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Browsing by Author "Lin, LY"

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    New formulas for synthesizing microstrip bandpass filters with relatively wide bandwidths
    (2004-05-01)
    Chin, KS
    ;
    Lin, LY
    ;
    Kuo, JT
    ;
    電信工程研究所
    ;
    Institute of Communications Engineering
    New formulas are proposed for designing wideband parallel-coupled microstrip bandpass filters with improved prediction of bandwidth. When a fractional bandwidth Delta is required, a correction theta = (pi / 2) (1 +/- Delta / 2) is incorporated into the formulation for determining the dimensions of each coupled stage. Two filters with Delta = 50% are designed and fabricated to show the improvement. The measurement shows a very good agreement with the simulation.