US3757028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terference printed board and similar transmission line structure for reducing in
Assignee: Individual
•
Filing: 1972-09-18
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Granted: 1973-09-04
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Expires: 1992-09-18
Abstract
Abstract A novel transmission-line structure, particularly adapted for printed circuit sheets and the like, and embodying zig-zag line conductors formed of conductive strips successively disposed on opposite sides of the insulating sheet and interconnected transversely through the sheet, with the corresponding strips of each line conductor crossing those of the other line conductor, through on opposite sides of said sheet, effectively to provide a twist of the line conductors through at least a turn to effect magnetic field cancellation, self-shielding and interference suppression.
Inventors
- 👤 J Schlessel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:13
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/002; H05K9/0039; H01; H01B; H01B11/00; H01B11/02; H01B7/00; H01B7/08; H05K1/00; H05K1/02; H05K1/0213; H05K1/0216; H05K1/0228; H05K1/0237; H05K1/0245; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/09218; H05K2201/09245; H05K2201/09654; H05K2201/097
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
118 words
A transmission line structure carried by an insulating sheet, having in combination with the said sheet, a pair of zig-zag transmission line conductors each comprising a plurality of conductive strips successively disposed on opposite sides of said sheet and interconnected by conductive means extending transversely through said sheet; input and output terminal means correspondingly provided at the strips at opposite ends of the line conductors; and the line conductors being disposed such that the corresponding strips of each line conductor cross those of the other line conductor, though on opposite sides of said sheet, effectively to provide a twist of thE transmission line conductors through at least a turn to effect magnetic field cancellation, self-shielding, and interference suppression.
Claim 2
Dependent Claim
118 words
A transmission line structure carried by an insulating sheet, having in combination with the said sheet, a pair of zig-zag transmission line conductors each comprising a plurality of conductive strips successively disposed on opposite sides of said sheet and interconnected by conductive means extending transversely through said sheet; input and output terminal means correspondingly provided at the strips at opposite ends of the line conductors; and the line conductors being disposed such that the corresponding strips of each line conductor cross those of the other line conductor, though on opposite sides of said sheet, effectively to provide a twist of thE transmission line conductors through at least a turn to effect magnetic field cancellation, self-shielding, and interference suppression.
Claim 3
Dependent Claim
23 words
A transmission-line structure as claimed in claim 1 and in which said zig-zag configuration comprises a plurality of substantially equal-length successive conductive strips.
Claim 4
Dependent Claim
21 words
A transmission-line structure as claimed in claim 1 and in which said zig-zag configuration comprises conductive strips each of substantially Z-shape.
Claim 5
Dependent Claim
23 words
A transmission-line structure as claimed in claim 1 and in which said zig-zag configuration comprises conductive strips of a plurality of different lengths.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |