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NCUEIR > College of Engineering > eedept > Periodical Articles > Item 987654321/10698

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10698

Title:	Design of compact dual-band bandpass filters using λ /2 and combined λ /4 stepped-impedance resonators
Authors:	Lee, Ching-Her;Hsieh, Yi-Huan;Ho, Min-Hua
Contributors:	電子工程學系
Keywords:	Stepped-impedance resonator;Dual-band BPF;Cross-coupled configuration;0� tapped feed
Date:	2007-11
Issue Date:	2012-05-29T01:22:02Z
Publisher:	Wiley Periodicals
Abstract:	This paper presents a compact dual-band bandpass filter (BPF) that consists of a pair of L-shape half-wavelength (λ/2) stepped-impedance resonators (SIRs) and an inverted Z-shape resonator. The latter is actually a combined structure of two λ/4 SIRs along with a magnetic coupling in between and hence designed to reduce the circuit size. Cross-coupled SIR configuration and 0° tapped-feed structures are adopted to introduce attenuation poles around the passband edges for selectivity improvement. A wider −20-dB upper stopband is achieved by properly separating the third resonant frequencies of the SIRs of different types. The newly designed dual-band BPF was verified by circuit implementation, and a very good agreement between the simulated and measured results was observed
Relation:	Microwave and Optical Technology Lett., 49(11): 2703-2706
Appears in Collections:	[eedept] Periodical Articles

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