A brief discussion of EMI shielding materials

The concepts and materials for reducing electromagnetic interference (EMI) are reviewed. Configurations that are and are not susceptible to EMI are discussed. EMI-reducing materials (absorbers) that are dielectric or magnetic, uniform or nonuniform, chiral or nonchiral, and natural or synthetic are discussed. Absorber design depends on the frequency range, the quantity of shielding required, and the physical characteristics of the devices being shielded.<
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