Passive Intermodulation Distortion in Connectors, Cable and Cable Assemblies

摘要

Although not a new problem and well known to the satellite communications and microwave trunking industries, until the use of cellular phones became widespread, Passive Intermodulation Distortion (PIM) was of little concern to the connector designer. Until five years ago, most connector engineers had never heard of the phenomenon. Now, due to the frequency plans of today's modern base stations, the use of higher transmitter power levels and more sensitive receivers, PIM has surfaced as a potential problem for GSM, DCS, PCS and other wireless services.