Minimizing PiM generation from RF cables and connectors
May 24, 2012 // SanTron // 0 commentsDownload White Paper 2Mo
Understanding mechanical tolerances, coaxial design details and connector materials used in cable assemblies helps produce communications equipment with the lowest levels of passive intermodulation (PIM).
Communications system interference can come in many forms, but one of the most difficult to defeat is passive intermodulation (PiM) distortion. Unlike noise, which tends
to cover broad bandwidths and is easily filtered, PiM results in discrete signals that fall within the operating bandwidth of a wireless communications receiver, capable of blocking desired signals. at sufficiently high magnitudes, PiM distortion can desensitize a communications receiver, resulting in poor quality of calls in a cellular system or even dropped calls.
Reliable communications system performance depends on minimizing PiM and choosing the right cable assemblies can go a long way towards helping to shave PiM distortion.
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