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Open Complementary Split Ring Resonators (OCSRRs) and Their Application to Wideband CPW Band Pass Filters

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6 Author(s)
Velez, A. ; Dept. d''Eng. Electron. (GEMMA/CIMITEC), Univ. Autonoma de Barcelona, Barcelona ; Aznar, F. ; Bonache, J. ; Velazquez-Ahumada, M.C.
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In this letter, open complementary split ring resonators (OCSRRs) are introduced for the first time. Such resonators are the dual counterparts of the open split ring resonators (OSRRs), introduced in 2004 by some of the authors, and consist on a pair of concentric hooks etched on a metal layer in opposite orientation. It is shown in the letter that OCSRRs can be modeled by means of an LC parallel resonant tank and that this particle roughly exhibits half the resonance frequency of the complementary split ring resonator (CSRR), hence being electrically very small. The interest of these resonators is illustrated through their application to a wideband coplanar waveguide band pass filter.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:19 ,  Issue: 4 )