112mm；Narrow side size
It is=2.3mm in junction, and is gradient to b=3.556mm.Such 16 road rectangular waveguide port and standard rectangular waveguide BJ320
Size (7.112mm × 3.556mm) is identical, is designated as port 2-17 successively here.The short-circuit face of 45 ° of radial waveguide bottom ladders is by one
Level ladder is constituted, ladder height h1=2.5mm, diameter d1=3mm.
Fig. 4,5 be the embodiment of the present invention electrical characteristics design sketch, Fig. 4 be total port stickogram and each square wave
Lead tributary port-total port transmission coefficient amplitude, it can be seen that in 31.5GHz-38.5GH frequency ranges, the reflectance factor of total port
Better than -20dB.The transmission coefficient amplitude of 16 tunnel branch road ports amplitude imbalance in 31-38GHz frequency range is less than
0.2dB, insertion loss is less than 0.2dB.Fig. 5 is transmission coefficient phase of total port to 16 tunnel branch road ports, in 31-38GHz
Each rectangular waveguide tributary port-total port transmission coefficient almost has identical phase relation in frequency range.
As can be seen from the above results, power combiner of the present invention realizes multichannel power in eight millimeter wave frequency bands and closed
Into function, and synthesizer tributary port has good amplitude-phase consistency.The power of the present invention it can be seen from embodiment
Synthesizer can be used for realizing reliable and stable millimeter wave frequency band Multi-channel high-efficient rate high power.
Preferred embodiment of the invention described in detail above.It should be appreciated that the ordinary skill of this area is without wound
The property made work just can make many modifications and variations according to the design of the present invention.Therefore, all technical staff in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (6)
1. a kind of new millimeter waveguide radial direction power distribution/combiner circuit, it is characterised in that the power distribution/combiner circuit
Eight road rectangular waveguide E faces Y-branches are constituted with power combing/distributor based on fan-shaped waveguide of eight arranged radiallys.Its
In, power combing/distributor based on fan-shaped waveguide mainly includes：One section of 45 ° of waveguide radial transmission line；Positioned at 45 degree of waveguide footpaths
To line bottom, the fan-shaped stepped short-circuit face raised up；Close to 45 ° of waveguide RADIAL bottoms, the multichannel square wave of arranged radially
Lead；45 degree of fan-shaped waveguides being connected with radial transmission line；And fan-shaped waveguide is to rectangular waveguide excessive structural.
2. require described based on fan-shaped waveguide power synthesis circuit, rectangular waveguide one end of multichannel arranged radially according to right 1
45 ° of radial waveguides are stretched to, adjacent rectangular waveguide is shared in junction broadside two-by-two；The rectangular waveguide other end to extending around,
And narrow side gradually increases and reaches standard rectangular duct height b, and it is connected with standard rectangular waveguide, forms multiple standard rectangular ripples
Lead branch road；When branch's way is more than 2, the narrow side size of rectangular waveguide for being arranged in 45 ° of radial waveguide both sides should be slightly bigger than arrangement
Rectangular waveguide in center section.As number of branches increases, in junction, the height of rectangular waveguide will reduce, and can be fabricated to
The more power combiners of branch's way, realize miniaturization multiple branch circuit power synthesis network.
3. according to the requirement of right 1,2 it is described based on fan-shaped waveguide power synthesis circuit, it is characterised in that 45 ° of radial transmission line bottoms
The short-circuit face of the ladder at end is made up of inwardly protruded multistage fan-shaped halfpace, and halfpace series, halfpace height, halfpace radius can be according to works
Working frequency and bandwidth requirement optimization are obtained.
4. according to the requirement of right 1,2 it is described based on fan-shaped waveguide power synthesis circuit, it is characterised in that rectangular waveguide directly with
Fan-shaped waveguide connection composition fan-shaped waveguide is to the excessive structural of rectangular waveguide, and rectangular waveguide is positioned at fan-shaped waveguide center, one
Fan-shaped waveguide, rectangular waveguide broadside and fan-shaped waveguide diameter parallel are stretched in end.The other end extends radially outwardly, rectangular waveguide broadside
For standard waveguide size, narrow side optimizes in the case where ensureing the requirement of transmission coefficient to be obtained.
5. according to the described power synthesis circuit based on sector of the requirement of right 1,2,3, it is characterised in that the power distribution/synthesis
The N roads amplitude of feed-in in circuit is equal, phase identical rectangular waveguide TE10 mode signals are fed into sector by 45 ° of RADIALs
Waveguide, and the synthesis fan-shaped waveguide TE01 moulds in fan-shaped waveguide, then change rectangular by sector to rectangular waveguide transition structure
Waveguide TE10 patterns are exported.Wherein electromagnetic field is radially transmitted in 45 degree of radial waveguides, is transmitted vertically in fan-shaped waveguide.
6. described eight tunnels (three-level) rectangular waveguide E faces Y-branch is required according to right 1, it is characterised in that eight road rectangular waveguide Y points
Eight power combiners based on fan-shaped waveguide of arranged radially are combined into all the way by branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710449654.6A CN107275741B (en) | 2017-06-14 | 2017-06-14 | Novel millimeter wave waveguide radial power synthesis circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710449654.6A CN107275741B (en) | 2017-06-14 | 2017-06-14 | Novel millimeter wave waveguide radial power synthesis circuit |
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| CN107275741B CN107275741B (en) | 2020-07-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420470A (en) * | 2020-11-16 | 2021-02-26 | 电子科技大学 | Four-section type medium loading cyclotron traveling wave tube high-frequency interaction structure |
| CN112615123A (en) * | 2020-12-16 | 2021-04-06 | 电子科技大学 | Angular power division waveguide structure applied to medium-loaded gyrotron traveling wave tube |
| CN112928421A (en) * | 2021-01-21 | 2021-06-08 | 电子科技大学 | Design method of multi-path radial power divider/synthesizer |
| CN114039184A (en) * | 2021-10-26 | 2022-02-11 | 武汉星伴通信设备有限责任公司 | Multipath radial power synthesis amplifier |
| CN114512387A (en) * | 2021-12-31 | 2022-05-17 | 电子科技大学 | Distributed radiation coupling loss circuit applied to gyrotron traveling wave tube |
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| EP1925056B1 (en) * | 2005-09-12 | 2014-04-09 | Agence Spatiale Européenne | Waveguide filter for microwaves with non-parallel walls |
| CN105322265A (en) * | 2015-11-17 | 2016-02-10 | 电子科技大学 | Fan-shaped waveguide-based power distributor/synthesizer |
| CN105322266A (en) * | 2015-11-17 | 2016-02-10 | 电子科技大学 | Circular waveguide higher mode TM01 based radial waveguide power synthesis/distributor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420470A (en) * | 2020-11-16 | 2021-02-26 | 电子科技大学 | Four-section type medium loading cyclotron traveling wave tube high-frequency interaction structure |
| CN112420470B (en) * | 2020-11-16 | 2022-03-15 | 电子科技大学 | Four-section type medium loading cyclotron traveling wave tube high-frequency interaction structure |
| CN112615123A (en) * | 2020-12-16 | 2021-04-06 | 电子科技大学 | Angular power division waveguide structure applied to medium-loaded gyrotron traveling wave tube |
| CN112928421A (en) * | 2021-01-21 | 2021-06-08 | 电子科技大学 | Design method of multi-path radial power divider/synthesizer |
| CN114039184A (en) * | 2021-10-26 | 2022-02-11 | 武汉星伴通信设备有限责任公司 | Multipath radial power synthesis amplifier |
| CN114512387A (en) * | 2021-12-31 | 2022-05-17 | 电子科技大学 | Distributed radiation coupling loss circuit applied to gyrotron traveling wave tube |
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| CN107275741B (en) | 2020-07-10 |
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