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NCUEIR > College of Engineering > eedept > Periodical Articles > Item 987654321/10695

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10695

Title:	Design of compact microstrip dual-band bandpass filters with λ/4 stepped-impedance resonators
Authors:	Jhuang, He-Kai;Lee, Ching-Her;Hsu, Chung-I G.
Contributors:	電子工程學系
Keywords:	Dual-band BPF;Quarter-wavelength resonator;Stepped impedance resonator (SIR)
Date:	2007-06
Issue Date:	2012-05-29T01:21:57Z
Publisher:	Wiley
Abstract:	This article presents a compact microstrip bandpass filter (BPF) design for the 2.45 and 5.25 GHz wireless local-area network (WLAN) applications. U-shaped quarter-wavelength stepped-impedance resonators (λ/4 SIRs), for which the circuit size is small and the second resonant frequency can be tuned over a wide range, are adopted in the BPF design. It is shown that the first spurious passbands of the resultant filters are farther away from their second passbands than are those of the corresponding filters using half-wavelength SIRs. Experiments on a second-order and a fourth-order BPF are conducted for validating the filter performance. Good agreement between the measured and the simulated results are observed.
Relation:	Microwave and Optical Technology Lett., 49(1): 164-168
Appears in Collections:	[eedept] Periodical Articles

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