CN103066361A - Rectangular waveguide ladder - Google Patents
Rectangular waveguide ladder Download PDFInfo
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- CN103066361A CN103066361A CN2011103186013A CN201110318601A CN103066361A CN 103066361 A CN103066361 A CN 103066361A CN 2011103186013 A CN2011103186013 A CN 2011103186013A CN 201110318601 A CN201110318601 A CN 201110318601A CN 103066361 A CN103066361 A CN 103066361A
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- rectangular waveguide
- changeover portion
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Abstract
The invention discloses a rectangular waveguide ladder which comprises a base, an upper cover plate, an input rectangular waveguide, an output rectangular waveguide and at least one medium transition section arranged between the input rectangular waveguide and the output rectangular waveguide, wherein the input rectangular waveguide and the output rectangular waveguide are both arranged between the base and the upper cover plate, each medium transition section is of a cylinder shape, and the upper end face of each medium changeover portion is connected with the upper cover plate and the lower end face of each medium changeover portion is connected with the base. The rectangular waveguide ladder has the advantages that problems of processing difficulty in high-frequency sections and high processing cost in the prior art are solved, and processing cost of components is reduced.
Description
Technical field
The present invention relates to a kind of rectangular waveguide ladder of microwave and millimeter wave circuit, specifically, relate to a kind of rectangular waveguide ladder that the rectangular waveguide of differing heights and width can be communicated with.
Background technology
Waveguide in the advantage aspect power capacity and loss, obtains important application in low-loss or High-Power Microwave millimeter wave transmission field due to it.In radar system, power synthetic system and other occasion, usually need to form various complicated circuits by the microwave and millimeter wave waveguide.Existing waveguide device is generally to be assembled by many parts.Because the size of various piece is different, in assembling process, will use the waveguide transition structure.See at present modal waveguide transition structure and be three kinds of rectigradation, curve gradual change and hierarchic structures, wherein rectigradation is simple in structure, handling ease, but to expect lower reflection, and length is relatively long, and loss is larger.And the curve gradual change is continuous variation due to waveguide, there is not sudden change in impedance, therefore band internal reflection fluctuation is little.But the curvilinear structures complexity, difficulty of processing is large.The ladder waveguide is to adopt impedance transformation, can on the shortest length, realize lower reflection.But the ladder waveguide adopts the milling technology to be processed, so just in step edges, fallen a fillet.When frequency, to millimeter wave submillimeter wave frequency range, or even during the THz frequency range, because waveguide dimensions is smaller, and adjacent two waveguide ladder widths are more or less the same, and will just can process with very little milling cutter like this, and the cost of processing is very expensive.
Summary of the invention
The object of the present invention is to provide a kind of rectangular waveguide ladder, solve the problem of prior art in high band processing difficulties, processing cost costliness, reduce the processing cost of device.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of rectangular waveguide ladder, comprise base, upper cover plate, the input rectangular waveguide, the output rectangular waveguide, and at least 1 at input rectangular waveguide and output the medium changeover portion between rectangular waveguide, described input rectangular waveguide and output rectangular waveguide all are arranged between base and upper cover plate, the upper surface that is shaped as of All Media changeover portion connects the cylinder that cover plate, lower surface connect base.
End face, output rectangular waveguide that the input rectangular waveguide connects cover plate connect the upper end surface of the end face of cover plate and All Media changeover portion in same plane.
The cross section vertical with axis of medium changeover portion surrounded by the closed curve that comprises at least one section circular arc
.
The radius of the circular arc of described arbitrary medium changeover portion is greater than 1/3 of this medium changeover portion Breadth Maximum
.
The radius of the circular arc of described arbitrary medium changeover portion equals 1/2 of this medium changeover portion Breadth Maximum
.
The height of All Media changeover portion is identical with input rectangular waveguide and output rectangular waveguide; Or direction monotone increasing or the dullness of height along the input rectangular waveguide to the output rectangular waveguide of input rectangular waveguide, All Media changeover portion and output rectangular waveguide reduces
.
Wherein, direction monotone increasing or the dullness of height along the input rectangular waveguide to the output rectangular waveguide of input rectangular waveguide, All Media changeover portion and output rectangular waveguide reduces
implication be:the height of the height of input rectangular waveguide, the height of all matter changeover portions, the output rectangular waveguide direction along the input rectangular waveguide to the output rectangular waveguide successively increases step by step or reduces step by step.
The width of All Media changeover portion is identical with input rectangular waveguide and output rectangular waveguide; Or direction monotone increasing or the dullness of width along the input rectangular waveguide to the output rectangular waveguide of input rectangular waveguide, All Media changeover portion and output rectangular waveguide reduces
.
Wherein, direction monotone increasing or the dull implication that reduce of the width of described input rectangular waveguide, All Media changeover portion and output rectangular waveguide along the input rectangular waveguide to the output rectangular waveguide is: the width of the width of input rectangular waveguide, the width of all matter changeover portions, the output rectangular waveguide direction along the input rectangular waveguide to the output rectangular waveguide successively increases step by step or reduces step by step.
The cross section vertical from axis of medium changeover portion surrounded by two sections different circular arc sealings of radius
.
The medium changeover portion is air layer.
For the ease of adopting larger-diameter milling cutter milling processing, the radius of the circular arc of described medium changeover portion is greater than 1/3 of this medium changeover portion Breadth Maximum.Preferred plan be the radius of the circular arc of described medium changeover portion equal this medium changeover portion Breadth Maximum 1/2
.
Generally, for input rectangular waveguide and the identical situation of output rectangular waveguide height, the height of all medium changeover portions is identical.For input rectangular waveguide and the not identical situation of output rectangular waveguide height, the height of described medium changeover portion is along inputting rectangular waveguide to the direction monotone increasing of output rectangular waveguide or reducing
.for input rectangular waveguide and the identical situation of output rectangular waveguide width, the width of all medium changeover portions is identical.For input rectangular waveguide and the not identical situation of output rectangular waveguide width, the width of described medium changeover portion is along inputting rectangular waveguide to the direction monotone increasing of output rectangular waveguide or reducing.Do not limit for above-mentioned situation in the present invention, can carry out independent assortment.Carrying out according to the actual needs best field adjustable combined treatment gets final product.
In order to increase to greatest extent the radius of medium changeover portion chamfering, be beneficial to adopt the milling cutter milling processing try one's best large, the cross section of described medium changeover portion can be only by two sections radiuses, the sealing of different circular arcs surrounds
.
Under normal conditions, described medium changeover portion is air layer.
Principle of the present invention is: utilize the quarter-wave guide wavelength to realize impedance matching.Show according to the principle that on transmission line, repeatedly the part reflection superposes, choose impedance and the length of suitable ladder waveguide, can obtain required reflection coefficient response.
The invention has the advantages that: a kind of rectangular waveguide ladder can be provided, can solve the problem of prior art in high band processing difficulties, processing cost costliness, reduce the processing cost of device.
The accompanying drawing explanation
Fig. 1 is longitudinal sectional drawing of the present invention.
The A-A that Fig. 2 is Fig. 1 is to schematic diagram.
The A-A that Fig. 3 is embodiment 2 is to schematic diagram.
The A-A that Fig. 4 is embodiment 3 is to schematic diagram.
The A-A that Fig. 5 is embodiment 4 is to schematic diagram.
The longitudinal sectional drawing that Fig. 6 is embodiment 5.
The A-A that Fig. 7 is embodiment 6 is to schematic diagram.
Label in figure is expressed as respectively: 1, base; 2, upper cover plate; 3, input rectangular waveguide; 4, output rectangular waveguide; 5, medium changeover portion.
Described direction is defined as follows herein:
Width, refer to the broadside place direction of rectangular waveguide cross section, in Fig. 1 corresponding to point to reader's direction from paper.Short transverse, refer to place, the narrow limit direction of rectangular waveguide cross section, in Fig. 1 corresponding to vertical direction.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but the utility model execution mode is not limited to this.
As shown in Figure 1 and Figure 2, a kind of rectangular waveguide ladder, comprise base 1, upper cover plate 2, input rectangular waveguide 3, output rectangular waveguide 4, and at least 1 medium changeover portion 5 between input rectangular waveguide 3 and output rectangular waveguide 4, described input rectangular waveguide 3 and output rectangular waveguide 4 all are arranged between base 1 and upper cover plate 2, and the upper surface that is shaped as of All Media changeover portion 5 connects the cylinder that cover plate 2, lower surface connect base 1.
End face, output rectangular waveguide 4 that input rectangular waveguide 3 connects cover plate 2 connect the upper end surface of the end face of cover plate 2 and All Media changeover portion 5 in same plane.
The cross section vertical with axis of medium changeover portion 5 surrounded by two sections circular arc sealings
.and the radius of the circular arc of medium changeover portion 5 is greater than 1/3 of these medium changeover portion 5 Breadth Maximums
.the height of input rectangular waveguide 3, medium changeover portion 5 and output rectangular waveguide 4 and width are along inputting rectangular waveguide 3 to the direction monotone increasing of output rectangular waveguide 4 or reducing
.
As shown in Figure 1,3, different from embodiment 1 is that the cross section vertical with axis of medium changeover portion 5 surrounded by four arcs and two line segments sealings
.and the radius of the circular arc of medium changeover portion 5 is greater than 1/3 of these medium changeover portion 5 Breadth Maximums
.
As shown in Fig. 1,4, different from embodiment 1 is medium changeover portion 5 vertical with axis cross section by two sections circular arcs and two line segments sealings, surrounded
.and the radius of the circular arc of medium changeover portion 5 is greater than 1/3 of these medium changeover portion 5 Breadth Maximums
.
As shown in Figure 1,5, different from embodiment 1 is that the cross section vertical with axis of medium changeover portion 5 surrounded by four arcs and four line segments sealings.And the radius of medium changeover portion 5 circular arcs is greater than 1/3 of these medium changeover portion 5 Breadth Maximums
.
As shown in Figure 2,6, the height of different from embodiment 1 is All Media changeover portion 5 is identical, and the cross section vertical with axis of medium changeover portion 5 surrounded by the closed curve sealing that has one section circular arc at least
.and the radius of the circular arc of medium changeover portion 5 is greater than 1/3 of these medium changeover portion 5 Breadth Maximums
.
Embodiment 6
As shown in Fig. 1,7, the width of different from embodiment 1 is All Media changeover portion 5 is identical, and the cross section vertical with axis of medium changeover portion 5 surrounded by the closed curve sealing that has one section circular arc at least
.and the radius of the circular arc of medium changeover portion 5 equals 1/2 of these medium changeover portion 5 Breadth Maximums
.
Claims (9)
1. a rectangular waveguide ladder, comprise base (1), upper cover plate (2), input rectangular waveguide (3), output rectangular waveguide (4), and at least 1 medium changeover portion (5) be positioned between input rectangular waveguide (3) and output rectangular waveguide (4), it is characterized in that, described input rectangular waveguide (3) and output rectangular waveguide (4) all are arranged between base (1) and upper cover plate (2), and the upper surface that is shaped as of All Media changeover portion (5) connects the cylinder that cover plate (2), lower surface connect base (1).
2. a kind of rectangular waveguide ladder according to claim 1, it is characterized in that, end face, output rectangular waveguide (4) that input rectangular waveguide (3) connects cover plate (2) connect the upper end surface of the end face of cover plate (2) and All Media changeover portion (5) in same plane.
3. according to the described a kind of rectangular waveguide ladder of claims 1, it is characterized in that, the cross section vertical with axis of medium changeover portion (5) surrounded by the closed curve that comprises at least one section circular arc
.
4. a kind of rectangular waveguide ladder according to claim 3, is characterized in that, the radius of the circular arc of described arbitrary medium changeover portion (5) is greater than 1/3 of this medium changeover portion (5) Breadth Maximum
.
5. a kind of rectangular waveguide ladder according to claim 3, is characterized in that, the radius of the circular arc of described arbitrary medium changeover portion (5) equals 1/2 of this medium changeover portion (5) Breadth Maximum
.
6. a kind of rectangular waveguide ladder according to claim 4, is characterized in that, the height of All Media changeover portion (5) is identical with input rectangular waveguide (3) and output rectangular waveguide (4); Or direction monotone increasing or the dullness of height along input rectangular waveguide (3) to output rectangular waveguide (4) of input rectangular waveguide (3), All Media changeover portion (5) and output rectangular waveguide (4) reduces
.
7. rectangular waveguide ladder according to claim 4, is characterized in that, the width of All Media changeover portion (5) is identical with input rectangular waveguide (3) and output rectangular waveguide (4); Or direction monotone increasing or the dullness of width along input rectangular waveguide (3) to output rectangular waveguide (4) of input rectangular waveguide (3), All Media changeover portion (5) and output rectangular waveguide (4) reduces
.
8. rectangular waveguide ladder according to claim 1, is characterized in that, the cross section vertical from axis of medium changeover portion (5) surrounded by two sections different circular arc sealings of radius
.
9. according to the rectangular waveguide ladder of claim 1-8 any one, it is characterized in that, medium changeover portion (5) is air layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110318601.3A CN103066361B (en) | 2011-10-19 | 2011-10-19 | Rectangular waveguide ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110318601.3A CN103066361B (en) | 2011-10-19 | 2011-10-19 | Rectangular waveguide ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103066361A true CN103066361A (en) | 2013-04-24 |
| CN103066361B CN103066361B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110318601.3A Expired - Fee Related CN103066361B (en) | 2011-10-19 | 2011-10-19 | Rectangular waveguide ladder |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006005846A (en) * | 2004-06-21 | 2006-01-05 | Mitsubishi Electric Corp | Waveguide microstrip line transformer |
| CN2836255Y (en) * | 2005-11-03 | 2006-11-08 | 中国电子科技集团公司第三十八研究所 | Wideband small standing wave end fired coaxial waveguide converter |
| CN200965910Y (en) * | 2006-10-13 | 2007-10-24 | 南京理工大学 | Transient connector from substrate integral waveguide to metallic waveguide |
| JP2008064653A (en) * | 2006-09-08 | 2008-03-21 | Institute Of Physical & Chemical Research | Spectrometer |
| CN101414700A (en) * | 2008-08-12 | 2009-04-22 | 北京航空航天大学 | Novel short millimeter waveband step moment round transition |
| CN101593872A (en) * | 2009-07-01 | 2009-12-02 | 电子科技大学 | A kind of back-fed millimeter wave broadband double ridged horn antenna |
| CN101604778A (en) * | 2009-05-12 | 2009-12-16 | 成都赛纳赛德科技有限公司 | Waveguide polarization adaptor |
| CN202308252U (en) * | 2011-10-19 | 2012-07-04 | 成都赛纳赛德科技有限公司 | Rectangular waveguide ladder |
-
2011
- 2011-10-19 CN CN201110318601.3A patent/CN103066361B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006005846A (en) * | 2004-06-21 | 2006-01-05 | Mitsubishi Electric Corp | Waveguide microstrip line transformer |
| CN2836255Y (en) * | 2005-11-03 | 2006-11-08 | 中国电子科技集团公司第三十八研究所 | Wideband small standing wave end fired coaxial waveguide converter |
| JP2008064653A (en) * | 2006-09-08 | 2008-03-21 | Institute Of Physical & Chemical Research | Spectrometer |
| CN200965910Y (en) * | 2006-10-13 | 2007-10-24 | 南京理工大学 | Transient connector from substrate integral waveguide to metallic waveguide |
| CN101414700A (en) * | 2008-08-12 | 2009-04-22 | 北京航空航天大学 | Novel short millimeter waveband step moment round transition |
| CN101604778A (en) * | 2009-05-12 | 2009-12-16 | 成都赛纳赛德科技有限公司 | Waveguide polarization adaptor |
| CN101593872A (en) * | 2009-07-01 | 2009-12-02 | 电子科技大学 | A kind of back-fed millimeter wave broadband double ridged horn antenna |
| CN202308252U (en) * | 2011-10-19 | 2012-07-04 | 成都赛纳赛德科技有限公司 | Rectangular waveguide ladder |
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| CN103066361B (en) | 2015-04-22 |
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