Passive Intermodulation in Printed Lines: Effects of Trace Dimensions and Substrate

Alexey Shitvov, Dmitry Zelenchuk, Alexander Schuchinsky, Vincent Fusco

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


A comprehensive experimental study was performed to identify and discriminate mechanisms contributing to passive intermodulation (PIM) in microstrip transmission lines. The effects of strip length and width, and substrate materials on PIM performance of printed lines were investigated in the GSM900, DCS1800 and UMTS frequency bands. The major features of the experiment design, sample preparation and test setup are discussed in detail. The measurement results have demonstrated that the PIM level cumulatively grows on the longer microstrip lines and decreases on wider strips and, thus, indicated that the distributed resistive nonlinearity of the printed traces represents the dominant mechanism of intermodulation generation in the printed lines on PTFE-based substrates. © 2009 The Institution of Engineering and Technology.
Original languageEnglish
Pages (from-to)260-268
Number of pages9
JournalIET Microwaves, Antennas and Propagation
Issue number2
Publication statusPublished - 2009

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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