Investigation of microstrip pseudo-interdigital bandpass filters using a full-wave electromagnetic simulator

Jia-Sheng Hong, Michael J. Lancaster

Research output: Contribution to journalArticle

Abstract

We present recent results of an investigation into the microstrip pseudo-interdigital bandpass filters using a full-wave electromagnetic (EM) simulator. Coupling characteristics of the pseudo-interdigital resonators are modeled and compared with the conventional coupled hairpin resonators. It has been shown that the pseudo-interdigital resonators not only allow local cross-coupling, but also allow a wider range of couplings to be realized within a compact structure. A pseudo-interdigital bandpass filter composed of pairs of the proposed pseudo-interdigital resonators was designed to have a 25% fraction bandwidth at 2.0 GHz. Convergence issues of the simulations of the filter are addressed. The filter was fabricated and tested. The measured results are presented in comparison with the simulated ones.

Original languageEnglish
Pages (from-to)231-240
Number of pages10
JournalInternational Journal of Microwave and Millimeter-Wave Computer-Aided Engineering
Volume7
Issue number3
DOIs
Publication statusPublished - May 1997

ASJC Scopus subject areas

  • Engineering(all)

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