Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Effects on Impedance Mismatch by Dk Variation with Operating Frequency

동작 주파수에 따른 Dk의 변화가 임피던스 부정합에 미치는 영향

  • Received : 2019.12.28
  • Accepted : 2019.12.30
  • Published : 2019.12.31
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Abstract

Accurate material information is very important in PCB (Printed Circuit Board) design. In an integrated mast of a battleship, heat reduction is essential for stealth functionality. So heat dissipation from internal control equipments should be reduced as much as possible. Control equipments mostly consist of PCBs, but it often suffers from impedance mismatching due to imprecise Dk (Dielectric Constant), which significantly increases heat dissipation. In this paper, measurement methods of Dk is investigated. Also, effects on impedance mismatch by Dk variation with operating frequency is investigated.

PCB (Printed Circuit Board)를 설계할 때 정확한 재료 정보는 매우 중요하다. 전투함의 통합 마스트 (Integrated Mast)에서는 스텔스 기능을 위해 열 저감이 필수적이며 이를 위해서는 내부의 제어 장치에서 발생하는 열을 최대한 줄여야 한다. 제어 장치는 대부분 PCB로 이루어져 있으나 PCB의 유전상수 (Dk, Dielectric Constant)가 정확하게 알려져 있지 않아 임피던스 부정합이 발생하며 이는 열 발생을 매우 증가시킨다. 본 논문에서는 Dk의 측정 방법에 대해 살펴보고 동작 주파수에 따른 Dk 값의 변화가 임피던스 부정합에 미치는 영향을 살펴본다.

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References

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