Reconfigurable dual-stopband filters with reduced number of couplings between a transmission line and resonators

Kangho Lee, Tae Hak Lee, Chang Soo Ahn, Young Sik Kim, Ju Seop Lee

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

This letter proposes a new design method for a bandstop filter with two stopbands. Contrary to a conventional method, the presented method allows for achieving two stopbands without increasing the number of the couplings between resonators and the transmission line connecting the input and output ports. In addition, a filter designed using the presented method can not only have different center frequencies but also have different bandwidths by adjusting the resonant frequencies of the resonators. For verification of the proposed approach a dual-stopband filter using four tunable substrate-integrated waveguide resonators has been designed and measured.

Original languageEnglish
Article number7005502
Pages (from-to)106-108
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume25
Issue number2
DOIs
Publication statusPublished - 2015 Feb 1

Keywords

  • Dual-stopband filter
  • reconfigurable filter
  • substrate-integrated resonator

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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