A band-stop RF switch using a dual-mode stepped-impedance microstrip ring resonator

Wu Seong Lee, Gi Moon Lee, Byung Chang Choi, Ha Chul Kim, Hyun Chul Choi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper presents a bandstop RF switch using a dual-mode stepped-impedance ring resonator and two PIN diodes. Sharp band-rejection characteristic is realized by direct-feeding and adjustable bandwidth is achieved using stepped-impedance transmission line between two exited ports. Two PIN diodes are mounted after quarter-wavelength transmission lines of from each feeding point to turn the switch on and off and reduce the size of the ring resonator. To analyze the practical performance of the proposed switch in accordance with the perturbation and PIN diodes, the lossy transmission line equivalent circuit and even-odd mode analysis are studied. The calculated transmission characteristic of the proposed switch shows good agreement with the measurement. The fabricated switch exhibits off-state isolation of 43.3dB within the range of 2.29-2.40 GHz and on-state insertion loss of 0.72 dB.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2010, EuMW2010
Subtitle of host publicationConnecting the World, Conference Proceedings - European Microwave Conference, EuMC 2010
Pages316-319
Number of pages4
StatePublished - 2010
Event13th European Microwave Week 2010, EuMW2010: Connecting the World - 40th European Microwave Conference, EuMC 2010 - Paris, France
Duration: 28 Sep 201030 Sep 2010

Publication series

NameEuropean Microwave Week 2010, EuMW2010: Connecting the World, Conference Proceedings - European Microwave Conference, EuMC 2010

Conference

Conference13th European Microwave Week 2010, EuMW2010: Connecting the World - 40th European Microwave Conference, EuMC 2010
Country/TerritoryFrance
CityParis
Period28/09/1030/09/10

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