Channel-reconfigurable filter with integrated switch in multilayer LCP package

Shilong Qian*, Jiasheng Hong

*Corresponding author for this work

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

1 Citation (Scopus)


This paper investigates a new scheme of channel-switchable filter, which consists of 2 stages of optimum stub filters. By integrating a double pole double throw (DPDT) switch, 4 different states/channels with the same absolute bandwidth have been achieved by switching each stage between open-stub and short-stub filters. Compared to original implementation which deploys loads of PIN diodes, this scheme minimizes the loss as well as the cost of the filter. To minimize dispersion and maintain a high periodicity, stripline configuration is chosen to implement the filters. Multilayer liquid crystal polymer (LCP) technology and laser machining are used for high accuracy circuit fabrication and integration of the DPDT switch.

Original languageEnglish
Title of host publication42nd European Microwave Week 2012
Number of pages4
ISBN (Electronic)9782874870279
ISBN (Print)9781467322157
Publication statusPublished - 11 Feb 2013
Event42nd European Microwave Conference 2012 - Amsterdam, Netherlands
Duration: 29 Oct 20121 Nov 2012


Conference42nd European Microwave Conference 2012
Abbreviated titleEuMC 2012


  • bandpass filter
  • LCP
  • reconfigurable filter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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