HYBRID FACEPLATE HAVING REDUCED EMI EMISSIONS

摘要

A hybrid plastic-metal faceplate having reduced EMI emissions for use with electric circuit card rack systems. The faceplate uses an electrically conductive thermoplastic front plate that is simpler to construct. The faceplate also includes a first metal element in electrically conducting contact with the front plate and a second metal element in electrically conducting contact with the front plate. The plastic-metal faceplates have an EMI shielding effectiveness of 20 dB or greater across the range of frequencies of 0 MHz to 1.0 GHz. The faceplate may be used in a variety of different applications, such as electric circuit card rack systems, to reduce EMI (electromagnetic interference) emissions from the electric circuit card system.