Assessment of Broadband Shielding Effectiveness of Composite Panels for Protective Enclosures

The article investigates the shielding effectiveness (SE) of a metallic enclosure with multilayer composite cover over wide frequency range, from near-field magnetic (1 Hz–1 MHz) to far-field electromagnetic (4–14 GHz). Two enclosures are considered: conductive made aluminum and steel. is trilayer combining thin layer graphene Fe-Ni alloy on either side fiberglass plate. To determine SE these in both low-frequency high-frequency approaches, two experimental setups numerical models developed. use cover, instead one, gives similar level higher specific (i.e., divided by material density) 1 Hz 2 kHz. Such quantitative analysis first step designing practical entirely covered panels face compatibility (EMC) constraints embedded systems.