Fabrication of a novel diplexer using folded open-loop ring resonators and microstrip lines

Chia Mao Chen, Shoou-Jinn Chang, Cheng Fu Yang

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A simple and novel low-loss diplexer with two folded Open-Loop Ring Resonators (OLRRs) that couple three microstrip lines is proposed. The first passband and second passband of the designed diplexer could be easily and accurately shifted to a desired frequency and construct the bandpass filters by adjusting the physical dimensions of the OLRRs. These results suggested that the proposed diplexer had the frequency-adjustable characteristics. The longer OLRR is placed between the upper and middle microstrip lines to generate a 2.4 GHz resonant frequency and the shorter OLRR is placed between the middle and lower microstrip lines to generate a 5.2 GHz resonant frequency. By adjusting the positions of the two OLRRs, the resonant frequencies can be tuned.

Original languageEnglish
Pages (from-to)864-869
Number of pages6
JournalApplied Computational Electromagnetics Society Journal
Volume29
Issue number11
Publication statusPublished - 2014 Nov 1

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Electrical and Electronic Engineering

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