Patent US3852690A successfully refreshed from Google Patents.
US3852690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave transmission line to ground plane transition
Assignee: General Electric Co
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Filing: 1973-01-02
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Granted: 1974-12-03
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Expires: 1993-01-02
Abstract
Abstract In order to provide a transition from a ground plane of a component such as a stripline or microstrip conductor on a substrate, for connection to a conductor such as the wall of a microcircuit package at ground potential, a thin, flexible metallic strap of low resistance material is bonded to the metallization forming the ground plane and connected to the conductor. A reliable, inspectable bond to the ground plane is provided, and the ground plane may be bonded in a package with a resilient material. Reliable, inspectable bonding of the strap to the ground plane is thus provided even in packages made of materials which do not match the thermal expansion rates of substrate materials.
Inventors
- 👤 T Telfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:13
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/085; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0237; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3405; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
A method for providing a low resistance transition from a coaxial cable to a substrate having metallized circuit areas on both surfaces, one of the latter being a ground plane microwave circuit, comprising the steps of: providing a strap of thin conductive material with an aperture near one end thereof; conductively joining an end of said strap to said substrate ground plane circuit; positioning said substrate on a conductive support member having a coaxial cable affixed thereto with the outer conductor electrically joined therewith, the aperture in said strap being aligned such that the center conductor of said cable extends therethrough; bonding said substrate and said strap to said support member; and conductively joining said center conductor to a circuit area on said substrate located on the opposite side of said substrate from, and in registration with, the portion of said ground plane circuit which is bonded to said strap.
Claim 2
Independent Claim
150 words
A method for providing a low resistance transition from a coaxial cable to a substrate having metallized circuit areas on both surfaces, one of the latter being a ground plane microwave circuit, comprising the steps of: providing a strap of thin conductive material with an aperture near one end thereof; conductively joining an end of said strap to said substrate ground plane circuit; positioning said substrate on a conductive support member having a coaxial cable affixed thereto with the outer conductor electrically joined therewith, the aperture in said strap being aligned such that the center conductor of said cable extends therethrough; bonding said substrate and said strap to said support member; and conductively joining said center conductor to a circuit area on said substrate located on the opposite side of said substrate from, and in registration with, the portion of said ground plane circuit which is bonded to said strap.
Claim 3
Dependent Claim
136 words
In an r-f circuit for frequencies above 100 MHz means for connecting a coaxial cable to a substrate having metallized circuit areas on both surfaces, one of the latter being a ground plane circuit, comprising: electrically conductive support means for supporting said coaxial cable adjacent said substrate, the center conductor of said cable being electrically joined to a circuit area on said substrate opposite said ground plane circuit and the outer conductor of said cable being electrically joined to said support means; a thin conductive strap conductively joined to said ground plane circuit at a location which is in registration with said center conductor connection point and having an aperture through which said center conductor extends; and means for conductively joining said strap to said support means at an area of the former adjacent said aperture.
Claim 4
Dependent Claim
136 words
In an r-f circuit for frequencies above 100 MHz means for connecting a coaxial cable to a substrate having metallized circuit areas on both surfaces, one of the latter being a ground plane circuit, comprising: electrically conductive support means for supporting said coaxial cable adjacent said substrate, the center conductor of said cable being electrically joined to a circuit area on said substrate opposite said ground plane circuit and the outer conductor of said cable being electrically joined to said support means; a thin conductive strap conductively joined to said ground plane circuit at a location which is in registration with said center conductor connection point and having an aperture through which said center conductor extends; and means for conductively joining said strap to said support means at an area of the former adjacent said aperture.
Claim 5
Dependent Claim
29 words
The combination set forth in claim 1 wherein said support means is oriented such that the axis of said cable is supported in a direction parallel to said substrate.
Claim 6
Dependent Claim
29 words
The combination set forth in claim 1 wherein said support means is oriented such that the axis of said cable is supported in a direction perpendicular to said substrate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |