Accession Number : ADP002528

Title :   Aluminum Foil Shield Effectiveness for Electronic Cables,


Personal Author(s) : Lombardo,M. R.

Report Date : 17 NOV 1983

Pagination or Media Count : 7

Abstract : Historically, shielding of electronic cables has been expressed in terms of shield coverage. The numeric value used to delineate shield coverage corresponded to the actual area of the conductors covered by the cable shield. Generally, the larger the percentage of coverage the greater the shield's effectiveness. Presently, with the advent of more sensitive, more sophisticated equipment 100% shield coverage has not been totally adequate. Shield effectiveness can be defined as the functional capability of a shield. The shield must prevent any external signal from entering the conductors and also prevent the conductors from radiating signals beyond the shield. Both parameters of this function are important, but not necessarily proportional. This problem of proportionality occurs primarily in the type cable described herein. (Author)

Descriptors :   *Electric cables, *Shielding, *Aluminum foil, Test methods, Operational effectiveness

Distribution Statement : APPROVED FOR PUBLIC RELEASE