CN105322266A - Circular waveguide higher mode TM01 based radial waveguide power synthesis/distributor - Google Patents
Circular waveguide higher mode TM01 based radial waveguide power synthesis/distributor Download PDFInfo
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- CN105322266A CN105322266A CN201510791252.5A CN201510791252A CN105322266A CN 105322266 A CN105322266 A CN 105322266A CN 201510791252 A CN201510791252 A CN 201510791252A CN 105322266 A CN105322266 A CN 105322266A
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Abstract
The invention discloses a waveguide multi-path power synthesis/distributor applicable to a millimeter wave frequency high end. The radial waveguide power synthesis/distributor is based on a circular waveguide higher mode TM01 mode; the radial waveguide power synthesis/distributor comprises a rectangular waveguide input port, a mode converter, a circular waveguide, a matching structure and a plurality of (n is greater than or equal to 2) rectangular waveguide output ports; a TM01 mode is excited in the circular waveguide by a TE10 mode in the rectangular waveguide through the mode converter so as to realize space-time symmetry of the field distribution on the circular waveguide cross section; the mode conversion and energy distribution from the TM01 mode in the circular waveguide to the TE10 mode of the n rectangular waveguides can be realized through the multi-path power distributor; and the signals of each output port are uniform in amplitude and the same in phase. The radial waveguide power synthesis/distributor avoids the use of coaxial TEM modes; and the radial waveguide power synthesis/distributor has the advantages of larger circuit dimensions, lower processing requirement, high power capacity and low loss.
Description
Technical field
The present invention relates to millimeter wave power synthesis/distribution technique field, be specifically related to a kind of based on circular waveguide higher mode TM
01radial power combing/distributor.
Background technology
Millimeter wave has that wave beam is narrow, bandwidth, antijamming capability are strong and the advantage such as information capacity is large and be subject to all circles and pay close attention to, and millimeter-wave power amplifiers is the critical component of millimeter-wave systems, be widely used in fields such as military radar system, radio astronomy and space and wireless high-speed transmission, have huge using value and market prospects.Benefit from the development of the technology such as semi-conducting material, technique, solid-state power amplifier fan-out capability is greatly improved, but the power output of single solid state device is still limited.Adopt the power synthetic technique of combination multiple coherent amplifier the power output capacity of amplifier can be promoted at double, thus reach the object replacing middle-size and small-size travelling wave tube, the advantages such as volume is little, lightweight, reliability is high, the life-span is long, voltage is low, failure rate is low can be realized.
The key of power synthetic technique is the power combing/distribution network that will realize multichannel number, broadband, low-loss, high balance, one road input signal is divided into some roads tributary signal, again the tributary signal power synthesis network after amplification is synthesized, the power output of final system equals each solid state device power output sum, thus realizes the multiplication of power output.
Physically, the angular orientation of radial waveguide has centre symmetry, and for each tributary signal, the path of process is equal, can realize good amplitude balance.Radial waveguide belongs to waveguide structure simultaneously, has the advantages such as insertion loss is little, power capacity is large, amplifies in combiner circuit have huge advantage at millimeter wave power.
YazhouDong, the people such as Shi-weiDong have developed a kind of multichannel combining power amplifier module, [" 60GHzLowLoss; AmplitudeandPhaseBalancedRadialWaveguidePowerCombiner " .], the core circuit of this section of multi-channel power synthesis amplifier is a same Axial and radial power divider based on TEM mould, be first coaxial line by rectangular waveguide transition, radial power divider is encouraged utilizing coaxial line TEM mould, each output port can obtain the signal of constant amplitude homophase, after solid state device amplifies, then be combined into a road.In this circuit, the size of coaxial line is very little, and need very harsh processing and matching requirements, manufacturing cost is high and rate of finished products is low, and when working frequency range is higher, size is less, and this structure is just difficult to realize more.In addition, the power capacity of coaxial line is much smaller than hollow waveguide, and loss, much larger than hollow waveguide, is therefore not suitable for high-power use.
The present invention adopts circular waveguide to replace coaxial line structure, utilizes the higher mode TM in circular waveguide
01mould is as mode of operation, and the advantage such as centre symmetry, the power capacity with field distribution are large, loss is little and circuit size is large, is applicable to the application of millimeter wave high end frequency.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly can be applicable to the high-end waveguide multichannel power combing/distributor of millimeter-wave frequency, and Land use models transducer has encouraged TM in circular waveguide
01mould.TM
01mould is space symmetr mould, therefore can obtain the signal of constant amplitude homophase at each distribution port.
The present invention solves the problems of the technologies described above adopted technical scheme: this radial waveguide power combing/distributor comprises a rectangular waveguide input port, a mode converter, a circular waveguide, a matching structure and several (n >=2) rectangular waveguide output ports.TE in rectangular waveguide
10mould, by patten transformation, plays a TM at circular waveguide underexcitation
01mould, thus the time symmetry and the spatial symmetry that realize field distribution on circular waveguide cross section simultaneously; This circular waveguide input port, matching structure and several (n>=2) rectangular waveguide output ports, can realize TM
01mould is to n rectangular waveguide TE
10the patten transformation of mould and constant amplitude homophase power division.
