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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of Radiation Characteristics of Ka-Band Von Karman Radome Based on IPO Scheme

IPO(Iterative PO)를 이용한 Ka 대역 Von Karman 레이돔 방사 특성 해석

  • Published : 2011.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the radiation properties of a Ka-band Von Karman radome are analyzed by using an IPO(Iterative PO) scheme. Since the operating frequency is very high, and the size of the considered radome is large, a numerical method cannot be directly applied to calculate the properties of the radome such as transmission loss, radome pattern, boresight error, etc. Hence, in this paper, an IPO scheme is used, which can efficiently consider the multiple interaction inside the radome. Also, the IPO scheme is based on the PO scheme, which is efficient and fast in a numerical point of view. The proposed scheme is verified based on Ku-band measurement data, and its feasibility for applicability to a higher frequency simulation is addressed through a simulation at the Ka-band.

본 논문에서는 IPO 방법을 사용하여 Ka-band Von Karman 레이돔을 해석한다. Ka-band에서 레이돔같은 큰 물체를 해석하기 위해서는 보통의 수치 방법을 사용하기 힘들다. 그리고 PO(Physical Optics) 방법은 다중 반사(multiple reflection)를 고려할 수 없어 레이돔 해석에서 중요한 파라미터인 부엽(sidelobe level) 해석의 정확도에 한계를 갖는다. 그러므로 본 논문에서는 Nystrom 기반 PO 방법을 사용하는 IPO 방법을 사용하여 Ka-band 레이돔 해석 방법을 제안하고, 정확도 검증을 위해 Ku-band 실험 데이터와 IPO 결과를 비교한다. 또 Ka-band 시뮬레이션을 통해 높은 주파수에도 제안된 IPO 방법이 사용할 수 있음을 수치적으로 보인다.

Keywords

References

  1. D. J. Kozakoff, Analysis of Radome-Enclosed Antennas, Archech House, Norwood, 2010.
  2. W. M. Cady, Radar Scanners and Radomes, MIT Radiation Laboratory Series, New York, 1948.
  3. J. A. Shifflett, "CADDRAD: A physical optics radarmadome analysis code for arbitrary 3D geometries", IEEE Antennas Propagat. Mag., vol. 39, pp. 73-79, Dec. 1997. https://doi.org/10.1109/74.646806
  4. O. I. Sukharevsky, S. V. Kukobko, and A. Z. Sazonov, "Volume integral equation analysis of a two dimensional radome with a sharp nose", IEEE Trans. Antennas Propagt., vol. 53, no. 4, pp. 1500-1506, 2005. https://doi.org/10.1109/TAP.2005.844406
  5. M. A. A. Moneum, Z. Shen, J. L. Volakis and O. Graham, "Hybrid PO-MoM analysis of large axi-symmetric radomes", IEEE Trans. Antennas Propagt., vol. 49, no. 12, pp. 1657-1660, 2001. https://doi.org/10.1109/8.982444
  6. W. Kim, I. Koh and J. Yook, "3D isotropic dispersion (ID)-FDTD algorithm: Update equation and characteristics analysis", IEEE Trans. Antennas Propag., vol. 58, no. 4, pp. 1251-1259, Apr. 2010. https://doi.org/10.1109/TAP.2010.2041311
  7. 서승희, 조지현, "원뿔형 비구면 레이돔에 대한전자파 해석 기법 개발", 한국전자파학회논문지, 20(7), pp. 617-624, 2009년 7월.
  8. F. Obelleiro-Basteiro, J. L. Rodriguez, and R. J. Burkholder, "An iterative physical optics approach for analyzing the electromagnetic scattering by large open-ended cavities", IEEE Trans. Antennas Propag., vol. 43, no. 4, pp. 356-361, Apr. 1995. https://doi.org/10.1109/8.376032
  9. C. A. Balanis, Advanced Engineering Electromagnetics, Wiley, New York, 1989.
  10. A. Greenbaum, Iterative Methods for Solving Linear Systems (Frontiers in Applied Mathematics), Society for Industrial Mathematics, Philadelphia, 1987.
  11. A. D. Gedney, "On deriving a locally corrected nyström scheme from a quadrature sampled moment method", IEEE Trans. Antennas Propag., vol. 51, no. 9, pp. 2402-2412, Sep. 2003. https://doi.org/10.1109/TAP.2003.816305

Cited by

  1. Radiation from a Millimeter-Wave Rectangular Waveguide Slot Array Antenna Enclosed by a Von Karman Radome vol.18, pp.3, 2018, https://doi.org/10.26866/jees.2018.18.3.154