CN101958451B - Waveguide type integrated multipath power divider - Google Patents
Waveguide type integrated multipath power divider Download PDFInfo
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- CN101958451B CN101958451B CN 201010509692 CN201010509692A CN101958451B CN 101958451 B CN101958451 B CN 101958451B CN 201010509692 CN201010509692 CN 201010509692 CN 201010509692 A CN201010509692 A CN 201010509692A CN 101958451 B CN101958451 B CN 101958451B
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Abstract
The invention relates to a waveguide type integrated multipath power divider. The input signals of the multipath power divider are evenly distributed to 2N output ports through an N-grade network in a two-fork tree-shaped topological structure, and each two-fork tree branch node is realized by a 3dB branch line mixing bridge; the multichannel power divider is divided into an upper part and a lower part by using the plane that a narrow side of a waveguide locates as a divisional plane, wherein the upper part is a plane in a non-circuit structure and is used as one narrow side of the waveguide; the lower part comprises 2N rectangular waveguides which are arranged in the same plane in parallel and have same sections, and N is an integer greater than 0; two ends of each rectangular waveguide are respectively equipped with an input waveguide opening and an output waveguide opening; the input waveguide opening of one of the two rectangular waveguides in the centre is used as an input waveguide port, and the input waveguide openings of other rectangular waveguides are connected with matched loads; the wide sides of the rectangular waveguides are adjacent, and the interval is about the length of 1/4 wavelength at the centre frequency; and one or more branch line mixing bridges are contained between the adjacent two waveguides so that any branch can be sequentially driven by N mixing bridges to obtain 1/2N power output at the centre frequency.
Description
Technical field
The present invention relates to a kind of microwave waveguide type device, particularly a kind of waveguide type microwave power divider spare.
Background technology
Microwave power divider is exported the microwave signal of input equably from a plurality of ports, be a kind of microwave component commonly used, has important effect in microwave circuit.Microwave power divider has multiple basic structure, comprises Gysel power splitter, directional coupler, resistive power splitter, Wilkinson power splitter etc.These basic structures can realize the function (signal is inputted by an input, from two outputs with identical power stage) of 2 tunnel basic power division.
Not only need the power divider of two-way in the application of reality, and usually need the power division of multichannel.For example the focal plane array receiver need to be assigned to one road local oscillation signal a plurality of independently pixels equably.In these are used, can realize the multichannel power division with a plurality of independently two distributor cascades in theory.But a lot of practical difficulties have been done like this.At first be bulky, be difficult to consist of compact structure, be difficult to integrated; Next is that the waveguide flange tie point rolls up, and causes loss increase and reliability to reduce.
The multipath power distributor of integrated-type is integrated in a plurality of power distributing unit in same unit module, unit module only has input port and output port, can reduce to greatest extent like this volume and reduce tie point, having solved the problem of being brought by the standalone module splicing.Existing multipath power distributor uses a plurality of waveguides to be the stack manner of pencil, obtain coupling by the opening on input waveguide and output waveguide common wall, and realize power division, United States Patent (USP) Drost et al. " Compact N-way Waveguide Power Divider " for example, Patent Number 5196812.The shortcoming of this method is, due to a plurality of output waveguides be centered around input waveguide around, form a three-dimensional stacked structure, when waveguide dimensions reduces (corresponding higher operating frequency), processing becomes very difficult, to such an extent as to can't realize in millimere-wave band and submillimeter region.Therefore the difficulty of the machining that causes due to its complex structure of this method can't be scaled, the millimeter wave submillimeter wave field that can not be applied to develop rapidly at present.
Summary of the invention
Can't be applied to millimeter wave submillimeter wave frequency range in order to overcome the machining difficulty that existing waveguide type multipath power distributor causes due to its three-dimensional stacked mode, the invention provides a kind of new integrated multipath power divider, this power divider has the characteristic of accurate two dimension, be easy to machining, can be applied to millimeter wave submillimeter wave frequency range.This power divider can be realized compact multipath power distributor structure, realizes the multichannel power division of low-loss and high reliability.