Further, described rectangular waveguide is the waveguide of BJ900 standard rectangular.
Further, described mode converter matching structure encourages between mouth, for encouraging TM at rectangular waveguide and circular waveguide
01mould.
Further, the input signal of described radial power combing/distributor is TM
01mould, is divided into the TE of n>=2 road rectangular waveguide
10mould, the constant amplitude homophase of each output port.Wherein matching structure is a thin large round platform.
Beneficial effect of the present invention: this radial waveguide power combing/distributor Land use models conversion realizes input rectangular waveguide TE
10mould is to circular waveguide TM
01the conversion of mould.TM in circular waveguide
01the field structure of mould is spacetime symmetry about the center of circle, can be used in radial power combing/distributor, obtains the tributary signal of n road constant amplitude homophase.This invention is compared with using the TEM mould of coaxial line, and the size of its benefit mainly circuit is larger, reduce processing request, and power capacity is large, loss is little, is particularly useful for millimeter wave high end frequency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the radial waveguide power combing/distributor that the present invention is based on circular waveguide higher mode TM01;
Fig. 2 the present invention is based on the distributor schematic diagram in the radial waveguide power combing/distributor of circular waveguide higher mode TM01;
Fig. 3 is the curve chart of the radial waveguide power combing/distributor that the present invention is based on circular waveguide higher mode TM01;
Fig. 4 is that the radial waveguide power combing/distributor that the present invention is based on circular waveguide higher mode TM01 is applied to power synthesis circuit schematic diagram;
Fig. 5 is the curve chart that the radial waveguide power combing/distributor that the present invention is based on circular waveguide higher mode TM01 is applied to power synthesis circuit;
Description of symbols in Fig. 1: input port 1, mode converter coupling 2, circular waveguide 302, circular waveguide excitation mouth 301, output port P1, P2 ..., Pn.Description of symbols in Fig. 2: distributor 4, its section shows its matching structure 401,401 and comprises thin 402.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
As shown in Figure 1, this radial waveguide power combing/distributor 1 is by circular waveguide 302 one end connection mode conversion portion 2, and the other end connects distributor 4 and forms.Described radial waveguide power combing/distributor input port 1, output port is P1, P2 ..., Pn (n >=2).As shown in Figure 3, this distributor 4, comprises circular waveguide 302, delivery outlet P1, P2 ..., Pn (n >=2), matching structure 401, described matching structure 401 is made up of a thin structure 402.
In the above-described embodiment, input signal pattern is TE
10mould, from the input of rectangular waveguide port one, has encouraged TM by patten transformation at the excitation mouth 301 of circular waveguide 302
01mould.TM in circular waveguide
01mould, can be divided into some roads by distributor 4, and wherein matching structure 401 can make the reflection coefficient of input port 1 minimum, and described matching structure 401 is formed by thin 402, distributor 4 thus realize TM in circular waveguide 302
01mould to rectangular waveguide output port P1, P2 ..., Pn place TE
10the same phase partitioning of power constant amplitude of mould.
In addition, the delivery outlet of a pair radial waveguide power divider is docked, distribution and the synthesis of signal energy can be realized, can be widely used in microwave and millimeter wave power synthesis amplifier.
Embodiment
In this embodiment, structure as shown in Figure 1, radial waveguide power combing/distributor works in W frequency range, operating frequency 90 ~ 98GHz, input port 1, output port P1, P2 ... Pn is the waveguide of BJ900 standard rectangular, size 2.54mm × 1.27mm, and the diameter of circular waveguide 302 is 2.8mm.Signal is inputted by port one, is converted to the TM in circular waveguide 302 through mode converter
01mould, then be assigned to output port P1, P2 through distributor 4 constant amplitude homophase ..., Pn, in this example, n=12, the coupling amount of each output port is-10log (n)=-10.73dB.Each port is about circular waveguide 302 Central Symmetry, and have good width and to balance each other type, as shown in Figure 3, the return loss of input port is less than-19dB to the S parameter of each port.
The docking of the delivery outlet of a pair radial waveguide power combing/distributor just be may be used in power synthesis amplifier.As shown in Figure 4, output port microstrip probe is coupled on microstrip line, after the signal distributed amplifies by access amplifier, microstrip probe is coupled to each input of synthesizer again, just can realize signal power synthesis, its S parameter as shown in Figure 5, within the scope of 91-97GHz, reflection coefficient of port loss is less than-16dB, and insertion loss is less than 0.2dB.This invention, at millimeter wave, has great using value in the power synthesis circuit that especially millimeter-wave frequency is high-end.
