CN103633398B - A kind of orthomode transducer - Google Patents
A kind of orthomode transducer Download PDFInfo
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- CN103633398B CN103633398B CN201210306059.4A CN201210306059A CN103633398B CN 103633398 B CN103633398 B CN 103633398B CN 201210306059 A CN201210306059 A CN 201210306059A CN 103633398 B CN103633398 B CN 103633398B
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- groove
- waveguide group
- orthomode transducer
- coupling window
- power feed
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Abstract
The present invention relates to a kind of orthomode transducer, comprise body and the lid of mutual fastening. On this body, be provided with groove, step waveguide group and coupling window. The front end of this groove is positioned at this body edges and forms a public port, and this step waveguide group is connected with the end of this groove. This step waveguide group is from sequentially comprising first step, second step to the n step with this notch end junction. This coupling window is across the end of this groove and at least first step of step waveguide group, and runs through the bottom of this body downwards. This lid comprises power feed hole, and at least the n step of this power feed hole and step waveguide group is just right. Orthomode transducer of the present invention is simple and compact for structure, be beneficial to batch production.
Description
Technical field
The present invention relates to a kind of microwave passive component, relate in particular to a kind of microwave frequency band orthogonal mode transducer.
Background technology
Microwave communication is current one of conventional wireless communication means in the world, be widely used in transfer of data, radio and television transmission,The field such as satellite communication, mobile communication. Orthomode transducer is the outdoor three-port network device of wireless transmission product, is in feedbackIn electric system, realize the device of orthogonally polarized signal duplex transmission (separating with synthetic). Orthomode transducer junction chamber is outer bipolarChange antenna and two outdoor units (ODU), two transceiver channels share an antenna, tool by orthomode transducerThere is the function of polarization separation. The main task of orthomode transducer is to differentiate that on public port, two orthogonal main mould independent signals also willThe basic mode of their supply single signal ports, requires to reach public port coupling and between two independent signals, has higher intersectionPolarization taste.
Although common orthomode transducer generally only shows as three physical ports, in electrical equipment principle, be four port devices.Refer to Fig. 1, it is the equivalent circuit diagram of orthomode transducer. Public port (or claiming main mould port) is positioned at electric port 3,4Place, and electric port one and respectively corresponding two basic modes (TE10 mould and the TE01 mould) port of electric port 2. Public port and feedLoudspeaker join, and are generally square wave guide or circular waveguide, and it provides two electrical equipment ports, distribute to respectively two independently orthogonal modes,All the other two ports are made up of waveguide port or the coaxial port of standard, only transmission basic mode separately.
Orthomode transducer connects antenna and ODU unit, and its existence will inevitably bring loss to increase, and standing-wave ratio is raised, fromAnd the performance of deterioration machine system, so the design of orthomode transducer will make orthomode transducer exactly under assigned work conditionMeet system requirements. Orthomode transducer has the function of polarization separation, in theory, when design, need to ensure orthomode transducerStructurally full symmetric. As shown in Figure 2, two mutually orthogonal polarized signal V, H transmit from top to bottom from circular waveguide,In the bottom of circular waveguide, one adaptation is set, V polarization is divided into two-way V1, V2 respectively to port one and 3 transmission, in like manner HPolarization is also divided into two-way H1, H2 respectively to port 2 and 4 transmission. Obviously, the orthogonal mode of full symmetric conversion in this structureDevice, complex structure, takes up space large, particularly two paths of signals V1, V2(or H1, H2) when synthetic again, need larger skyBetween. As shown in Figure 3, this is also a kind of orthomode transducer that current purposes is comparatively many, and the Fig. 2 that compares has several advantages, knotStructure compactness, take up space little, can entirety process, polarization V and H need not separate and synthesize, but intrinsic shortcoming still exists, thatBe exactly that the axle center of port 2 and the axle center of port 3 must intersect vertically, port 2 about common circle waveguide and axle center (orThe axle center of port 3) full symmetric. For such orthomode transducer symmetrical configuration certainly will will cause when the Project Realization structureSplit complicatedly, or requirement on machining accuracy height can bring cost to increase, thereby is unfavorable for batch production.
