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2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278)
We proposed the newl y etched DGS(Defected Ground Structure) with a spiral shape in metallic ground plane and the equivalent circuit modeling applied to a spiral DGS for the microstrip line. The proposed spiral DGS can provide steep rejection characteristics with the one and only spiral. The equivalent circuit for the spiral DGS is derived by means of three-dimensional field analysis methods. To represent spurious resonance, the equivalent circuit of a spiral DGS is consisted of an inductor anddoi:10.1109/mwsym.2002.1012290 fatcat:n6etcyiqjjhwrdked4n3b4rlh4