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

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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A Study on Measurement Techniques of EM Wave Absorbing Ability of a RAM for RF Stealth

RF 스텔스용 RAM의 전파흡수능 측정기법에 관한 연구

  • Received : 2010.05.28
  • Accepted : 2010.05.28
  • Published : 2010.06.30
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Abstract

In this paper, measurement techniques of absorbing ability for a RAM were studied for RCS Reduction needed for materializing ADD's RF stealth. As for the measurement techniques of absorbing ability, the theories of the free space method, similar to real radar system, and transmission line method, suitable for lab scale, were established. And we made real RAM samples, measured absorbing ability according to each, and compared the results. After comparison, electromagnetic(EM) 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 국방과학의 RF 스텔스 구현을 위해 필요한 RCS 감소용 RAM의 전파흡수능 측정기법에 대하여 연구하였다. 먼저 RAM의 전파흡수능에 대한 이론 정립 후 측정기법에 대하여 실제 레이더 시스템과 유사한 자유공간법과 실험실에서 용이한 전송선로법을 분석하여 실제 RAM 샘플을 제작하여 측정기법에 따라 측정후 비교 분석하였다. 비교 분석결과 전파흡수능은 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.

Keywords

References

  1. David Lynch Jr., Introduction to RF STEALTH, Scitech, 2004.
  2. Eugene F. Knott et. al., RADAR CROSS SECTION, 2nd ed., Scitech, 2004.
  3. Francisco Saez de Adanna et al., "Method Based on Physical Optics for the Computation of the Radar Cross Section Including Diffraction and Double Effects of Metallic and Absorbing Bodies Modeled With Parametric Surfaces," IEEE Trans. Aatennas Propagat., vol.52, no.12, pp.3295-3303, Dec. 2004. https://doi.org/10.1109/TAP.2004.836444
  4. Christopher L. Holloway et al., "Comparison of Electromagnetic Absorber Used in Anechoic and Semi-Anechoic Chambers for Emissions and Immunity Testing of Digital Devices," IEEE Trans. Electromag. Compat., vol.39, no.1, pp.33-47, Feb. 1997. https://doi.org/10.1109/15.554693
  5. 김동일, 전파흡수체 공학, 대영사, 2006.
  6. O. Hashimoto, Introduction to Wave Absorber, Morikita Shuppan, Tokyo, 1997.
  7. IEICE Standard, Measurement Methods for Reflectivity of Electromagnetic Absorbers in Millimeter Wave Frequency, IEICE, 2005.
  8. Carl H. Durney et al., RADIO- FREQUENCY RADIATION DOSIMETRY HANDBOOK, Forth-ed., Brooks Air Force Base, 1986.
  9. Sang-Hyun Moon et al., "Development of composite Ba ferrite EM wave absorbers for GHz frequency," J. Korea Electromag. Engin. Soc., vol.14, no.12, pp. 1329-1334, Dec. 2003.
  10. O. Hashimoto and Y. Shimizu, "A Measurement of the Complex Permittivity Tensor by a Standing-Wave Method in a Rectangular Waveguide," IEEE Trans. Electromag. Compat., vol. EMC-29, no.2, pp.141-149, May 1987. https://doi.org/10.1109/TEMC.1987.304353

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