Microstrip bandpass filters for ultra-wideband (UWB) wireless communications

Ching Luh Hsu*, Fu Chieh Hsu, Jen Tsai Kuo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

320 Scopus citations

Abstract

A new technique is developed for designing a composite microstrip bandpass filter (BPF) with a 3-dB fractional bandwidth of more than 100% The BPF is suitable for ultra-wideband (UWB) wireless communications. The design utilizes embedding individually designed highpass structures and lowpass filters (LPF) into each other, followed by an optimization for tuning in-band performance. The stepped-impedance LPF is employed to attenuate the upper stopband and quarter-wave short-circuited stubs are used to realize the lower stopband. Two such BPFs are fabricated and measured to demonstrate the performance.

Original languageEnglish
Title of host publication2005 IEEE MTT-S International Microwave Symposium Digest
Pages679-682
Number of pages4
DOIs
StatePublished - 2005
Externally publishedYes
Event2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States
Duration: 12 06 200517 06 2005

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2005
ISSN (Print)0149-645X

Conference

Conference2005 IEEE MTT-S International Microwave Symposium
Country/TerritoryUnited States
CityLong Beach, CA
Period12/06/0517/06/05

Keywords

  • Bandpass filters
  • Microstrip filters
  • Ultra-wideband
  • Wideband filters

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