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Novel balanced dual-band bandpass filter using coupled stepped-impedance resonators

  • Jin Shi
  • , Quan Xue

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

A novel balanced dual-band bandpass filter, using coupled stepped-impedance resonators (SIRs), is proposed in this letter. The differential- and common-mode equivalent half circuits are given. By properly designing the resonators, associated with the filter composed of eight SIRs, dual-band differential-mode bandpass response can be obtained. To improve the common-mode suppression level, two open stubs with different lengths are added to the connection point of two resonators. A prototype balanced filter operating at 2.4 and 5 GHz has been realized to validate the proposed concept and theory. © 2006 IEEE.
Original languageEnglish
Article number5342454
Pages (from-to)19-21
JournalIEEE Microwave and Wireless Components Letters
Volume20
Issue number1
DOIs
Publication statusPublished - Jan 2010

Research Keywords

  • Balanced
  • Bandpass filter
  • Coupled stepped-impedance resonator
  • Dual-band
  • Open-stub

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