论文信息 - A novel ray-optical approach to model wave propagation in curved tunnels

A novel ray-optical approach to model wave propagation in curved tunnels

In this paper, a novel ray optical approach is presented to model the electromagnetic wave propagation in curved tunnels with rectangular or arched cross-sections. The modelling is performed by a stochastic ray launching technique (Monte-Carlo method), based on geometrical optics. Due to the curved surfaces, a so-called ray density normalisation is introduced in order to predict the field strength precisely. The model is verified theoretically with a corrugated circular waveguide and by various measurements at 120 GHz in scaled tunnel models.

Thomas Zwick | Werner Wiesbeck | M. Dottling | D. Didascalou

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