Composite right-/left-handed coplanar waveguides loaded with split ring resonators and their application to high-pass filters

J. Selga, M. Gil, F. Aznar, J. Bonache, F. Martín

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)

Abstract

In this study, it is demonstrated that coplanar waveguides periodically loaded with split ring resonators (SRRs) and shunt connected elements can be applied to the synthesis of composite right-/left-handed transmission lines with very good high-pass filter characteristics. By balancing the line and forcing the characteristic impedance around the transition frequency to be in the vicinity of 50 Ω, a broad transmission band with low insertion losses is obtained. Owing to the presence of the transmission zero to the left of the left-handed band, severe cut-off is also obtained. A prototype high-pass filter device has been designed, fabricated and characterised to illustrate the possibilities of the approach. © 2010 The Institution of Engineering and Technology.
Original languageEnglish
Article numberIMAPCH000004000007000822000001
Pages (from-to)822-827
JournalIET Microwaves, Antennas and Propagation
Volume4
Issue number7
DOIs
Publication statusPublished - 1 Jul 2010

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