標題: Miniaturized microstrip cross-coupled filters using quarter-wave or quasi-quarter-wave resonators
作者: Chen, CC
Chen, YR
Chang, CY
電信工程研究所
Institute of Communications Engineering
關鍵字: microstrip cross-coupled filter;miniaturized filter;Quarter-wave resonator;quasi-quarter-wave resonator
公開日期: 1-Jan-2003
摘要: Miniaturized microstrip filters using quarter-wave or quasi-quarter-wave resonators with cross-coupling are presented. The quarter-wavelength resonators enable very compact positively or negatively cross-coupled filters to be realized. The combination of quarter-wave and quasi-quarter-wave resonators facilitates the cross-coupling with a proper coupling phase. A new explanation for the coupling phase between the main-coupling and cross-coupling paths is proposed. Different filters that use the proposed resonators are realized and may have either quasi-elliptical or flat group-delay responses. Measurement results correlate well with theoretical predictions.
URI: http://dx.doi.org/10.1109/TMTT.2002.806924
http://hdl.handle.net/11536/28178
ISSN: 0018-9480
DOI: 10.1109/TMTT.2002.806924
期刊: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
Volume: 51
Issue: 1
起始頁: 120
結束頁: 131
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