Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1996.07c
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- Pages.1744-1746
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- 1996
The Analysis of Lossy Dielectric using Surface Impedance Boundary Condition
표면 임피던스 경계조건을 이용한 손실유전체 해석
- Kim, Byung-Chan (Dept. of Elec. kyungpook Nat'l Univ) ;
- Kim, Che-Young (Dept. of Elec. kyungpook Nat'l Univ)
- Published : 1996.07.22
Abstract
Surface impedance boundary condition(SIBC) concepts are introduced into the finite-difference time-domain(FDTD) method. Lossy conductors are replaced by surface impedance boundary computations reducing the soluton space and producing significant computational savings. Specifically, a surface impedance boundary condition is developed to reduce a lossy dielectric half-space. Since Maxwell's eqations are solved directly, the reflected and transmitted pulse amplitude demonstrate how the reflection and transmision coefficient determine reflected wave amplitude. In this paper, two implementations of reflection coefficient are presented. One implementation is a standard FDTD technique and the other is a FDTD using surface impedence boundary condition(FDTD-SIBC) that are applicabIe over a very large frequency bandwidth. Particulary, an efficient way to transform the time domain results to frequency domain is presented. Thus, frequency domain results are presented in one dimension and are compared with exact results.
Keywords