A tunable dual-band branch line coupler based on composite right/left-handed transmission lines

Jinsung Park, Yongshik Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This article demonstrates a frequency-tunable dual-band branch line coupler based on composite right/left-handed transmission lines. A simple, yet effective conversion enables to design such transmission lines in a form that can be frequency tuned. A tuning function is realized with varactors. For demonstration, a dual-band branch line coupler at 0.6 and 1.2 GHz is fabricated. Tuning ranges of 51.4 and 18.0% are measured in the lower and upper band, respectively, in which/S21/S31/ < ± 0.5 dB is obtained, when maintaining S11 below -10 dB.

Original languageEnglish
Pages (from-to)1955-1958
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume52
Issue number9
DOIs
Publication statusPublished - 2010 Sep 1

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All Science Journal Classification (ASJC) codes

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

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