National Changhua University of Education Institutional Repository : Item 987654321/10707

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NCUEIR > College of Engineering > eedept > Periodical Articles > Item 987654321/10707

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10707

Title:	Novel UWB BPF design using modified tri-section MMR
Authors:	Chen, Lian-Yu;Lee, Ching-Her;Hsu, Chung-I G.
Contributors:	電子工程學系
Keywords:	Ultrawideband bandpass filter;Multimode resonator;Stepped-impedance resonator
Date:	2008-11
Issue Date:	2012-05-29T01:22:50Z
Publisher:	Wiley Periodicals
Abstract:	A novel ultrawideband (UWB) bandpass filter (BPF) is proposed and designed using a multimode resonator (MMR) that is modified from a conventional trisection stepped-impedance resonator (TSSIR). With the first five resonant modes of the TSSIR and the coupling peaks of the input/output interdigital parallel-coupled lines properly located in the UWB passband, a seven-transmission-pole UWB BPF was realized. Open stubs were embedded in the MMR to produce a transmission zero for improving the upper-stopband rejection. A prototype of the proposed UWB BPF has been fabricated and measured for performance verification. Besides a measured return loss of higher than 11 dB between the lowest and highest transmission poles, the measured results show a minimum insertion loss of 0.3 dB and a group delay variation of less than 0.07 ns in the UWB passband
Relation:	Microwave and Optical Technology Lett., 50(11): 2904-2907
Appears in Collections:	[eedept] Periodical Articles

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