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A novel design of dual-band bandstop waveguide filter using split ring resonators

S. Lj. STEFANOVSKI1,* , M. M. POTREBIĆ2, D. V. TOŠIĆ2

Affiliation

  1. Ph.D. student, School of Electrical Engineering, University of Belgrade, P.O. Box 35-54, 11120 Belgrade, Serbia; Telekom Srbija, Bulevar umetnosti 16, 11070 Belgrade, Serbia
  2. School of Electrical Engineering, University of Belgrade, P.O. Box 35-54, 11120 Belgrade, Serbia

Abstract

A novel bandstop waveguide filter, using split ring resonators, is proposed. Split ring resonators are implemented as printed-circuit inserts in a form of reduced dielectric plates, providing better performance in terms of return loss beyond the stop band, compared with the structure where dielectric plates across the entire transverse cross-section are applied. The filter response is analyzed depending on the various parameters of the resonators. These resonators are used for the design of third-order bandstop waveguide filter for single resonant frequency. Also, a novel design of multi-band bandstop waveguide filter is developed and dual-band bandstop waveguide filter of the third order, using split ring resonators, is presented as an example..

Keywords

Bandstop waveguide filter, Dual-band bandstop waveguide filter, Multi-band filter, Split ring resonators.

Submitted at: July 21, 2013
Accepted at: March 13, 2014

Citation

S. Lj. STEFANOVSKI, M. M. POTREBIĆ, D. V. TOŠIĆ, A novel design of dual-band bandstop waveguide filter using split ring resonators, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 3-4, pp. 486-493 (2014)