Line isolation and interference shielding for a shielded conduct

Details Line isolation and interference shielding for a shielded conduct Line isolation and interference shielding for a shielded conduct

1981-07-13

1983-08-16

Nussbaum, Marvin L.

Wave transmission lines and networks

Transmission line inductive or radiation interference...

333206, 333245, 333260, 334 85, H03H 701, H01P 1202, H01P 1215

Patent

active

043994199

ABSTRACT:
A method and structure is disclosed for isolating the shield of a shielded conductor system from a low frequency power source to which the shield may be connected. In one embodiment, the isolation technique includes providing an interruption in the conductor's shield and situating within the interruption dielectric and magnetically absorptive material so as to create at least a pair of capacitance across the interruption, and such that the capacitances are separated by magnetically absorptive material. In this manner, low frequency isolation is achieved and the field within the cable is shielded from ambient high frequency electromagnetic interference which could otherwise leak through the interruption into a desired high frequency signal path within the conductor. In other embodiments, at least some of the dielectric material forms part of a series resonator to improve attenuation of electromagnetic interference at low VHF frequencies.

REFERENCES:
patent: 3617607 (1971-11-01), Williams
patent: 3908176 (1975-09-01), Deboer
patent: 3970969 (1976-07-01), Sirel et al.
patent: 4267529 (1981-05-01), Brun et al.
"RCA Television Service Data-Chassis CTC 108 Series" RCA Corporation Consumer Electronics, Copyright 1980; Title Page and p. 50.

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