Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1992-04-27
1993-11-16
Nimmo, Morris H.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
156 55, 156 56, 174117FF, 174268, H05K 100, H05K 300
Patent
active
052625907
ABSTRACT:
An improved flexible circuit assembly arranged in stripline cable or microstrip configuration with shielding and also being designed with a predetermined characteristic impedance. The flexible printed circuits function as printed cables, and employ spacers on either side of the circuit traces so as to provide ground planes at a predetermined dimensional spacing from the traces comprising the circuit pattern. The arrangement of the present invention further comprises placing two or three individual conductor panels on a common substrate, so as to accommodate folding of the circuit panels, one over the other, to form a multi-layer sandwich. Elongated slots are formed along the fold lines so as to improve the integrity of the assembly, and to reduce buckling.
REFERENCES:
patent: 2703854 (1955-03-01), Eisler
patent: 2963535 (1960-12-01), Wegener et al.
patent: 3132203 (1964-05-01), Ecker
patent: 3462542 (1969-08-01), Richter
patent: 3876964 (1975-04-01), Balaster et al.
patent: 3979763 (1976-09-01), Mills
patent: 4461076 (1984-07-01), Plummer, III
patent: 4902236 (1990-02-01), Hasircoglu
patent: 4913662 (1990-04-01), Noy
patent: 5134252 (1992-07-01), Himeno et al.
Nimmo Morris H.
Sheldahl Inc.
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