On the development of compact lumped-element LCP filters

Laura Alice Hepburn, Jiasheng Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


This paper presents a novel compact, UHF-band lumped element filter that shows good results versus other similar designs, with a 20% fractional bandwidth operating at 500MHz with a 17dB return loss. The circuit was designed using multilayer LCP, with a focus on minimising the footprint and the number of vias present, which was achieved by folding the design and implementing a block of shared ground vias, avoiding unwanted coupling in the process. Using a 4-pole tubular filter circuit model, the initial filter designed showed a good response and underwent a subsequent successful redesign that reduced the footprint by 60% and the number of vias by 37.5% without sacrificing the response of the filter.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference
Number of pages4
ISBN (Print)9782874870354
Publication statusPublished - 2014
Event2014 44th European Microwave Conference - Rome, Italy
Duration: 6 Oct 20149 Oct 2014


Conference2014 44th European Microwave Conference
Abbreviated titleEuMC 2014
OtherHeld as Part of the 17th European Microwave Week, EuMW 2014


  • bandpass filter
  • liquid crystal polymer
  • lumped element filter
  • multilayer circuit

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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