Method for High Frequency Modeling of Transformers Using the S-Parameter

S-Parameter를 이용한 변압기의 고주파 모델링 기법

  • Jung, Hyeonjong (School of Electronics and Computer Engineering, Chonnam National University)) ;
  • Yoon, Seok (School of Electronics and Computer Engineering, Chonnam National University)) ;
  • Kim, Yuseon (LG Innotek) ;
  • Bae, Seok (LG Innotek) ;
  • Lim, Yeongseog (School of Electronics and Computer Engineering, Chonnam National University))
  • 정현종 (전남대학교 전자컴퓨터공학부) ;
  • 윤석 (전남대학교 전자컴퓨터공학부) ;
  • 김유선 (LG 이노텍) ;
  • 배석 (LG 이노텍) ;
  • 임영석 (전남대학교 전자컴퓨터공학부)
  • Received : 2018.06.15
  • Accepted : 2018.07.25
  • Published : 2018.09.30


In this paper, we propose a method for high-frequency modeling of transformers using the S-parameter. The open and short circuits of the primary and secondary sides were configured, and the reflection coefficient in each circuit was measured using a vector network analyzer. The equivalent circuit elements were extracted from the measured results to model the high-frequency equivalent circuit, and the validity of the method was verified by comparing the measured S-parameters in a 2-port network with the simulation results.


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