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1. (WO2018142130) LOCATION OF A SOURCE OF PASSIVE INTERMODULATION IN A FREQUENCY SELECTIVE DEVICE

Pub. No.:    WO/2018/142130    International Application No.:    PCT/GB2018/050282
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Thu Feb 01 00:59:59 CET 2018
IPC: H04B 17/26
G01R 23/20
H04B 17/00
Applicants: ACEAXIS LIMITED
Inventors: GALE, Simon
BEVAN, David Damian Nicholas
WILSON, Fiona
CHAPMAN, Nigel
Title: LOCATION OF A SOURCE OF PASSIVE INTERMODULATION IN A FREQUENCY SELECTIVE DEVICE
Abstract:
The location of at least one PIM (passive intermodulation) source in a frequency selective device (2) is identified by applying (3) an excitation waveform to the frequency selective device, measuring (7) a PIM response signature of the frequency selective device, the PIM response signature being a characteristic of PIM produced in response to the excitation waveform, and comparing (8) the measured PIM response signature with example PIM response signatures, each example PIM response signature corresponding to a characteristic of PIM expected for a respective location of a PIM source in the frequency selective device.