Shielding effectiveness study of two fabrics with microwave properties before and after high power irradiation

Over the past decade several applications for fabrics with electromagnetic properties have emerged, most of them relating to garments, including jackets with built-in antennas and workwear with increased radar visibility. Beside these have surfaced two protective applications, namely to protect transports of confidential equipment from discovery and identification; and to protect sensitive apparatus from damage by high power electromagnetic irradiation e.g. in field operations. In this paper results are presented from measurement of shielding effectiveness before and after high power radiation for two types of fabrics under consideration for the latter applications. Shielding effectiveness measurements have been conducted between 1 and 18 GHz while the high power irradiation was given with 28 kV/m at 1300 MHz.