National Changhua University of Education Institutional Repository : Item 987654321/10266

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NCUEIR > College of Engineering > eedept > Periodical Articles > Item 987654321/10266

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10266

Title:	The UMTS Diplexer Design Using the Anti-Parallel Coupled Lines Loaded with a Stepped Impedance Resonator
Authors:	Ho, Min-Hua;Lin, Wei-Chen
Contributors:	電子工程學系
Keywords:	UMTS diplexer;Antiparallel-coupled lines;Mid-passband zero implantation;spurline
Date:	2011-09
Issue Date:	2012-05-22T06:25:50Z
Publisher:	Wiley
Abstract:	We present a novel UMTS diplexer design using the filters of antiparallel-coupled lines structure loaded with a stepped impedance microstrip resonator. The diplexer is composed of two filters. And a microstrip line of quarter-wavelength is used to links each filter to the common port. The composing filters exhibit two tunable transmission zeros which are used to implement the mid-passband zero implantation for improving the isolation between the transmitting (Tx) and the receiving (Rx) ports. A pair of spurlines is used in the coupled lines of the Tx-filter to further increase the isolation. An experiment is conducted to assure the diplexer's performance and to verify the circuit design.
Relation:	Microwave and Optical Technology Lett., 53(12): 2988-2990
Appears in Collections:	[eedept] Periodical Articles

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