ABSTRACT
Cables can act as antennas and radiate electromagnetic interference (EMI) energy at frequencies above 30 MHz. Interconnecting cable shielding and grounding play an important role for a successful electronic system design in meeting electromagnetic compatibility (EMC) compliance requirements. Limiting radiated EMI from a cable can be achieved by placing the cable’s conductors inside a shield. The most important decision is to select the best material, right style, and wrap configuration of the shielding itself. Effective shielding is only part of the solution; terminations and grounding of the shield are also critical to solve the EMI problem and meet EMC requirements. Cable shielding and grounding have been widely applied in telecommunication, instrumentation, electronic data processing in places such as internal and external computer data cables, internal and external power cables, internal floppy disk and hard disk ribbon cables, and cables between printed circuit boards (PCBs) and data connectors.
