TITLE:
Very Compact Bandstop Filters Based on Miniaturized Complementary Metamaterial Resonators
AUTHORS:
Hicham Lalj, Hafid Griguer, M’hamed Drissi
KEYWORDS:
Metamaterials; Bandstop Filter; Complementary Split Ring Resonators (CSRRs)
JOURNAL NAME:
Wireless Engineering and Technology,
Vol.4 No.2,
April
16,
2013
ABSTRACT: In this paper, a design of very compact microstrip bandstop filters based on complementary split ring resonators (CSRRs) is proposed. Two techniques of metamaterial miniaturization are used to optimize the physical and electrical size of the CSRR. The bandstop filter is produced by an array of miniaturized loaded CSRRs etched on the center line of a microstrip. The size of the proposed filter, is as small as 0.58 cm2, and its electrical length is very small with only 0.08 λ0), compared to a conventional bandstop filter, a miniaturization of a factor 5 while the bandstop performance is maintained. A very good agreement obtained between the measurement and the simulation results.