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IEEE Transactions on Antennas and Propagation
Volume 46 Number 5, May 1998

Table of Contents for this issue

Complete paper in PDF format

Application of Finite-Integral Technique to Electromagnetic Scattering by Two-Dimensional Cavity-Backed Aperture in a Ground Plane

Sadasiva M. Rao, Senior Member, IEEE, Griffin K. Gothard, and Donald R. Wilton, Fellow, IEEE

Page 679.

Abstract:

In this work, we analyze the electromagnetic scattering by a cavity-backed two-dimensional (2-D) aperture in a ground plane illuminated by either a TE or TM plane wave. The analysis is based on the well-known generalized network formulation. To obtain the admittance matrix of the cavity, the cavity is modeled by triangular cylinders. Also, in order to specify inhomogeneous materials, a separate \epsilon and \mu may be assigned to each cylinder. Further, the cavity is analyzed applying the finite-integral technique (FIT), which results in spurious-free solution. Finally, numerical examples are presented to illustrate the applicability of the method.

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