Novel miniature slow-wave resonator filter using multilayer LCP circuit technology

Zhou Zhou, Jiasheng Hong, Petronilo Martin Iglesias

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

2 Citations (Scopus)
56 Downloads (Pure)


This paper presents a novel microwave bandpass filter using microstrip slow-wave open-loop resonators and multilayer liquid crystal polymer (LCP) technologies. The new filter has not only very compact size due to the slow-wave effect, but also exhibits a ultra-wider upper stopband resulting from the dispersion property. A five-pole microstrip filter of this type, i.e., a bandpass filter centered at fc=1.18 GHz with -3dB fractional bandwidth of 17%, has been designed and fabricated. No spurious response, which are at least 30-dB rejection, occurs for the frequency up to 10GHz. Moreover, the fabricated filter also has the compact size of 0.102λg × 0.081λg and the light weight less than one gram by using multilayer LCP circuit technology. Good agreement can be observed between the simulation and measurement.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2016
Subtitle of host publication"Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016
Number of pages4
ISBN (Electronic)9782874870439
Publication statusPublished - 19 Jan 2017
Event46th European Microwave Conference 2016 - London, United Kingdom
Duration: 4 Oct 20166 Oct 2016


Conference46th European Microwave Conference 2016
Abbreviated titleEuMC 2016
Country/TerritoryUnited Kingdom


  • Bandpass filter
  • Microstrip filter
  • Slow-wave open-loop resonators
  • Ultra-wide stopband

ASJC Scopus subject areas

  • Radiation
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation


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