The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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A Study on TE Scattering by a Conductive Strip Grating Over Two Dielectric Layers

2개 유전체층 위의 완전도체띠 격자구조에 의한 TE 산란에 관한 연구

  • 윤의중 (가천대학교 의용생체공학과)
  • Received : 2016.01.13
  • Accepted : 2016.04.08
  • Published : 2016.04.30
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Abstract

In this paper, the solutions of TE(transverse electric) scattering problems by a conductive strip grating over two dielectric layers are analyzed by applying the PMM(point matching method) known as a numerical method of electromagnetic field. The boundary conditions are applied to obtain the unknown field coefficients, the scattered electromagnetic fields are expanded in a series of Floquet mode functions, and the conductive boundary condition apply to analysis of conducting strip. The most normalized reflected and transmitted powers having a sharp variations are scattered in direction of the other angles except incident angle. The numerical results for the normalized reflected and transmitted powers are analyzed by according as the width and spacing of conductive strip, incident angles, and the relative permittivity and thickness of the two dielectric layers. To confirm the validity of this paper, the numerical results of presented structure are shown in good agreement compared to those of the existing papers.

본 논문에서는 2개 유전체층 위의 완전도체띠 격자구조에 의한 TE(transverse electric)산란 문제를 전자파 수치해석 방법으로 알려진 PMM(point matching method)를 이용하여 해석하였다. 경계조건들은 미지의 계수를 구하기 위하여 이용하였고, 산란 전자계는 Floquet 모드 함수의 급수로 전개하였으며, 도체띠의 해석을 위해 완전도체 경계조건을 적용하였다. 급변하는 대부분의 반사 및 투과전력은 입사각 이외의 다른 방향으로 산란된다. 완전도체띠의 폭과 주기, 입사각, 2개 유전층의 비유전율과 두께에 대한 정규화된 반사 및 투과전력을 계산하였다. 본 논문의 타당성을 검증하기 위하여 제안한 구조의 수치결과들은 기존의 수치해석 결과들과 비교하여 매우 잘 일치하였다.

Keywords

References

  1. M. Ando and K. Takei, "Reflection and Transmission Coefficient of a Thin Strip Grating for Antenna Application," IEEE Transactions on Antennas and Propagation, Vol.AP-35, No.4, pp.367-371, Mar. 1987. DOI: http://dx.doi.org/10.1109/TAP.1987.1144112
  2. J. H. Richmond, "On the Edge Mode in the Theory of TM Scattering by a Strip or Strip Grating," IEEE Transactions on Antennas and Propagation, Vol. AP-28, pp. 883-887, Sept. 1980. DOI: http://dx.doi.org/10.1109/TAP.1980.1142427
  3. R. C. Hall and R. Mittra, "Scattering from a Periodic Array of Resistive Strips," IEEE Transactions on Antennas and Propagation, Vol. AP-33, pp. 1009-1011, Sept. 1985. DOI: http://dx.doi.org/10.1109/TAP.1985.1143706
  4. H. A. Kalhor, "Electromagnetic Scattering by a Dielectric Slab Loaded with a Periodic Array of Srips Over a Grounded Plane," IEEE Transactions on Antennas and Propagation, Vol. AP-36, No. 1, pp. 147-151, Jan. 1988. DOI: http://dx.doi.org/10.1109/8.1088
  5. M. N. Kim and G. S. Chae, "Analysis of Scattering of Electromagnetic Wave in Dielectric Periodic Media," Journal of the Korea Academia-Industrial cooperation Society(JKAIS), Vol. 5, No. 5, pp. 385-388, 2004.
  6. K. C. Ho, "Design of Frequency-Selective Reflector for Large Reflecting Antennas using a Periodic Dielectric Layer," The Journal of The Institute of Internet, Broadcasting and Communication(JIIBC), Vol. 10, No. 1, pp. 33-38, 2010.
  7. Y. S. Choi and S. I. Yang, "Analysis of the Electromagnetic Scattering of Resistive Strip Grating with Uniform Resistivity on a Grounded Dielectric Layer. - H-Polarization case," Journal of Korean Institute of Communications and Information Sciences(JKIEES), Vol. 31, No. 3A, pp. 321-327, Mar. 2006.
  8. U. J. Yoon, "Solution of TE Scattering by a Perfectly Conducting Strip Grating Over the Grounded Two Dielectric Layers Applying Fourier-Galerkin Moment Method," Journal of Korea Navigation Institute(JKNI), Vol. 16, No. 4, pp. 635-640, Aug. 2012. DOI: http://dx.doi.org/10.12673.jkoni.2012.16.4.635
  9. U. J. Yoon, "A study on TE Scattering by a Perfectly Conductive Strip Grating Over a Dielectric Layer," Journal of the Korea Academia-Industrial cooperation Society(JKAIS), Vol. 16, No. 6, pp. 4158-4163, 2015. DOI: http://dx.doi.org/10.5762/KAIS.2015.16.6.4158
  10. U. J. Yoon, "TE Scattering by a Conductive Strip Grating Over the Two Dielectric Layers," IIBC 2015 Conference, Vol. 13, No. 1, pp. 25-26, Nov. 2015.