Characterization of Geometry and Layering in Carbon Fiber Composite-based Electromagnetic Interference Shielding

摘要

OBJECTIVE Electromagnetic interference shielding attempts to minimize deleterious and erroneous signals that can be generated by modern electrical appliances by creating a barrier that reduces the wave's propagation. Currently, the standard for electromagnetic shielding consists of a thin layer of copper deposited over the housing of the shielded electronics. This copper layer adequately impedes the propagation of electromagnetic waves, however it suffers from a variety of undesirable properties. A small scratch in the copper can easily compromise the shielding effectiveness of the housing, eddy currents can be generated within the shielding, sublimation or spray shielding is often cost inefficient, and gaps in the construction of the housing cause electrical breaks resulting in a decrease of shielding effectiveness.