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http://dx.doi.org/10.4218/etrij.14.0213.0468

Quad-Band Bandpass Filter Using Quad-Mode Stub-loaded Resonators  

Liu, Haiwen (College of Information Engineering, East China Jiaotong University)
Wang, Xiaomei (College of Information Engineering, East China Jiaotong University)
Wang, Yan (College of Information Engineering, East China Jiaotong University)
Li, Shen (College of Information Engineering, East China Jiaotong University)
Zhao, Yulong (College of Information Engineering, East China Jiaotong University)
Guan, Xuehui (College of Information Engineering, East China Jiaotong University)
Publication Information
ETRI Journal / v.36, no.4, 2014 , pp. 690-693 More about this Journal
Abstract
Compact multi-band bandpass filters using quad-mode stub-loaded resonators are proposed in this letter. Firstly, a novel approach about the mode-splitting characteristics of the quadruple-mode resonator is investigated, which can provide dual-band behavior. Secondly, a quad-band filter is proposed and designed by cascading two quadruple-mode resonators; the upper one operates at 1.8/2.4 GHz (GSM- and WiMax-band) and the lower one at 1.57/2.1 GHz (GPS- and WCDMA-band). Finally, the proposed filters have been fabricated. Respectable agreement between simulation and measurement verifies the validity of this design methodology.
Keywords
Quad-band; bandpass filter; BPF; quad-mode; stub-loaded resonators;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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