Dual-band differential filter using broadband common-mode rejection artificial transmission line

Armando Fernández-Prieto, Jesus Martel-Villagran, Francisco Medina, Francisco Mesa, Shilong Qian, Jia-Sheng Hong, Jordi Naqui, Ferran Martín

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

A new balanced dual-band bandpass filter with strong common-mode rejection is presented in this paper. Common-mode rejection is provided by a section of a periodic microstrip differential line that behaves as a low-pass filter under common-mode operation. In contrast, the differential line exhibits very good all-pass behavior under differential mode operation. This structure is combined with a differential dual-band bandpass filter based on embedded resonators. Simulations and experiments confirm that the combined structure has good common-mode rejection within the passbands of the dual-band differential filter.

Original languageEnglish
Pages (from-to)779-797
Number of pages19
JournalProgress in Electromagnetics Research
Volume139
DOIs
Publication statusPublished - 2013

Keywords

  • STEPPED-IMPEDANCE RESONATORS
  • PASSIVE DEVICE TECHNOLOGY
  • RING RESONATORS
  • COUPLED-LINE
  • SUPPRESSION
  • DESIGN
  • MICROSTRIP
  • PLANE

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Radiation
  • Electrical and Electronic Engineering

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