US3778735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission line of low characteristic impedance
Assignee: Compagnie Europeenne de Composants Electroniques LCC CICE
•
Filing: 1972-05-04
•
Granted: 1973-12-11
•
Expires: 1992-05-04
Abstract
Abstract A transmission line for electrical signals of very low characteristic impedance, produced from a strip of chemically reduced ceramic in order to create a low-resistivity medium, then re-oxidized at the surface in order to produce two films of high dielectric constant, covered with metallized coatings on the dielectric films, and fitted with distribution connections soldered to these coatings for the signals.
Inventors
- 👤 J Steenmetser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:14
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A transmission line for electrical signals, including longitudinal layers made on the one hand of a dielectric material and on the other of low-resistivity materials, and comprising distribution connections for said signals, wherein said dielectric material is in the form of two fine dielectric layers separated by a layer of a first material having low resistivity, the latter one and said dielectric layers being assembled in one and the same solid strip of continuous material, and said dielectric layers are each covered with a layer of a second lowresistivity material including a metal, to which said distribution connections are electrically connected.
Claim 2
Dependent Claim
101 words
A transmission line for electrical signals, including longitudinal layers made on the one hand of a dielectric material and on the other of low-resistivity materials, and comprising distribution connections for said signals, wherein said dielectric material is in the form of two fine dielectric layers separated by a layer of a first material having low resistivity, the latter one and said dielectric layers being assembled in one and the same solid strip of continuous material, and said dielectric layers are each covered with a layer of a second lowresistivity material including a metal, to which said distribution connections are electrically connected.
Claim 3
Dependent Claim
51 words
A transmission line as claimed in claim 1, wherein said strip is a ceramic strip, said layer of first low-resistivity material including the central part of said strip and being a chemical reduction of the ceramic of said strip, and said dielectric layers being re-oxidized surface-thin films of said ceramic strip.
Claim 4
Dependent Claim
32 words
A transmission line as claimed in claim 1, wherein said layers of the second low-resistivity material are metal deposits on said dielectric layers, and said distribution connections are soldered to said deposits.
Claim 5
Dependent Claim
33 words
A transmission line as claimed in claim 1, wherein said layers of the second low-resistivity material are metal strips fixed to said dielectric layers strips in which said distribution connections have been cut.
Claim 6
Dependent Claim
44 words
A transmission line as claimed in claim 1, wherein said strip is split up into adjacent plates, the series of said plates being assembled by two metal strips constituting said layers of the second low-resistivity material, in which said distribution connections have been cut.
Claim 7
Dependent Claim
22 words
A transmission line as claimed in claim 4 wherein said metal strips are assembled by a metal deposit on said dielectric layers.
Claim 8
Dependent Claim
20 words
A transmission line as in claim 5, including a metal deposit on said dielectric layers for assembling said metal strips.
Claim 9
Dependent Claim
92 words
Method of manufacturing a transmission line for electrical signals including two fine dielectric layers separated by a layer of a first material having low resistivity, the latter one and said dielectric layers being assembled in one and the same solid strip of continuous material, compRising the distinct following steps: chemical reduction of a ceramic strip for producing said first material having low resistivity, and re-oxidation of said ceramic strip for producing said fine dielectric layers at its surface, the remaining central part of said strip constituting said layer of a first material.
Claim 10
Dependent Claim
92 words
Method of manufacturing a transmission line for electrical signals including two fine dielectric layers separated by a layer of a first material having low resistivity, the latter one and said dielectric layers being assembled in one and the same solid strip of continuous material, compRising the distinct following steps: chemical reduction of a ceramic strip for producing said first material having low resistivity, and re-oxidation of said ceramic strip for producing said fine dielectric layers at its surface, the remaining central part of said strip constituting said layer of a first material.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |