한국전자파학회논문지 (The Journal of Korean Institute of Electromagnetic Engineering and Science)

  • 제28권5호
  • /
  • Pages.391-399
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  • 2017
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  • 1226-3133(pISSN)
  • /
  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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전기다이폴에 의해 유기되는 전송선로의 노이즈 예측

Prediction of Noise in a Transmission Line Excited by an Electric Dipole

  • 김은하 (자동차부품연구원) ;
  • 이재현 (충남대학교 전파정보통신공학과)
  • Kim, Eunha (Korea Automotive Technology Institute) ;
  • Lee, Jae-Hyun (Department of Radio and Information Communicaions Engineering, Chungnam National University)
  • 투고 : 2016.02.27
  • 심사 : 2017.04.27
  • 발행 : 2017.05.31
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⟨ 이전 논문 다음 논문 ⟩

초록

최근 기술의 증가로 인하여 전 분야의 전자제품은 더욱 경량화, 집적화되어가고 있으며, 안테나 역시 출력의 향상으로 전송선로 단에서의 EMC(Electromagnetic Compatibility) 해석이 중요해지고 있다. 본 논문에서는 외부의 안테나로부터 전송선로에 유기되는 노이즈를 예측하기 위하여 이론적 해석을 하였으며, 이를 전자기 시뮬레이션 해석과 비교, 검증하였다. 외부 안테나의 대표적인 예로서 본 논문에서는 전기 다이폴을 상정하였고, 이로부터 발생되는 전자기파에 의해 전송선로에 유기되는 전압, 전류를 얻어내기 위하여 수정된 전송선 방정식(modified telegrapher's equations)을 이용하여 수식을 유도하였다. 유도된 이론식은 전송선로에 대하여 전기 다이폴이 임의의 지점에 위치할 수 있도록 유도하여, 전송선로에 대하여 다양한 위치에 있는 전기다이폴에 의한 노이즈를 조사하였다.

At present the general trend of modern electronics is toward smaller packages and high performance. As an antenna requires high powers, the EMC(Electromagnetic Compatibility) problems of the transmission line stage is becoming crucial day by day. In this paper, a transmission line excited by the electromagnetic fields from an infinitesimal electric dipole antenna is analyzed using the modified telegrapher's equations. The analytical equations are derived for arbitrarily positioned electric dipole with reference to a transmission line. To verify our approach, the induced voltage and current at the terminal were computed by the proposed approach and compared with those obtained by the electromagnetic simulation solver. Furthermore, the induced currents at the terminal of a transmission line excited by the electric dipoles at various positions were investigated using our approach.

키워드

참고문헌

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