Claims (4)
1. based on circular waveguide higher mode TM
01radial waveguide power combing/distributor, described power combing/distributor comprises rectangular waveguide input port (1), mode converter (2) and circular waveguide (3) and multiple power division port (P1, P2, Pn), described radial waveguide power combing/distributor is by a rectangular waveguide input signal, can be met about centrosymmetric toroidal field incentive condition at the excitation mouth (301) of circular waveguide (302) by mode converter, just can encourage circular waveguide TM
01mould.TM
01mould has spacetime symmetry on the cross section of circular waveguide (302), distributor (4) can be passed through and be divided into some roads, wherein matching structure (401) can make the reflection coefficient Minimal Realization input port (1) of input port (1) to output port (P1, P2,, Pn) the same phase partitioning of power constant amplitude.When inputting the signal of constant amplitude homophase at port (P1, P2, Pn), radial power combing/distributor just can obtain the synthesis of n road signal in port (1).
2. as claimed in claim 1 based on circular waveguide higher mode TM
01radial waveguide power combing/distributor, it is characterized in that: described rectangular waveguide is the waveguide of BJ900 standard rectangular.
3. as claimed in claim 1 based on circular waveguide higher mode TM
01radial waveguide power combing/distributor, it is characterized in that: the matching structure (401) in distributor (4) is made up of a thin large round platform (402), distribute way n>=2.
4. as claimed in claim 1 based on circular waveguide higher mode TM
01radial waveguide power combing/distributor be used for power synthesis circuit time, it is characterized in that: signal inputs from port (1), through n road amplifier amplify after, then by this radial power combing/distributor for the synthesis of, obtain composite signal from port (1).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356605A (en) * | 2016-10-26 | 2017-01-25 | 成都锐芯盛通电子科技有限公司 | TM01 mode-based radial waveguide power distributor and power combiner |
| CN107275741A (en) * | 2017-06-14 | 2017-10-20 | 电子科技大学 | A kind of new millimeter waveguide radial direction power synthesis circuit |
| CN107959098A (en) * | 2017-12-18 | 2018-04-24 | 中国电子科技集团公司第五十四研究所 | A kind of matched coaxial waveguide orthomode coupler of truncated cones |
| 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 |
| CN110488117A (en) * | 2019-08-06 | 2019-11-22 | 中国人民解放军63660部队 | Circular waveguide TE in a kind of inspection " flower-petal " mode converter01The method of mode purity |
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| US5256988A (en) * | 1992-09-01 | 1993-10-26 | Loral Aerospace Corp. | Conical transverse electromagnetic divider/combiner |
| CN102412434A (en) * | 2011-09-20 | 2012-04-11 | 杭州电子科技大学 | Multipath radial waveguide power combining amplifier |
| CN104393384A (en) * | 2014-11-13 | 2015-03-04 | 华南理工大学 | High-isolation small-sized radial power distributor/synthesizer |
| JP5749841B1 (en) * | 2014-08-12 | 2015-07-15 | 日本高周波株式会社 | Waveguide power combiner / distributor |
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2015
- 2015-11-17 CN CN201510791252.5A patent/CN105322266A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256988A (en) * | 1992-09-01 | 1993-10-26 | Loral Aerospace Corp. | Conical transverse electromagnetic divider/combiner |
| CN102412434A (en) * | 2011-09-20 | 2012-04-11 | 杭州电子科技大学 | Multipath radial waveguide power combining amplifier |
| JP5749841B1 (en) * | 2014-08-12 | 2015-07-15 | 日本高周波株式会社 | Waveguide power combiner / distributor |
| CN104393384A (en) * | 2014-11-13 | 2015-03-04 | 华南理工大学 | High-isolation small-sized radial power distributor/synthesizer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356605A (en) * | 2016-10-26 | 2017-01-25 | 成都锐芯盛通电子科技有限公司 | TM01 mode-based radial waveguide power distributor and power combiner |
| CN106356605B (en) * | 2016-10-26 | 2021-11-09 | 成都锐芯盛通电子科技有限公司 | Based on TM01Radial waveguide power divider and power combiner for modes |
| CN107275741A (en) * | 2017-06-14 | 2017-10-20 | 电子科技大学 | A kind of new millimeter waveguide radial direction power synthesis circuit |
| CN107959098A (en) * | 2017-12-18 | 2018-04-24 | 中国电子科技集团公司第五十四研究所 | A kind of matched coaxial waveguide orthomode coupler of truncated cones |
| 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 |
| CN110488117A (en) * | 2019-08-06 | 2019-11-22 | 中国人民解放军63660部队 | Circular waveguide TE in a kind of inspection " flower-petal " mode converter01The method of mode purity |
| CN110488117B (en) * | 2019-08-06 | 2021-08-13 | 中国人民解放军63660部队 | Inspection of circular waveguide TE in 'power-target' mode converter01Method of mode purity |
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Application publication date: 20160210 |