Sheet absorbing material modeling and application for enclosures

This paper demonstrates relevant physics and provides recommendations regarding thin sheet absorber material applications in enclosures of electronic circuitry. Sheet absorbers placed on the walls of an enclosure are studied herein both experimentally and through the full-wave numerical simulations. In practical applications, the applied absorbing patches need to be selected in terms of proper material type, thickness, size, and placement within an enclosure. The goal is to achieve the maximum effectiveness to suppress electromagnetic field at problem resonances in the enclosure.