US4654755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave/millimeter wave ground plane
Assignee: Voice Signals LLC
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Filing: 1986-03-03
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Granted: 1987-03-31
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Expires: 2006-03-03
Abstract
Abstract The present invention consists of a ground plane comprising a conductive foil placed between a printed wire board and a chassis. The foil is deformed to provide a plurality of raised areas such that if buckling of the printed wire board occurs, the deformed areas will continue to maintain contact between the printed wire board and the chassis.
Inventors
- 👤 James M. Henderson
- 👤 Gordon C. Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:25
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/48; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0215
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
A microwave/millimeter wave ground plane comprising: a chassis having a first side; a printed wire board having a second side coupled to said first side of said chassis; and a ground plane being disposed between said first side of said chassis and said second side of said printed wire board, said ground plane having a plurality of deformations distributed throughout and making uniform contact to both said first side of said chassis and said second side of said printed wire board throughout the area where said ground plane is sandwiched.
Claim 2
Dependent Claim
90 words
A microwave/millimeter wave ground plane comprising: a chassis having a first side; a printed wire board having a second side coupled to said first side of said chassis; and a ground plane being disposed between said first side of said chassis and said second side of said printed wire board, said ground plane having a plurality of deformations distributed throughout and making uniform contact to both said first side of said chassis and said second side of said printed wire board throughout the area where said ground plane is sandwiched.
Claim 3
Dependent Claim
17 words
A microwave/millimeter wave ground plane comprising an electrically conducting foil having a plurality of deformations distributed throughout.
Claim 4
Dependent Claim
17 words
A microwave/millimeter wave ground plane comprising an electrically conducting foil having a plurality of deformations distributed throughout.
Claim 5
Dependent Claim
111 words
A microwave/millimeter wave ground plane comprising: a chassis having a first side; a printed wire board having a second side; a ground plane formed of a deformable electrically conducting material having a plurality of deformations with each deformation being formed of a portion of said material displaced from said ground plane, said ground plane being disposed between said first side of said chassis and said second side of said printed wire board, said deformations allowing uniform contact therebetween; mechanical means fixedly attaching said printed wire board to said chassis with said ground plane sandwiched therebetween and contacting said first and second sides over substantially the entire area and substantially uniformly throughout.
Claim 6
Dependent Claim
111 words
A microwave/millimeter wave ground plane comprising: a chassis having a first side; a printed wire board having a second side; a ground plane formed of a deformable electrically conducting material having a plurality of deformations with each deformation being formed of a portion of said material displaced from said ground plane, said ground plane being disposed between said first side of said chassis and said second side of said printed wire board, said deformations allowing uniform contact therebetween; mechanical means fixedly attaching said printed wire board to said chassis with said ground plane sandwiched therebetween and contacting said first and second sides over substantially the entire area and substantially uniformly throughout.
References Cited (Backward Citations)
FR1024252A
Cited
US2876277A
Cited
US3436467A
Cited
US3580981A
Cited
DE2164371A1
Cited
DE2357892A1
Cited
DE2638293A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |