CN202474146U - Rectangular waveguide connecting end tolerance structure - Google Patents
Rectangular waveguide connecting end tolerance structure Download PDFInfo
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- CN202474146U CN202474146U CN2011205749545U CN201120574954U CN202474146U CN 202474146 U CN202474146 U CN 202474146U CN 2011205749545 U CN2011205749545 U CN 2011205749545U CN 201120574954 U CN201120574954 U CN 201120574954U CN 202474146 U CN202474146 U CN 202474146U
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Abstract
The utility model belongs to the microwave antenna technology, and relates to the improvement of a rectangular waveguide connecting end structure between a passive phased array radar microwave feed structure and a microwave power distribution structure. The rectangular waveguide connecting end tolerance structure is characterized in that a connecting end face of a choke flange (2) is provided with a circular boss (2c) which surrounds a choke groove (2b); the connecting end face of the choke flange (2) is provided with a rubber pad installation face which is in a rectangular frame shape; a conductive rubber pad (4) is arranged on the rubber pad installation face. The rectangular waveguide connecting end tolerance structure can guarantee the excellent and reliable electrical performance of the connection between a first waveguide and a second waveguide when a butt joint end face between a connecting end of the first waveguide and a connecting end of a second waveguide has a big gap.
Description
Technical field
The utility model belongs to the microwave antenna technology, relates to the improvement to the rectangular waveguide link structure between passive phased array radar microwave feed structure and the microwave power distribution structure.
Background technology
Waveguide is connected in the microwave antenna and is widely used, and 20～50 pairs of rectangular waveguide links are arranged between passive phased array radar microwave feed structure and microwave power distribution structure.The waveguide of welding with the microwave feed structure is first waveguide, and the waveguide of welding with the microwave power distribution structure is second waveguide, and the link of the link of first waveguide and second waveguide is connected to integral body.The structure of present rectangular waveguide link is referring to Fig. 1 and Fig. 2.Fig. 2 is a figure K-K cutaway view.Waveguide link structure comprises that the other end and microwave feed structure that one first waveguide, 1, the first waveguide 1 need have choke flange 2, the first waveguides 1 of rectangle with the end that second waveguide 5 is connected are welded as integral body.A choke chamber 2a is arranged on the connection end face of choke flange 2, and the cavity profile of choke chamber 2a is a cuboid.Annular choke groove 2b around choke chamber 2a is arranged in the outside of choke chamber 2a.On the connection end face of choke flange 2, respectively there is a tapped blind hole 3 at place, 4 right angles.Also comprise one second waveguide 5, near the position of link the plane face flange 6 of a rectangle is arranged in second waveguide 5, the rectangular profile size of plane face flange 6 equates with the rectangular profile size of choke flange 2.In plane face flange 6 and being connected of second waveguide 5 linkage section 5a is arranged between the end face.On the connection end face of plane face flange 6, respectively there is a screw via hole at place, 4 right angles, the position of these 4 screw via holes is corresponding one by one with 4 tapped blind holes 3 on the choke flange 2, through 4 screws 7 choke flange 2 and plane face flange 6 is connected as one.The other end of second waveguide 5 and microwave power distribution structure are welded as integral body.When the link of first waveguide 1 with after the link of second waveguide 5 is connected, the linkage section 5a of second waveguide 5 is positioned at the choke chamber 2a of the first waveguide choke flange 2, second waveguide 5 keeps coaxial with first waveguide 1.The shortcoming of this structure is: the gap between the first waveguide link and the second waveguide link is gap at random, is difficult to eliminate, and influence the electrical property after the waveguide connection.Dozens of first waveguide needs while on the microwave feed structure is connected with second waveguide on the microwave power distribution structure; Because all there are tolerance in the manufacturing of waveguide and welding; Must cause the gap of dozens of butt joint end face to have random error; Make after connecting and to eliminate, thereby influence the electrical property after waveguide connects in the gaps of a lot of butt joint end faces.
Summary of the invention
The purpose of the utility model is: propose a kind ofly when the first waveguide link docks end face and has big gap with the second waveguide link, can also guarantee the tolerance structure that the good reliable electric of two waveguides connects.
The technical scheme of the utility model is: a kind of rectangular waveguide link tolerance structure; Comprise one first waveguide 1; First waveguide 1 need have the choke flange 2 of rectangle with the end that second waveguide 5 is connected; The other end of first waveguide 1 and microwave feed structure are welded as integral body, and a choke chamber 2a is arranged on the connection end face of choke flange 2, and the cavity profile of choke chamber 2a is a cuboid; In the outside of choke chamber 2a an annular choke groove 2b around choke chamber 2a is arranged, on the connection end face of choke flange 2, respectively there is a tapped blind hole 3 at place, 4 right angles; Also comprise one second waveguide 5; The plane face flange 6 that a rectangle is arranged near the position of link in second waveguide 5; The rectangular profile size of plane face flange 6 equates with the rectangular profile size of choke flange 2; In plane face flange 6 and being connected of second waveguide 5 linkage section 5a is arranged between the end face, on the connection end face of plane face flange 6, respectively there is a screw via hole at place, 4 right angles, the position of these 4 screw via holes is corresponding one by one with 4 tapped blind holes 3 on the choke flange 2; Through 4 screws 7 choke flange 2 and plane face flange 6 are connected as one, the other end of second waveguide 5 and microwave power distribution structure are welded as integral body; When the link of first waveguide 1 with after the link of second waveguide 5 is connected, the linkage section 5a of second waveguide 5 is positioned at the choke chamber 2a of the first waveguide choke flange 2, second waveguide 5 keeps coaxial with first waveguide 1; It is characterized in that: an annular boss 2c around choke groove 2b is arranged on the connection end face of choke flange 2; The contour shape of annular boss 2c is a rectangle; The zone that connect on the end faces at choke flange 2, is positioned at annular boss 2c outside forms the rubber blanket installed surface of a rectangle frame shape, and 4 tapped blind holes 3 are positioned at the place, 4 right angles of above-mentioned rubber blanket installed surface; A rubber blanket 4 of being processed by conductive rubber is arranged; Its shape is identical with the shape of above-mentioned rubber blanket installed surface; Rubber blanket 4 is installed on the above-mentioned rubber blanket installed surface, at the place, 4 right angles of rubber blanket 4 a screw via hole is arranged respectively, and the position of above-mentioned screw via hole is corresponding with tapped blind hole 3; Thickness δ=t+ (0.3～0.6) mm of rubber blanket 4, t is the height of annular boss 2c.
The utility model has the advantages that: can eliminate the first waveguide link and dock of the influence of the gap of end face, guarantee the reliability that the first waveguide link is connected with the second waveguide link electrical property with the second waveguide link.
Description of drawings
Fig. 1 is the structural representation of rectangular waveguide link, this figure be the first waveguide link be connected with the second waveguide link back from the direction of second waveguide see into view.
Fig. 2 is the K-K cutaway view of Fig. 1, and this is the exploded view of present a kind of rectangular waveguide link structure, and the first waveguide link and the second waveguide link are in not-connected status.
Fig. 3 is the K-K cutaway view of Fig. 1, and this is the exploded view of the utility model rectangular waveguide link structure, and the first waveguide link and the second waveguide link are in not-connected status.
Embodiment
Explain further details in the face of the utility model down.Referring to Fig. 3; A kind of rectangular waveguide link tolerance structure; Comprise that the other end and microwave feed structure that one first waveguide, 1, the first waveguide 1 need have choke flange 2, the first waveguides 1 of rectangle with the end that second waveguide 5 is connected are welded as integral body; A choke chamber 2a is arranged on the connection end face of choke flange 2; The cavity profile of choke chamber 2a is a cuboid, and an annular choke groove 2b around choke chamber 2a is arranged in the outside of choke chamber 2a, on the connection end face of choke flange 2, respectively there is a tapped blind hole 3 at place, 4 right angles; Also comprise one second waveguide 5; The plane face flange 6 that a rectangle is arranged near the position of link in second waveguide 5; The rectangular profile size of plane face flange 6 equates with the rectangular profile size of choke flange 2; In plane face flange 6 and being connected of second waveguide 5 linkage section 5a is arranged between the end face, on the connection end face of plane face flange 6, respectively there is a screw via hole at place, 4 right angles, the position of these 4 screw via holes is corresponding one by one with 4 tapped blind holes 3 on the choke flange 2; Through 4 screws 7 choke flange 2 and plane face flange 6 are connected as one, the other end of second waveguide 5 and microwave power distribution structure are welded as integral body; When the link of first waveguide 1 with after the link of second waveguide 5 is connected, the linkage section 5a of second waveguide 5 is positioned at the choke chamber 2a of the first waveguide choke flange 2, second waveguide 5 keeps coaxial with first waveguide 1; It is characterized in that: an annular boss 2c around choke groove 2b is arranged on the connection end face of choke flange 2; The contour shape of annular boss 2c is a rectangle; The zone that connect on the end faces at choke flange 2, is positioned at annular boss 2c outside forms the rubber blanket installed surface of a rectangle frame shape, and 4 tapped blind holes 3 are positioned at the place, 4 right angles of above-mentioned rubber blanket installed surface; A rubber blanket 4 of being processed by conductive rubber is arranged; Its shape is identical with the shape of above-mentioned rubber blanket installed surface; Rubber blanket 4 is installed on the above-mentioned rubber blanket installed surface, at the place, 4 right angles of rubber blanket 4 a screw via hole is arranged respectively, and the position of above-mentioned screw via hole is corresponding with tapped blind hole 3; Thickness δ=t+ (0.3～0.6) mm of rubber blanket 4, t is the height of annular boss 2c.
The operation principle of the utility model is: the connection end face at choke flange 2 is provided with annular boss 2c; The rubber blanket 4 that conductive rubber is processed has been installed in the outside of annular boss 2c; Because the thickness of rubber blanket 4 is greater than the height of annular boss 2c, therefore, even have gap at random between the first waveguide link and the second waveguide link; These all can be eliminated by rubber blanket 4 in the gap at random, thus the electrical property after having guaranteed first waveguide and second waveguide being connected.
Embodiment 1
Height t=0.5mm of said annular boss 2c, the thickness δ=0.8mm of rubber blanket 4.20 pairs of rectangular waveguide links are arranged between certain type passive phased array radar microwave feed structure and microwave power distribution structure, connect back first waveguide and second waveguide and have good electrical properties.
Height t=0.8mm of said annular boss 2c, the thickness δ=1.3mm of rubber blanket 4.40 pairs of rectangular waveguide links are arranged between certain type passive phased array radar microwave feed structure and microwave power distribution structure, connect back first waveguide and second waveguide and have good electrical properties.
Height t=1mm of said annular boss 2c, the thickness δ=1.6mm of rubber blanket 4.50 pairs of rectangular waveguide links are arranged between certain type passive phased array radar microwave feed structure and microwave power distribution structure, connect back first waveguide and second waveguide and have good electrical properties.
Claims (1)
1. rectangular waveguide link tolerance structure; Comprise one first waveguide (1); The end that first waveguide (1) need be connected with second waveguide (5) has the choke flange (2) of rectangle; The other end and the microwave feed structure of first waveguide (1) are welded as integral body, and a choke chamber (2a) is arranged on the connection end face of choke flange (2), and the cavity profile of choke chamber (2a) is a cuboid; In the outside of choke chamber (2a) an annular choke groove (2b) around choke chamber (2a) is arranged, on the connection end face of choke flange (2), respectively there is a tapped blind hole (3) at place, 4 right angles; Also comprise one second waveguide (5); The plane face flange (6) that a rectangle is arranged near the position of link in second waveguide (5); The rectangular profile size of plane face flange (6) equates with the rectangular profile size of choke flange (2); In plane face flange (6) and being connected of second waveguide (5) linkage section (5a) is arranged between the end face, on the connection end face of plane face flange (6), respectively there is a screw via hole at place, 4 right angles, the position of these 4 screw via holes is corresponding one by one with 4 tapped blind holes (3) on the choke flange (2); Through 4 screws (7) choke flange (2) and plane face flange (6) are connected as one, the other end and the microwave power distribution structure of second waveguide (5) are welded as integral body; When the link of first waveguide (1) with after the link of second waveguide (5) is connected, the linkage section (5a) of second waveguide (5) is positioned at the choke chamber (2a) of the first waveguide choke flange (2), second waveguide (5) keeps coaxial with first waveguide (1); It is characterized in that: an annular boss around choke groove (2b) (2c) is arranged on the connection end face of choke flange (2); The contour shape of annular boss (2c) is a rectangle; On choke flange (2) connects end face, the zone that is positioned at annular boss (2c) outside forms the rubber blanket installed surface of a rectangle frame shape, 4 tapped blind holes (3) are positioned at the place, 4 right angles of above-mentioned rubber blanket installed surface; A rubber blanket of being processed by conductive rubber (4) is arranged; Its shape is identical with the shape of above-mentioned rubber blanket installed surface; Rubber blanket (4) is installed on the above-mentioned rubber blanket installed surface, at the place, 4 right angles of rubber blanket (4) a screw via hole is arranged respectively, and the position of above-mentioned screw via hole is corresponding with tapped blind hole (3); Thickness δ=t+ (0.3～0.6) mm of rubber blanket (4), t is the height of annular boss (2c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205749545U CN202474146U (en) | 2011-12-27 | 2011-12-27 | Rectangular waveguide connecting end tolerance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205749545U CN202474146U (en) | 2011-12-27 | 2011-12-27 | Rectangular waveguide connecting end tolerance structure |
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| Publication Number | Publication Date |
|---|---|
| CN202474146U true CN202474146U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205749545U Expired - Fee Related CN202474146U (en) | 2011-12-27 | 2011-12-27 | Rectangular waveguide connecting end tolerance structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104812919A (en) * | 2012-10-30 | 2015-07-29 | 技术资源有限公司 | An apparatus and a method for treatment of mined material with electromagnetic radiation |
| CN108401411A (en) * | 2018-05-08 | 2018-08-14 | 广州辰创科技发展有限公司 | A kind of choke groove coalignment of installation reed |
| CN108649306A (en) * | 2018-03-28 | 2018-10-12 | 西安空间无线电技术研究所 | A kind of low passive intermodulation waveguide flange and design method |
| CN108666717A (en) * | 2018-03-28 | 2018-10-16 | 西安空间无线电技术研究所 | A kind of non-contact type low passive intermodulation waveguide connection structure and design method |
| CN113725567A (en) * | 2021-08-30 | 2021-11-30 | 胡南 | Waveguide with radio frequency choke |
-
2011
- 2011-12-27 CN CN2011205749545U patent/CN202474146U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104812919A (en) * | 2012-10-30 | 2015-07-29 | 技术资源有限公司 | An apparatus and a method for treatment of mined material with electromagnetic radiation |
| CN108649306A (en) * | 2018-03-28 | 2018-10-12 | 西安空间无线电技术研究所 | A kind of low passive intermodulation waveguide flange and design method |
| CN108666717A (en) * | 2018-03-28 | 2018-10-16 | 西安空间无线电技术研究所 | A kind of non-contact type low passive intermodulation waveguide connection structure and design method |
| CN108666717B (en) * | 2018-03-28 | 2022-03-04 | 西安空间无线电技术研究所 | Non-contact low-passive intermodulation waveguide connection structure and design method |
| CN108401411A (en) * | 2018-05-08 | 2018-08-14 | 广州辰创科技发展有限公司 | A kind of choke groove coalignment of installation reed |
| CN113725567A (en) * | 2021-08-30 | 2021-11-30 | 胡南 | Waveguide with radio frequency choke |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20161227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |