National Changhua University of Education Institutional Repository : Item 987654321/10290

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NCUEIR > College of Engineering > eedept > Periodical Articles > Item 987654321/10290

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10290

Title:	The Quasi-Elliptic Bandpass Filter Using Quarter-Wavelength Stepped Impedance Resonators
Authors:	Chen, Yu-Wei;Liu, Yen-Ju;Ho, Min-Hua
Contributors:	電子工程學系
Date:	2006-06
Issue Date:	2012-05-22T06:27:05Z
Publisher:	PIERS
Abstract:	A bandpass filter is designed using two end-connected quarter-wavelength stepped impedance resonators. The quarter-wavelength stepped impedance resonators are implemented by a half-wavelength stepped impedance resonator with its middle shorting to ground. Hence, the modes that the λ/4 stepped impedance resonator supports are the (1+2n)/4 which also occur on the branches of a combline. An enhanced U-shape coupling feed is adopted in the filter design to reduce the insertion losses as well as suppressing the harmonics. The proposed filter has a quasi-elliptic frequency response. An equivalent circuit model is developed and the experiments are conducted for circuit design verification.
Relation:	PIERS ONLINE, 2(6): 605-608
Appears in Collections:	[eedept] Periodical Articles

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