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Dispersion Analysis of the Waveguide Structures by Using the Compact 2D ADI-FDTD  

어수지 (LG전자 이동단말사업본부)
천정남 (한양대학교 전자전기컴퓨터공학부)
박현식 (한양대학교 전자전기컴퓨터공학부)
김형동 (한양대학교 전자전기컴퓨터공학부)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.39, no.10, 2002 , pp. 38-45 More about this Journal
Abstract
This paper presents the new Compact 2D ADI-FDTD(Alternating-Direction Implicit Finite-Difference Time-Domain) method, where the time step is no longer restricted by the numerical stability condition. This method is an accelerating algorithm for the conventional Compact 2D FDTD method. To validate this algorithm, we have analyzed the dispersion characteristics of the hollow rectangular waveguide and the shielded microstrip line. The results of the proposed method are very well agreed with those of both the conventional analytic method and the Compact 2D FDTD method. The CPU time for analysis of this method is very much reduced compared with the conventional Compact 2D FDTD method. The proposed method is valuable as a fast algorithm in the research of dispersion characteristics of the waveguide structures.
Keywords
Compact 2D ADI-FDTD; Stability condition; Fast algorithm; Waveguide structures;
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