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Patent US3654571A successfully refreshed from Google Patents.
US3654571A
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Broadband end coupling
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1970-09-18
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Granted: 1972-04-04
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Expires: 1990-09-18
Abstract
Abstract A broadband end coupling arrangement for coupling a coaxial transmission line into a waveguide. The coupling is achieved by providing the center conductor of the coaxial line, which extends axially into the waveguide, with a transverse coupling pin the face of which forms an adjustable capacitor with the oppositely disposed waveguide wall, and by providing at least one bar which is parallel to the center conductor and connected at one of its ends to the free end of the center conductor via a crossbar and at its other end to the outer conductor of the coaxial line so that the length of the coupling loop from the coupling loop to the outer conductor via the crossbar and the additional bar is approximately 3/4 lambda .
Inventors
- 👤 Friedrich Rucker
- 👤 Gunter Morz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:23
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/10; H01P5/103
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
198 words
A broadband end coupling for coupling a coaxial line into a waveguide comprising: a section of coaxial line having an inner and an outer conductor with the inner conductor extending axially beyond the outer conductor; means for mounting said section of coaxial line on the end of a section of waveguide so that said extended portion of said inner conductor extends axially into the waveguide; a crossbar connection at the free end of said inner conductor; at least one conductive bar disposed parallel to said extended portion of said inner conductor and connected at its respective ends to said crossbar and to said outer conductor of said coaxial line; and, a coupling pin attached to said extended portion of said inner conductor and extending perpendicular thereto so that the frontal face of said coupling pin will form an adjustable capacitor with the oppositely disposed wall of the waveguide, said coupling pin being attached to said inner conductor at an axial distance from said outer conductor so that the length of the coupling loop from said coupling pin to said outer conductor via said crossbar and conductive bar, and which extends into the waveguide, is approximately 3/4 lambda .
Claim 2
Dependent Claim
198 words
A broadband end coupling for coupling a coaxial line into a waveguide comprising: a section of coaxial line having an inner and an outer conductor with the inner conductor extending axially beyond the outer conductor; means for mounting said section of coaxial line on the end of a section of waveguide so that said extended portion of said inner conductor extends axially into the waveguide; a crossbar connection at the free end of said inner conductor; at least one conductive bar disposed parallel to said extended portion of said inner conductor and connected at its respective ends to said crossbar and to said outer conductor of said coaxial line; and, a coupling pin attached to said extended portion of said inner conductor and extending perpendicular thereto so that the frontal face of said coupling pin will form an adjustable capacitor with the oppositely disposed wall of the waveguide, said coupling pin being attached to said inner conductor at an axial distance from said outer conductor so that the length of the coupling loop from said coupling pin to said outer conductor via said crossbar and conductive bar, and which extends into the waveguide, is approximately 3/4 lambda .
Claim 3
Dependent Claim
37 words
The end coupling as defined in claim 1 wherein said coupling pin is attached to said extended portion of said inner conductor at an axial distance from said outer conductor of between lambda /8 and lambda /4.
Claim 4
Dependent Claim
20 words
The end coupling as defined in claim 1 wherein the said coupling pin is conically widened toward its frontal face.
Claim 5
Dependent Claim
21 words
The end coupling as defined in claim 3 wherein a screw is disposed in the frontal face of said coupling pin.
Claim 6
Dependent Claim
15 words
The end coupling as defined in claim 1 wherein only one conductive bar is provided.
Claim 7
Dependent Claim
55 words
The end coupling as defined in claim 5 including a waveguide section of square or circular cross-section to which said coupling is connected and into which said inner conductor axially extends, and wherein said bar is located on the side of said extended portion of said inner conductor which faces away from said coupling pin.
Claim 8
Dependent Claim
58 words
The end coupling as defined in claim 1 including a section of waveguide having a flange terminating the end thereof; wherein said means for mounting said coaxial line section comprises a corresponding end flange; and wherein said flanges are connected together so that said section of coaxial line and said section of waveguide form a single structural unit.
Claim 9
Dependent Claim
53 words
The end coupling as defined in claim 1 including a waveguide section constructed as an adapter between an elliptical corrugated waveguide and a standardized rectangular waveguide; and wherein said coupling pin extends in the direction of the E vector of the wave to be excited in the rectangular portion of said waveguide section.
References Cited (Backward Citations)
US2845601A
Cited
US2976498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |