Patent US3568098A successfully refreshed from Google Patents.
US3568098A
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US
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Microwave stripline devices
Assignee: Anaren Microwave Inc
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Filing: 1969-06-23
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Granted: 1971-03-02
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Expires: 1989-06-23
Abstract
Abstract There is disclosed microwave stripline devices wherein a pair of parallel striplike signal conductors electromagnetically coupled and in one plane and a planar field modifying element in another plane are disposed between a pair of spaced ground plane elements. In one variation, signal terminals are connected to each end of each signal conductor to provide a backward wave coupler. In another variation signal terminals are connected to one end of each signal conductor, respectively, and the other ends of each signal conductor are interconnected to provide a phase shifter.
Inventors
- 👤 Carl W Gerst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:06
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/18; H01P5/184; H01P5/185; H01P1/00; H01P1/18; H01P1/184; H01P5/187
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
A microwave stripline device comprising first and second outer ground plane elements, said ground plane elements being in spaced parallel relationship, first and second signal conductors disposed in a plane which is parallel to and between said ground plane elements, each signal conductors being substantially onequarter of an operating wavelength long and having the same given width, said signal conductors being at least electromagnetically coupled to each other, first signal terminal means connected to one end of said first signal conductor, second signal terminal means connected to one end of said second signal conductor, each of said signal terminal means having a width greater than said given width, and a planar field-modifying element disposed parallel to and between said first ground plane element and the plane of said signal conductors, said planar field-modifying element being a planar member of conductive material having a width sufficient to transversely span said first and second signal conductors and a length substantially equal to the length of said signal conductors.
Claim 2
Dependent Claim
166 words
A microwave stripline device comprising first and second outer ground plane elements, said ground plane elements being in spaced parallel relationship, first and second signal conductors disposed in a plane which is parallel to and between said ground plane elements, each signal conductors being substantially onequarter of an operating wavelength long and having the same given width, said signal conductors being at least electromagnetically coupled to each other, first signal terminal means connected to one end of said first signal conductor, second signal terminal means connected to one end of said second signal conductor, each of said signal terminal means having a width greater than said given width, and a planar field-modifying element disposed parallel to and between said first ground plane element and the plane of said signal conductors, said planar field-modifying element being a planar member of conductive material having a width sufficient to transversely span said first and second signal conductors and a length substantially equal to the length of said signal conductors.
Claim 3
Dependent Claim
48 words
The microwave stripline device of claim 1 further comprising third signal terminal means connected to the other end of said first signal conductor and fourth signal terminal means connected to the other end of said second signal conductor whereby said microwave stripline device is a backward wave coupler.
Claim 4
Dependent Claim
35 words
The microwave stripline device of claim 1 further comprising a further signal conductor conductively interconnecting the other ends of said first and second signal conductors whereby said microwave stripline device is a broadband phase shifter.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |