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On the modeling of periodic structures using the finite-difference time-domain algorithm

✍ Scribed by Wenhua Yu; Supriyo Dey; Raj Mittra

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
247 KB
Volume
24
Category
Article
ISSN
0895-2477

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✦ Synopsis

In this paper, we present a technique for modeling periodic structures, such as spatial filters and photonic bandgap materials, using ( ) the finite-difference time-domain FDTD algorithm, for both the normal and oblique incidence cases. A wa¨eguide simulator technique is employed to model these periodic structures, and the issue of arbitrary angles of incidence as well as the problem of sweeping frequency of the illuminating wa¨e, that are difficult to handle in the FDTD wa¨eguide simulator approach, are addressed. Comparisons with results deri¨ed using other techniques are presented, and good agreement is demonstrated.

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