A Study on Measurement Techniques of Absorbing Ability for a RAM

RAM 흡수능 측정기법 연구

  • Published : 2010.05.27

Abstract

In this paper, measurement techniques of absorbing ability of a RAM for RCS reduction were studied. As for the measurement techniques of absorbing ability, the free space method and transmission line method were established. And we made real RAM sample, measured absorbing according to each, and compared the results. After comparison, electromagnetic wave absorbing ability was measured to be somewhat superior in free space method and overall uniform pattern was observed. Therefore, by applying measurement techniques by stage and by frequency we could develop RAM in a more efficient way.

본 논문에서는 RCS 감소용 RAM의 흡수능 측정기법에 대하여 연구하였다. 먼저 측정기법 중 자유공간법과 전송선로법을 분석하고 실제 RAM 샘플을 제작하여 측정기법에 따라 측정 후 비교 분석하였다. 비교 분석결과 흡수능은 자유공간법에서 다소 우수한 특성이 보였으나 전체적인 패턴이 유사한 것을 확인하였다. 따라서 RAM 개발시 초기단계부터 최종단계까지 단계별/주파수별 제시하는 측정기법을 차등 적용한다면 보다 효과적으로 RAM을 개발 할 수 있을 것이다.

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