Patent ID: 9354262
Filing Date: 2016-05-31
CPC Classification: G01R,H04B

Claim Text:
1. An apparatus for specifying a location of a passive intermodulation (PIM) generation source in a transmission line, the apparatus comprising: a reference signal source configured to provide a reference signal having a same frequency as a distortion component of a signal generated at the pim generation source, the reference signal source comprises a circuit arrangement that uses a nonlinear element for generating, wherein, based on the signal from the frequency combiner when the switch is on, a signal of a same frequency with the distorted component from the pim generation source; a bandpass filter configured to pass the distortion component of a signal returning from the pim generation source to a test port and to pass the signal generated by the reference signal source; and a measuring and computing unit configured to perform a measurement based on a signal passed by the bandpass filter when a switch is off and a signal passed by the bandpass filter when the switch is on and to compute the location of the pim generation source.