High-Speed Digital System Design: A Handbook of Interconnect Theory and Design Practices
High-Speed Digital System Design: A Handbook of Interconnect Theory and Design Practices
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In this paper, we propose an EMI (Electromagnetic Interference) reduction technique by employing a conductive connection between frames. Several cconductors were used to connect two frames, which might provide another return path of signal current loop, and reduce the DM (Differential Mode) radiation from the cable. To prove the effectiveness of the conductor connection, we investigated two cases: (1) without any conductor below cable, (2) installing three different conductors of small, medium, and large sized-conductors. The results were obtained from both measurement and full-wave simulation, and we observed that EMI decreased about 1 to 10 dB μV in the frequency range from 30MHz to 1GHZ.