Compact microstrip bandpass filter with wide stopband

Kewen Hsu, Li Yen Wang, Wen Hua Tu

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

Abstract

A compact microstrip bandpass filter using a meandering uniform impedance resonator and a meandering stepped-impedance resonator is proposed. The two resonators have the same fundamental resonant frequency and different higher order resonant frequencies for a good stopband rejection. Furthermore, input and output enhanced couplings not only reduce the insertion loss but also improve the stopband rejection. For a rejection better than 20 dB, the proposed filter does not show any spurious passbands till 8.54 f0, where f 0 is the fundamental frequency.

Original languageEnglish
Title of host publicationProceedings of 2008 Asia Pacific Microwave Conference, APMC 2008
DOIs
StatePublished - 2008
Event2008 Asia Pacific Microwave Conference, APMC 2008 - Hong Kong, China
Duration: 16 Dec 200820 Dec 2008

Publication series

NameProceedings of 2008 Asia Pacific Microwave Conference, APMC 2008

Conference

Conference2008 Asia Pacific Microwave Conference, APMC 2008
Country/TerritoryChina
CityHong Kong
Period16/12/0820/12/08

Keywords

  • Microstrip filter
  • Stepped-impedance resonator

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