Electromagnetic shielding by metallized fabric enclosure: theory and experiment

Determination of electromagnetic shielding performance of plain knitting and 1X1 rib structures with coaxial test fixture relating to ASTM D4935

“…This test fixture does not rely on electrical contact with the sample. For this reason, this test fixture is more proper for the shielding effectiveness measurements of surface-insulated structures as fabrics and fabric-reinforced composites (Blanchard et al, 1988;Kinningham & Yenni, 1998;Wilson et al, 1986;Yoshino et al, 1990). As shown in Figures 3 and 4, both reference and load measurements are required for SE determination.…”

“…891 standards that use the insertion loss technique are ASTM ES-7 Dual Chamber Test Fixture, ASTM ES-7 Coaxial Transmission Line, ASTM D 4935 Flanged Coaxial Test Fixture and Modified MIL-STD-285 Test Method (Blanchard, Tesche, Sands, & Vandre, 1988;Hock & Houw, 1999;Kinningham & Yenni, 1998;Pocai & Bottari, 2003;Tamburrano & Sarto, 2004;Wilson, Adams, & Ma, 1986;Yoshino, Miyake, & Morita, 1990).…”

A contribution to shielding effectiveness analysis of shielded tents

“…On the other hand, the SE in this frequency range is frequency independent. These two facts are crucial and were experimentally verified and reported first time by Blanchard [2] in 1988. and many times after.…”

“…The electromagnetic shielding characteristic of novel materials, like metallized fabric, thin foils, or metallic sprays are often questioned, and the problem has been partially solved from the theoretical and practical point of view by Blanchard, et. al., [2]. Analysis of SE characteristic related to structures having finite dimensions and being made of thin multilayered composite material such as ACM and/or GFRC is only possible by the use of numerical techniques e.g.…”