Summary of the invention
The object of the present invention is to provide a kind of simple and compact for structure, orthomode transducer of being beneficial to batch production. The present invention is logicalCross that following technical scheme realizes: a kind of orthomode transducer, comprises body and the lid of mutual fastening. On this body, be provided withGroove, step waveguide group and coupling window. The front end of this groove is positioned at this body edges and forms a public port, this step waveguideGroup is connected with the end of this groove. This step waveguide group is from sequentially comprising first step, second step with this notch end junctionTo n step. This coupling window is across the end of this groove and at least first step of step waveguide group, and runs through this downwardsThe bottom of body. This lid comprises power feed hole, and at least the n step of this power feed hole and step waveguide group is just right.
Further, this groove and this coupling window are regular cylinder, the axis of this groove phase vertical with the axis of this coupling windowHand over, the plane that defines the axis of this groove and the axis place of this coupling window is symmetrical plane, and this step waveguide group is right about thisClaim plane symmetry.
Further, this power feed hole is about this symmetrical plane symmetry.
With respect to prior art, orthomode transducer provided by the invention is simple and compact for structure. Wherein, groove and this step waveguideGroup forms the symmetrical plane symmetry of wave-guide cavity wave about the axis of this groove and the formation of the axis of coupling window, can realize and add man-hourOnly need one-time positioning can be disposable process simultaneously body and on the entirety processing of groove, step waveguide group and coupling windowTechnique. In the time that body is closely connected with cover plate, the wave-guide cavity wave that groove and step waveguide group form is non co axial setting, large like thisReduce greatly the physics tolerance of bringing when orthomode transducer adds man-hour and artificial assembling, improved the isolation between two branched bottoms,Thereby ensure its overall performance, and save manual debugging, improved again product percent of pass and production efficiency, be beneficial to batch production.
Brief description of the drawings
Fig. 1 is the equivalent circuit diagram of orthomode transducer;
Fig. 2 is the transmission principle figure of prior art orthomode transducer;
Fig. 3 is the structural representation of an orthomode transducer of prior art;
Fig. 4 is the perspective exploded view of orthomode transducer of the present invention;
Fig. 5 is the perspective exploded view of another angle of the orthomode transducer shown in Fig. 4;
Fig. 6 is the enlarged diagram of the step waveguide group shown in Fig. 4;
Fig. 7 is the schematic perspective view after the assembling of the orthomode transducer shown in Fig. 4.
Detailed description of the invention
Please refer to Fig. 4 ~ Fig. 7, its structural representation that is orthomode transducer of the present invention. This orthomode transducer comprises thisBody 1 and cover plate 2.
On this body 1, be provided with groove 3 and step waveguide group 4, the front end of this groove 3 is positioned at this body 1 edge and forms public affairsPort 31 altogether, this step waveguide group 4 is connected with the end of this groove 3. This groove 3 is in order to the public passage as signal transmission.The section of this groove 3 is square or circular, is square in the present embodiment. This step waveguide group 4 comprises the platform of multiple notch cuttypesRank, the quantity of its step optionally transmitting signal wave band and determine. In the present embodiment, this step waveguide group 4 oneself and this groove3 end junctions sequentially comprise first step, second step, the 3rd step and the 4th step, wherein, and in the present embodiment,This first step and second step are defined as these step waveguide group front end 41, the three steps and the 4th step and are defined as this step and leadRipple group rear end 42. One coupling window 6 is also set on this body 1, and this coupling window 6 is across end and the step ripple of this groove 3Lead the front end 41 of group 4, and run through the bottom of this body 1 downwards.
One power feed hole 5 that runs through this cover plate 2 is set on this cover plate 2. In the time that this cover plate 2 is closely fastened with this body 1, shouldGroove 3 and this step waveguide group 4 form wave-guide cavity wave, and this power feed hole 5 is just right with the end 42 of step waveguide group 4. This groove3 are regular cylinder with this coupling window 6. The intersect vertical axis of the axis of this groove 3 and this coupling window 6. Definition shouldThe plane at the axes intersect place of the axis of groove 3 and this coupling window 6 is symmetrical plane, this groove 3 and this step waveguideGroup 4 forms wave-guide cavity wave about this symmetrical plane symmetry, and this step waveguide group 4 is about this symmetrical plane symmetry; And this feedbackElectricity hole 5 is also about this symmetrical plane symmetry.
Below describe the mode of operation of this orthomode transducer in detail.
First be the separation of polarized signal. The first polarized signal enters this wave-guide cavity wave by public port 31, along groove 3 to platformThe rear end 42 of rank waveguide group 4, and match this power feed hole 5, thus form the first branched bottom; Wherein, this first polarization letterNumber be cut off at these coupling window 6 places, this step waveguide group 4 is for completing the signal between public passage and the first branched bottomCoupling. The second polarized signal enters this wave-guide cavity wave by public port 31, the front end 41 along groove 3 to step waveguide group 4,And match this coupling window 6, thereby form the second branched bottom; Wherein, this second polarized signal is in this step guided wave group 4Rear end 42 be cut off, the signal between public passage and the second branched bottom is by before coupling window 6 and this step waveguide group 4Hold 41 partial couplings and obtain. Above, realized the height isolation transmission of the two-way polarized signal in this wave-guide cavity wave.
Then be polarized signal He road along separate routes, it is by the first branched bottom in orthomode transducer and the second branched bottomGe Yi road polarized signal closes road in public passage. Wherein, the matching effect by this step waveguide group 4 is by the first branched bottomIn the first polarized signal match in public passage and transmit, and the second polarized signal is at the rear end of step waveguide group 4 42 quiltsCut-off. In addition, the matching effect of the front end 41 by this coupling window 6 and step waveguide group 4 is by the second branched bottomTwo polarized signals match in public passage and transmit, and the first polarized signal is in this coupling window 6 places cut-off. It is step rippleLead group 4 for completing the Signal Matching between public passage and the first branched bottom, and between public passage and the second branched bottomSignal be coupled and obtain from the front end 41 of this step waveguide group 4 by coupling window 6.
With respect to prior art, orthomode transducer tool provided by the invention has the following advantages:
First, orthomode transducer of the present invention is simple and compact for structure, and groove and this step waveguide group form wave-guide cavity wave about thisThe symmetrical plane symmetry that the axis of groove and the axis of coupling window form, can realize and only need man-hour one-time positioning to get final product one addingInferior property process simultaneously body and on the integral processing of groove, step waveguide group and coupling window. When body and cover plate tightWhen close connection, the wave-guide cavity wave that groove and step waveguide group form is non co axial setting, greatly reduces like this orthomode transducerThe physics tolerance of bringing while adding man-hour and artificial assembling, improves the isolation between two branched bottoms, thereby ensures its overall performance,And save manual debugging, improved again product percent of pass and production efficiency, be beneficial to batch production.
Secondly, orthomode transducer of the present invention, owing to having adopted the design of step waveguide group, makes between wave-guide cavity wave and power feed holeA polarized signal well mated; Coupling window has been crossed over the end of groove and front end two parts region of step waveguide groupScope is mated another polarized signal in broad frequency band, thereby ensures that two kinds of polarized signals of orthomode transducer existIn wider frequency range, all possesses good electrical property;
Moreover the power feed hole that step waveguide group, coupling window and the cover plate in orthomode transducer structure of the present invention is provided with allAdopt Rouno Cormer Pregrinding Wheel or arc processing, can process with the comparatively large milling cutter of diameter, so not only saved process time but also ensured and producedThereby product machining accuracy improves product percent of pass, is beneficial to batch production.
Orthomode transducer of the present invention has been produced undocumented formal product in millimere-wave band, and performance test is good, meetsMarket demands.
The present invention is not limited to above-mentioned embodiment, if various changes of the present invention or distortion are not departed to spirit of the present inventionAnd scope, if within these changes and distortion belong to claim of the present invention and equivalent technologies scope, the present invention is also intended toComprise these changes and distortion.
Claims (5)
1. an orthomode transducer, is characterized in that: comprise body and the lid of mutual fastening, be provided with groove, platform on this bodyRank waveguide group and coupling window, the front end of this groove is positioned at this body edges and forms a public port, this step waveguide group and thisThe end of groove connects, and this step waveguide group is from sequentially comprising first step, second step to the with this notch end junctionN step, this coupling window is across the end of this groove and at least first step of step waveguide group, and runs through this body downwardsBottom, this lid comprises power feed hole, it is lid that this power feed hole is positioned at the face that face on lid and coupling window be positioned on bodyTwo relative faces of position while mutually fastening with body, and at least the n step of this power feed hole and step waveguide group is just right.
