Over the past decade several applications forfabrics with electromagnetic properties have emerged, most ofthem relating to garments, including jackets with built-inantennas and workwear with increased radar visibility. Besidethese have surfaced two protective applications, namely toprotect transports of confidential equipment from discoveryand identification; and to protect sensitive apparatus fromdamage by high power electromagnetic irradiation e.g. in fieldoperations. In this paper results are presented frommeasurement of shielding effectiveness before and after highpower radiation for two types of fabrics under considerationfor the latter applications. Shielding effectivenessmeasurements have been conducted between 1 and 18 GHzwhile the high power irradiation
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