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Coplanar waveguide stop-band filters implemented by means of open split ring resonators (OSRRs)

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5 Author(s)
Velez, A. ; Dept. D''Eng. Electron., Univ. Autonoma de Barcelona, Barcelona, Spain ; Aznar, F. ; Duran-Sindreu, M. ; Bonache, J.
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This paper is focused on the design of coplanar waveguide (CPW) stop-band filters implemented by means of shunt connected open split ring resonators (OSRRs). The filters consist on a cascade of transmission line sections, acting as impedance inverters, alternating with OSRRs. Two illustrative examples are provided in the paper: a Chebyshev stop-band filter centered at 3.4 GHz (40% fractional bandwidth), and a Butterworth stop-band filter centered at 6 GHz (50% fractional bandwidth). These illustrative examples point out that OSRRs can be used in shunt connection in CPW technology for the design of stop-band filters with frequency responses following standard approximations.

Published in:

Microwave Conference, 2009. APMC 2009. Asia Pacific

Date of Conference:

7-10 Dec. 2009