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NCUEIR > College of Engineering > eedept > Periodical Articles > Item 987654321/10713

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10713

Title:	A compact CPW-fed UWB BPF using combined microstrip SIR
Authors:	Chen, Yu-Cheng;Lee, Ching-Her;Hsu, Chung-I G.
Contributors:	電子工程學系
Keywords:	Multimode resonator;Ultra-wideband bandpass filter;Coplanar waveguide;Stepped-impedance resonator
Date:	2009-04
Issue Date:	2012-05-29T01:23:29Z
Publisher:	Wiley Periodicals
Abstract:	This article presents a multimode-resonator (MMR)-based ultra-wideband (UWB) bandpass filter (BPF) fed by modified coplanar waveguides (CPWs). The MMR employed in the UWB BPF is formed by combining two quarter-wavelength (λ/4) microstrip stepped-impedance resonators (SIRs) in a structure-shared fashion. The first two resonant frequencies of the inherent λ/4 SIRs and the fundamental one of the embedded half-wavelength (λ/2) resonator were designed and located inside the UWB passband. Experiments on a prototype UWB BPF were carried out for validating the filter design. The measured frequency responses show an insertion loss of less than 1 dB between the first and the last \|S11\| null frequencies in the UWB passband and an upper −20-dB stopband bandwidth of about 6.14 GHz.
Relation:	Microwave and Optical Technology Lett., 51(4): 918-921
Appears in Collections:	[eedept] Periodical Articles

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