Compact tunable dual-band bandpass filter with independently tunable passbands and high selectivity

Fan Zhang, Yi Wang, Yang Yu, Yang Gao, Yi Zhang, Yun Xiao Peng, Cheng Guo, Jun Xu

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This paper presents a compact varactor-tuned dual-band bandpass filter with independently tunable passbands and high selectivity. The filter consists of two varactor-loaded half-wavelength dual mode resonators, each of which features independent tunability of odd-and even-mode resonant frequencies by varying the capacitances of the corresponding loading varactor diodes. Benefiting from this feature, the filter offers two independently controllable passbands. In addition, hook-shape feed lines are utilized to create transmission zeros between the two passbands, which enhances the selectivity of the filter.

Original languageEnglish
Article number20190237
JournalIEICE Electronics Express
Volume16
Issue number11
DOIs
Publication statusPublished - 2019

Bibliographical note

Publisher Copyright:
© 2019 The Institute of Electronics, Information and Communication Engineers.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

  • Compact
  • Dual-band filter
  • High selectivity
  • Tunable

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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