Abstract
The electromagnetic modeling of practical finite periodic structures is a topic of growing interest. Due to the truncation of the infinite periodic structures, surface waves will be excited and localized near the discontinuous interfaces leading to the edge effect of finite structures. In this work, surface waves are numerically disentangled from the propagating Bloch waves contributions. Based on the universally exponential decay feature of the surface waves, a novel method is developed by connecting the solution to the large finite periodic structure with that to a relatively small one resulting in low complexity and memory consumption. The method numerically reconstructs propagating Bloch waves and surface waves according to the Bloch-Floquet theorem of periodic structures and translation invariant properties of semiinfinite periodic structures, respectively. Numerical examples are privided to validate the efficiency and accuracy of the newly developed method.
Recommended Citation
X. Y. Xiong et al., "A New Efficient Method For Analysis Of Finite Periodic Structures," Annual Review of Progress in Applied Computational Electromagnetics, pp. 562 - 565, Jan 2014.
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Edge effect; Finite periodic structures; Leaky wave antenna; Surface waves
International Standard Book Number (ISBN)
978-163266678-9
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 The Authors, All rights reserved.
Publication Date
01 Jan 2014
