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A New Design Method of Tapped Coupled-Line Filters  

우동식 (경북대학교 전자전기컴퓨터공학과)
김강욱 (경북대학교 전자전기컴퓨터공학과)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.15, no.11, 2004 , pp. 1100-1107 More about this Journal
Abstract
In this paper, a new design method fur tapped coupled-line filters has been developed. The design equations for this tapped-line filter have been obtained using a new equivalent circuit model of tapped lines. These tapped-lines replace input/output coupled lines of the conventional edge coupled-line filters, which tend to have very narrow line gaps(few mils). Therefore, tapped coupled-line filters tend to be less sensitive to filter fabrication tolerances and to be easily fabricated using milling tools. The new filter design algorithm allows very accurate filter design for frequencies up to 20 GHz and bandwidth less than 20 %.
Keywords
Tapped-Line; Coupled Line Filter; Equivalent Model;
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