Transverse propagating waves in perturbed periodic structures

Publication Type:
Conference Proceeding
Solid Mechanics and its Applications vol 113: IUTAM Symposium on Asymptotics, Singularities and Homogenisation in Problems of Mechanics, 2003, 113 pp. 147 - 158
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We present here an analysis of electromagnetic waves propagating through a doubly periodic array of inclusions which are not necessarily circular. A small perturbation to a circular boundary is introduced, and this can be used to derive the e ective boundary conditions for the perturbed inclusion. We examine the e ect of this perturbation on the dispersion curves for the material, and compare this with a finite element modelling of the perturbed structure.
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