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Stochastic scattering model for the application of SBR to rough surfaces

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1 Author(s)
Frank Weinmann ; Fraunhofer FHR, Neuenahrer Str. 20, D-53343 Wachtberg, Germany

A large variety of simulation tools for calculating scattered fields have been published in literature. Basically, there are two main approaches, the so-called numerically exact or full-wave solutions, e.g. using Method of Moments (MoM), and the high-frequency or asymptotic solutions, e.g. using rays for modelling propagation paths. However, most of these simulation tools are limited to perfectly conducting surfaces or homogeneous dielectric bodies with ideally smooth surfaces. The present paper studies the enhancement of a ray tracing code based on the well-known Shooting-and-Bouncing-Rays (SBR) technique for calculating scattered fields of arbitrary objects, whose surfaces are characterised by roughness parameters.

Published in:

Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP)

Date of Conference:

11-15 April 2011