Design of a Switchplexer Based on a Microstrip Ring Resonator with Single-Switch Operation

  • Park, Wook-Ki (Technology Convergence Center, Incheon Technopark) ;
  • Ahn, Chi-Hyung (New Transportation Systems Research Center, Korea Railroad Research Institute) ;
  • Kim, In-Ryeol (Department of Electronic Engineering, Chosun University) ;
  • Oh, Soon-Soo (Department of Electronic Engineering, Chosun University)
  • Received : 2015.07.06
  • Accepted : 2015.11.20
  • Published : 2016.01.31


This paper proposes a reconfigurable microstrip diplexer, also known as a switchplexer, for use with single-switch operation of frequency band and output path. The proposed switchplexer is composed of a rectangular ring resonator and a switch on a shorting pin, which is inserted between the ring resonator and the ground plane. The rotated main current distributions occurring at different switch statuses provide the diplexer's different operating bands and different output ports. The performance of the simply designed switchplexer is successfully demonstrated via simulation and measurement.


Diplexer;Filter;Reconfigurable Diplexer;Switchplexer


Supported by : Chosun University


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