标题: | Miniaturized microstrip cross-coupled filters using quarter-wave or quasi-quarter-wave resonators |
作者: | Chen, CC Chen, YR Chang, CY 电信工程研究所 Institute of Communications Engineering |
关键字: | microstrip cross-coupled filter;miniaturized filter;Quarter-wave resonator;quasi-quarter-wave resonator |
公开日期: | 1-一月-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 |
起始页: | 120 |
结束页: | 131 |
显示于类别: | Articles |
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