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전자기적 시뮬레이션을 활용한 마이크로스트립 불연속 소자의 등가회로 추출
박정호(Jeongho Park),문형준(Hyungzun Mun),이길영(Gil-Young Lee),한상민(Sang-Min Han),임종식(Jongsik Lim),안달(Dal Ahn) 한국정보기술학회 2023 한국정보기술학회논문지 Vol.21 No.3
In this paper, extracted equivalent circuits of microstrip Bend and Tee discontinuity elements, which are widely used in design of microwave circuits, are proposed. Instead of extremely difficult conventional electromagnetic equations or numerical analysis methods, the electromagnetically(EM) simulated S-parameters are utilized in order for circuit designers to obtain equivalent circuits relatively easily. De-embedding the port-connected feeding lines from the EM simulated S-parameters, the pure discontinuity sections remain. Now, one can apply simple Z-parameter analysis method based on network theories. The calculated S-parameters of the obtained equivalent circuits are similar to those obtained from EM simulation. Sample circuits of Bend and Tee discontinuity elements are fabricated and measured. Three S-parameters produced from the EM simulation, equivalent circuit and measurement are similar, and so the validity of the proposed extraction method are proved.