A novel ultra wideband bandpass filter using broadside coupled structures on multilayer organic liquid crystal polymer substrate

Z.-C. Hao, J.-S. Hong, S. K. Alotaibi

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

9 Citations (Scopus)

Abstract

This paper proposes a novel ultra wideband (UWB) bandpass filter using multilayer quasi-lumped structure on organic liquid crystal polymer (LCP) substrate. In this study, broadside coupled square patches and high impedance microstrip lines are adopted as quasi-lumped elements for realizing proposed filter. A 7-pole ultra wideband bandpass prototype is designed based on lump-element bandpass filter and verified by full-wave simulation. The designed BPF is fabricated using multilayer organic liquid crystal polymer (LCP) process and measured using vector network analyzer. Good agreement between simulated and measured responses is observed. The measurement results show that the fabricated filter has a fractional bandwidth of 118.75% and low insertion loss of 0.25 dB at centre frequency 6.4 GHz. The measured filter has wide stopband and excellent rejection level higher than 31.7 dB from 11.5 GHz to 17.20 GHz.
Original languageEnglish
Title of host publication38th European Microwave Conference 2008
PublisherIEEE
Pages998-1001
Number of pages4
ISBN (Print)9782874870064
DOIs
Publication statusPublished - 19 Jan 2009
Event38th European Microwave Conference 2008 - Amsterdam, Netherlands
Duration: 27 Oct 200831 Oct 2008

Conference

Conference38th European Microwave Conference 2008
Abbreviated titleEuMC 2008
CountryNetherlands
CityAmsterdam
Period27/10/0831/10/08

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