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Solution of TM Scattering Applying FGMM and PMM for Conductive Strip Grating Between a Grounded Double Dielectric Layers

접지된 2중 유전체층 사이의 도체띠 격자에 대해FGMM과 PMM을 적용한 TM 산란 해

  • Received : 2023.03.31
  • Accepted : 2023.05.08
  • Published : 2023.05.31
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Abstract

In this paper, TM electromagnetic scattering problems for conductive strip grating between grounded double dielectric layers are analyzed by applying the FGMM(fourier galerkin moment method) and PMM(point matching method) known as a numerical method of electromagnetic field. The boundary conditions are applied to obtain the unknown field coefficients. In order to deal with the problem of grounded double dielectric layers, numerical calculation was performed only when the thickness and relative permittivity of the dielectric layers had the same value. As the thickness of the dielectric layer and the relative permittivity increased, the overall reflected power increased, and the minimum values of the reflected power shifted in the direction of increasing the strip width. The numerical results obtained by applying the numerical methods of FGMM and PMM to the structure proposed in this paper agree very well.

본 논문에서는 접지된 2중 유전체층 사이의 도체띠 격자구조에 의한 TM(tranverse magnetic) 전자파 산란 문제를 전자파 수치해석방법으로 알려진 FGMM(fourier galerkin moment method)과 PMM(point matching method)을 적용하여 해석하였다. 경계조건들은 미지의 계수를 구하기 위하여 이용하였다. 접지된 2중 유전층의 비유전율과 두께는 동일한 값에 대해서만 취급하였으며, 유전체층의 두께와 비유전율의 값이 증가하면 전반적으로 반사전력은 증가하였으며, 반사전력의 최소값들이 스트립 폭이 증가하는 방향으로 이동하였다. 본 논문의 제안된 구조에 대해 FGMM과 PMM의 수치해석 방법을 적용한 수치결과들은 매우 잘 일치하였다.

Keywords

References

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