Design of Miniaturized Wilkinson Power Divider Using Substrate Integrated Artificial Dielectric

기판적층형 가유전체를 이용한 소형화된 윌킨슨 전력분배기 설계

  • Koo, Ja-Kyung (Department of Electrical and Communication Engineering, Soonchunhyang University) ;
  • Lim, Jong-Sik (Department of Electrical and Communication Engineering, Soonchunhyang University) ;
  • Ahn, Dal (Department of Electrical and Communication Engineering, Soonchunhyang University)
  • 구자경 (순천향대학교 전기통신공학과) ;
  • 임종식 (순천향대학교 전기통신공학과) ;
  • 안달 (순천향대학교 전기통신공학과)
  • Published : 2009.07.31


This paper describes a size-reduced Wilkinson power divider using substrate integrated artificial dielectric(SIAD). SIAD transmission lines have increased effective refractive index, so the line width and length are reduced from those of standard transmission lines. Therefore the "size-reduction effect" is achieved if SIAD lines are applied to high frequency circuits. An efficient simulation method is proposed for SIAD lines which have an enormous number of via-holes. A 2GHz Wilkinson power divider is designed and measured using SIAD transmission line as an example of application. The size of the fabricated divider is reduced by 32% due to the increased effective refractive index of SIAD, while the performances are maintained similarly.


Artificial dielectric;SIAD;Effective refractive index;Wilkinson power divider


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