IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Dispersive contour-path algorithm for the FDTD analysis of a periodic structure at oblique incidence
Tetsuya IwamotoJun ShibayamaJunji YamauchiHisamatsu Nakano
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2023 年 20 巻 6 号 p. 20230007

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Arbitrarily-shaped dispersive media can be treated with the dispersive contour-path (DCP) FDTD method. We extend the DCP-FDTD method for the analysis of a periodic structure to the case at oblique incidence. A trapezoidal recursive convolution technique is used to incorporate dispersive media into the DCP-FDTD method. The transmission characteristics of a metallic cylinder array are evaluated and discussed. It is found that the present method gives almost the same solution as the conventional staircase FDTD method, even with a sampling width five times as large as the conventional counterpart.

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© 2023 by The Institute of Electronics, Information and Communication Engineers
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