Low impedance shield termination methods

Experience has shown that building cables with low impedance shield terminations is a very efficient way of reducing emissions from equipment. The material presented defines a fabrication technique that provides a low impedance bond between a cable shield and connector backshell. Historically, a cable shield termination used a ferrule and drain wire (pigtail) combination, bonding the shield to the connector backshell. The method defined in this paper uses shielding wrap to extend the outer shield of the cable onto the backshell of the connector, providing a low impedance shield termination (without pigtails). Shield terminations involving EMI backshells is also explored, along with cable preparation details