Wave transmission lines and networks – Transmission line inductive or radiation interference...
Patent
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.
Nussbaum Marvin L.
Zenith Radio Corporation
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