ABSTRACT
This chapter focuses on cable shielding and terminations. Cables and connectors are very important players in the Electromagnetic interference (EMI) game. Common Mode (CM) and Differential Mode (DM) interference both exist side by side, and each must be addressed, as the remedies are essentially separate. A key issue when designing cables is determining the necessary frequency range. This includes both the intended frequency range and the threat frequency range. For example, an Alternate Current (AC) power cable only needs a 60 Hz bandwidth, but it may be exposed to Radio Frequency (RF) threats well into the gigahertz range. Many EMI problems are due to using a low frequency shield for a high frequency application, and vice versa. In some cases separate low and high frequency shields may be necessary. The intended frequency range is a very important parameter for shielded cable design.
