Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Time Domain Analysis of Dispersion Characteristics of Pulse for MMIC Design

초고주파 집적회로 설계를 위한 펄스의 시간영역 분산 특성 해석

  • Kim, Gi-Rae (Department of Electronic Engineering, Silla University)
  • Received : 2013.03.14
  • Accepted : 2013.05.03
  • Published : 2013.08.31
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Abstract

In this paper, when the pulses propagate on a uniform microstrip line, the distortion of pulse signal caused by dispersion is investigated in time domain. We analyzed dispersion characteristics according to dielectric constant and structure of transmission line, and compared propagating characteristics for square and gaussian pulse according to pulse width, pulse amplitude, and propagation velocity. The results of this paper are compatible to the trade-off determination of relative permittivity, substrate height, strip width and pulse width of signal pulse when a design of MIC and MMIC is necessary.

본 논문에서는 마이크로스트립 선로를 따라 펄스가 전송될 때 분산에 의한 펄스의 왜곡특성을 시간영역에서 해석 하였다. 전송선로의 구조, 유전율에 따른 분산특성을 비교 분석하였고, 구형펄스와 가우시안 펄스에 대해 펄스의 폭과 진폭, 그리고 전송속도에 따라 분산특성을 분석하였다. 구형 펄스의 경우 더 높은 고차 고조파 성분을 가지고 있기 때문에 이에 따른 저차 고조파 성분과의 위상 속도 차이가 선로를 따라 진행함에 따라 급격히 나타나서 분산이 심하게 나타났다. 본 연구의 결과는 MIC 또는 MMIC를 설계할 때 펄스전송에서 왜곡을 최소화하기 위해 펄스 폭, 선로의 폭, 기판의 높이 그리고 유전율을 결정하는데 유용하게 사용될 것이다.

Keywords

References

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