The technical scheme that realizes the object of the invention is:
Waveguide type integrated multipath power divider, input signal balancedly is assigned to 2 through the network of N level 2 fork tree topology
NIndividual output port, each binary tree branch node is realized by a 3dB branch mixed electrical bridge; Described multipath power distributor is upper and lower two parts take plane, place, Narrow Wall of Waveguide limit as divisional plane is divided into, and its middle and upper part is divided into the plane without circuit structure, as a narrow limit of waveguide; The bottom is divided and is comprised 2
NIndividual be arranged in parallel in same plane, rectangular waveguide that the cross section is identical, N is the integer greater than 0; The two ends of each rectangular waveguide are set up input waveguide opening and output waveguide opening separately; The input waveguide opening of one of two rectangular waveguides at center is as input waveguide, and the input waveguide opening of other rectangular waveguide accesses matched load; The broadside of each rectangular waveguide is adjacent, and the interval is about the length of 1/4 wavelength at centre frequency place; Comprise one or more 3dB branch mixed electrical bridges between two adjacent waveguides, make any one branch road all obtain 1/2 through the effect of N mixed electrical bridge at the centre frequency place successively
NPower stage.
Because above-mentioned multipath power distributor is an accurate two-dimensional structure, the realization of its mechanical structure can be completed in the following manner: take plane, place, Narrow Wall of Waveguide limit as divisional plane, total is divided into two parts.One of them part is the plane without circuit structure, and its function is only as a narrow limit of waveguide; Another part comprises all waveguides and branch line structure, and this structure can realize by the mode of direct mechanical Milling Process.
As a further improvement on the present invention, described matched load is wedge shape, and matched load bottom is transitioned into the inside dimension of waveguide from big to small gradually, enables to fill fully waveguide, and is aided with epoxy glue, makes it to be fixed in waveguide.
The beneficial effect of this invention is: existing waveguide type multipath power distributor is due to complex structure, processing difficulties, be difficult in higher frequency application, the waveguiding structure that this invention adopts has the characteristic (all waveguides all be arranged in parallel with a plane in) of accurate two dimension, can carry out easily machining.Therefore this structure can scaledly be used, and can realize the multichannel power division of millimeter wave and submillimeter region.
Description of drawings
Fig. 1 is the integrated power divider external structure of the embodiment of the present invention 1;
The integrated power divider cut-away view of Fig. 2;
Fig. 3 is the embodiment of the present invention 1 integrated power divider branch mixed electrical bridge enlarged drawing;
Fig. 4 is the embodiment of the present invention 1 embodiment integrated power divider matched load structure chart.
Embodiment
Be described further below in conjunction with drawings and Examples.
As shown in Figure 1, waveguide type integrated multipath power divider, upper and lower two parts 1,2 take plane, place, Narrow Wall of Waveguide limit as divisional plane is divided into, its middle and upper part divides 1 for the plane without circuit structure, as a narrow limit of waveguide; Lower part 2 is included in 4 rectangular waveguides that are arranged in parallel in same plane, the cross section is identical, is integrated No. 4 power dividers of waveguide type.
As shown in Figure 2, the lower part 2 of waveguide type integrated multipath power divider comprises 4 be arranged in parallel, rectangular waveguides that the cross section is identical in same plane.The other end that one end of first to fourth rectangular waveguide is provided with the first input waveguide opening 4, the second input waveguide opening 3, the 3rd input waveguide opening 5 and the 4th input waveguide opening 6, first to fourth rectangular waveguides is provided with the first output waveguide opening 7, the second output waveguide opening 8, the 3rd output waveguide opening 9 and the 4th output waveguide opening 10.The second input waveguide opening 3 of one of the rectangular waveguide at center is as the input waveguide mouth, and the input waveguide opening of other waveguide accesses matched load 17.The broadside of each rectangular waveguide is adjacent, and the interval is about the length (accurately the interval is decided by the design of 3dB branch mixed electrical bridge) of 1/4 wavelength at centre frequency place.Common wall between two adjacent waveguides is provided with first, second, and third 5 branch mixed electrical bridges 15,14,16, makes any one branch road all obtain 1/2 through the effect of N=2 mixed electrical bridge at the centre frequency place successively
NPower stage.
As shown in Figure 3, second and the 3 two waveguide between common wall be provided with the 25 branch mixed electrical bridge 14, first to fourth on common wall totally 5 flutings 14a, 14b, 14c, 14d and 14e, form 5 branch mixed electrical bridges.
As shown in Figure 4, terminal matched load 17 is wedge shape, the epoxy resin that adopts magnetic-particle to fill, Emerson﹠amp; The ECCOSORB that Cuming company produces
TMMF117.This material has enough hardness to carry out machining.With the materials processing wedgewise, realize the absorption that 20dB is above.Terminal matched load 17 bottoms are transitioned into the inside dimension of waveguide from big to small gradually, enable to fill fully waveguide, and are aided with epoxy glue, make it to be fixed in waveguide.