2. orthomode transducer according to claim 1, is characterized in that: this groove and this coupling window are regular cylinder,The axis of this groove and the intersect vertical axis of this coupling window, define the axis place of axis and this coupling window of this groovePlane be symmetrical plane, this step waveguide group is about this symmetrical plane symmetry.
3. orthomode transducer according to claim 2, is characterized in that: this power feed hole is about this symmetrical plane symmetry.
4. orthomode transducer according to claim 2, is characterized in that: this groove is square cylinder or circular cylinder.
5. orthomode transducer according to claim 2, is characterized in that: step waveguide group is from complying with this notch end junctionOrder comprises first step, second step, the 3rd step and the 4th step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306059.4A CN103633398B (en) | 2012-08-24 | 2012-08-24 | A kind of orthomode transducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306059.4A CN103633398B (en) | 2012-08-24 | 2012-08-24 | A kind of orthomode transducer |
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| CN103633398A CN103633398A (en) | 2014-03-12 |
| CN103633398B true CN103633398B (en) | 2016-05-04 |
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| CN201210306059.4A Expired - Fee Related CN103633398B (en) | 2012-08-24 | 2012-08-24 | A kind of orthomode transducer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910966A (en) * | 2017-04-01 | 2017-06-30 | 成都赛纳为特科技有限公司 | Orthogonal mode waveguide adaptor |
| CN106953143A (en) * | 2017-04-01 | 2017-07-14 | 成都赛纳为特科技有限公司 | Suppress the orthogonal mode adapter that higher mode is coupled with port |
| CN106953144A (en) * | 2017-04-01 | 2017-07-14 | 成都赛纳为特科技有限公司 | A kind of orthogonal mode adapter of cramped construction |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505564A (en) * | 2014-12-17 | 2015-04-08 | 科大智能（合肥）科技有限公司 | Dual polarization filter for microwave communication system ODU (Outdoor Unit) |
| CN106992336A (en) * | 2017-04-01 | 2017-07-28 | 成都赛纳为特科技有限公司 | A kind of orthogonal mode adapter of symmetrical structure |
| CN107240739B (en) * | 2017-05-15 | 2019-10-01 | 电子科技大学 | The confocal waveguide excitation device in broadband |
| CN111430858B (en) * | 2019-12-08 | 2021-08-27 | 南京航空航天大学 | Duplex filter based on TE103 waveguide mode |
| CN112310587B (en) * | 2020-10-27 | 2022-02-01 | 华东光电集成器件研究所 | Waveguide output bearing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202121033U (en) * | 2011-06-15 | 2012-01-18 | 京信通信系统（中国）有限公司 | Microwave frequency band orthogonal mode transducer |
| CN102324597A (en) * | 2011-06-15 | 2012-01-18 | 京信通信系统（中国）有限公司 | Microwave frequency band orthogonal analog converter and signal separating/combining method thereof |
-
2012
- 2012-08-24 CN CN201210306059.4A patent/CN103633398B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202121033U (en) * | 2011-06-15 | 2012-01-18 | 京信通信系统（中国）有限公司 | Microwave frequency band orthogonal mode transducer |
| CN102324597A (en) * | 2011-06-15 | 2012-01-18 | 京信通信系统（中国）有限公司 | Microwave frequency band orthogonal analog converter and signal separating/combining method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910966A (en) * | 2017-04-01 | 2017-06-30 | 成都赛纳为特科技有限公司 | Orthogonal mode waveguide adaptor |
| CN106953143A (en) * | 2017-04-01 | 2017-07-14 | 成都赛纳为特科技有限公司 | Suppress the orthogonal mode adapter that higher mode is coupled with port |
| CN106953144A (en) * | 2017-04-01 | 2017-07-14 | 成都赛纳为特科技有限公司 | A kind of orthogonal mode adapter of cramped construction |
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| CN103633398A (en) | 2014-03-12 |
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Effective date of registration: 20181227 Address after: 210000 Room 201, 2nd Floor, Building B, Building 3, Baixia High-tech Industrial Park, No. 8 Yongfeng Avenue, Qinhuai District, Nanjing, Jiangsu Province Patentee after: Nanjing Jingdi Communication Equipment Co., Ltd. Address before: 510663 No. 10 Shenzhou Road, Guangzhou Science City, Guangdong Province Patentee before: Comba Telecom System (China) Co., Ltd. |
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Granted publication date: 20160504 Termination date: 20190824 |