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Compact UWB Bandpass Filter With Dual Notched Bands Based on SCRLH Resonator

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4 Author(s)
Feng Wei ; Nat. Key Lab. of Sci. & Technol. on Antennas & Microwaves, Xidian Univ., Xi''an, China ; Qiu Yi Wu ; Xiao Wei Shi ; Li Chen

This letter presents a novel ultra-wideband (UWB) band-pass filter (BPF) with dual sharply rejected notch-bands based on a simplified composite right/left-handed (SCRLH) resonator. The basic UWB BPF is comprised of four folded shunt quarter-wavelength short-circuited stubs separated by connecting lines with length of λg0/4 and λg0/2, respectively. The SCRLH resonator is studied and employed to introduce the dual notched bands. Good insertion/return losses are achieved as demonstrated in both simulation and experiment.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:21 ,  Issue: 1 )