Claims (2)
1. waveguide type integrated multipath power divider, is characterized in that, the input signal of described multipath power distributor balancedly is assigned to 2 through the network of N level 2 fork tree topology
NIndividual output port, each binary tree branch node is realized by a 3dB branch mixed electrical bridge; Described multipath power distributor is upper and lower two parts take plane, place, Narrow Wall of Waveguide limit as divisional plane is divided into, and its middle and upper part is divided into the plane without circuit structure, as a narrow limit of waveguide; The bottom is divided and is comprised 2
NIndividual be arranged in parallel in same plane, rectangular waveguide that the cross section is identical, N is the integer greater than 0; The two ends of each rectangular waveguide are set up input waveguide opening and output waveguide opening separately; The input waveguide opening of one of two rectangular waveguides at center is as the input waveguide mouth, and the input waveguide opening of other rectangular waveguide accesses matched load; The broadside of each rectangular waveguide is adjacent, and the interval is about the length of 1/4 wavelength at centre frequency place; Comprise one or more branch mixed electrical bridges between two adjacent waveguides, make any one branch road all obtain 1/2 through the effect of N mixed electrical bridge at the centre frequency place successively
NPower stage.
2. waveguide type integrated multipath power divider according to claim 1, is characterized in that, described matched load is wedge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010509692 CN101958451B (en) | 2010-10-15 | 2010-10-15 | Waveguide type integrated multipath power divider |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010509692 CN101958451B (en) | 2010-10-15 | 2010-10-15 | Waveguide type integrated multipath power divider |
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| Publication Number | Publication Date |
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| CN101958451A CN101958451A (en) | 2011-01-26 |
| CN101958451B true CN101958451B (en) | 2013-06-26 |
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| CN 201010509692 Expired - Fee Related CN101958451B (en) | 2010-10-15 | 2010-10-15 | Waveguide type integrated multipath power divider |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682541B (en) * | 2013-11-25 | 2015-08-26 | 中国计量学院 | THz wave one point of four power splitter of unsymmetric structure |
| CN103682542B (en) * | 2013-11-25 | 2015-12-30 | 中国计量学院 | Symmetrical multi-grid THz wave power splitter |
| CN105655678A (en) * | 2014-12-08 | 2016-06-08 | 核工业西南物理研究院 | Transition waveguide and cold test assembly used for lower-hybrid wave antenna of Tokamak device |
| CN104868209A (en) * | 2015-06-10 | 2015-08-26 | 成都赛纳赛德科技有限公司 | Multichannel microwave device |
| CN109119731B (en) * | 2018-08-31 | 2023-09-05 | 成都天箭科技股份有限公司 | Novel light waveguide matching load and installation method thereof |
| CN114243246B (en) * | 2022-02-23 | 2022-07-29 | 电子科技大学 | Application of improved terahertz high-isolation E-plane power divider |
| CN114784476B (en) * | 2022-03-22 | 2024-04-16 | 南京航空航天大学 | Multipath waveguide power synthesizer based on E-plane porous expansion coupling structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4812788A (en) * | 1987-11-02 | 1989-03-14 | Hughes Aircraft Company | Waveguide matrix including in-plane crossover |
| CN1700513A (en) * | 2005-05-30 | 2005-11-23 | 东南大学 | Chip integrated waveguide broad-band multipath power distributor |
| CN101667675A (en) * | 2008-09-03 | 2010-03-10 | 中国科学院微电子研究所 | Waveguide structure suitable for millimeter wave power synthesis and distribution |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2699880B2 (en) * | 1994-07-29 | 1998-01-19 | 日本電気株式会社 | High power terminator |
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2010
- 2010-10-15 CN CN 201010509692 patent/CN101958451B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4812788A (en) * | 1987-11-02 | 1989-03-14 | Hughes Aircraft Company | Waveguide matrix including in-plane crossover |
| CN1700513A (en) * | 2005-05-30 | 2005-11-23 | 东南大学 | Chip integrated waveguide broad-band multipath power distributor |
| CN101667675A (en) * | 2008-09-03 | 2010-03-10 | 中国科学院微电子研究所 | Waveguide structure suitable for millimeter wave power synthesis and distribution |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-46408A 1996.02.16 |
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