Microstrip dual-mode bandpass filter design using pie-section truncated semi-circle and quarter-circle resonators


Journal Article

© The Institution of Engineering and Technology 2015. New dual-mode microstrip bandpass filters (BPFs) using pie-section truncated semi-circle and/or quarter-circle resonators are presented. The even-mode and odd-mode frequency responses of these two resonators are investigated. Compared to the four-parameter optimisation of the conventional stub-loaded dual-mode resonator, only three parameters need to be adjusted and optimised for the proposed resonators. Based on these two novel resonators, three BPF examples are designed, fabricated and tested. In addition, the technique of source-load cross coupling to improve performance of the filters is adopted. The good agreement between simulated and measured results validates the design concept.

Full Text

Duke Authors

Cited Authors

  • Xu, K; Zhang, Y; Fan, Y; Joines, WT; Liu, QH

Published Date

  • February 19, 2015

Published In

Volume / Issue

  • 9 / 3

Start / End Page

  • 224 - 229

Electronic International Standard Serial Number (EISSN)

  • 1751-8733

International Standard Serial Number (ISSN)

  • 1751-8725

Digital Object Identifier (DOI)

  • 10.1049/iet-map.2014.0170

Citation Source

  • Scopus