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Mitigation of Passive Intermodulation on Planar Microstrip Circuits with Distributed Current-Driven Nonlinearities

  • Dmitry Kozlov
  • , Senad Bulja
  • , Ross Lundy
  • , Pawel Rulikowski
  • , James J. Walsh

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

This paper presents a simple technique for effective mitigation of passive intermodulation generated in planar microwave circuits fabricated on commercial printed circuit board laminates. The proposed procedure is based on covering the edges of a microstrip lines with a material of a high dielectric constant, which reduces the electric field intensity (displacement field) and, hence, nonlinear distortions due to high current density. The obtained results indicate that proper choice of electrical and geometric parameters of the coating dielectric material result in a significant mitigation of passive intermodulation, while small-signal scattering parameters of the measured circuit remain constant.

Original languageEnglish
Title of host publication2018 48th European Microwave Conference, EuMC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1029-1032
Number of pages4
ISBN (Electronic)9782874870514
DOIs
Publication statusPublished - 20 Nov 2018
Externally publishedYes
Event48th European Microwave Conference, EuMC 2018 - Madrid, Spain
Duration: 25 Sep 201827 Sep 2018

Publication series

Name2018 48th European Microwave Conference, EuMC 2018

Conference

Conference48th European Microwave Conference, EuMC 2018
Country/TerritorySpain
CityMadrid
Period25/09/1827/09/18

Keywords

  • distributed nonlinearity
  • microstrip lines
  • nonlinearity
  • passive intermodulation (PIM)
  • PIM mitigation
  • printed circuit board (PCB)

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