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

Author

Didascalou, D. ; Döttling, M. ; Zwick, T. ; Wiesbeck, W.

Author_Institution

Inst. fur Hochstfrequenztech. und Elektron., Karlsruhe Univ., Germany

Volume

4

fYear

1999

fDate

1999

Firstpage

2313

Abstract

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

Keywords

Monte Carlo methods; circular waveguides; millimetre wave propagation; prediction theory; ray tracing; stochastic processes; 120 GHz; Monte-Carlo method; arched cross-sections; corrugated circular waveguide; curved tunnels; electromagnetic wave propagation; field strength prediction; geometrical optics; ray density normalisation; ray-optical approach; rectangular cross-sections; scaled tunnel models; stochastic ray launching technique; wave propagation model; Corrugated surfaces; Electromagnetic modeling; Electromagnetic propagation; Electromagnetic waveguides; Geometrical optics; Optical propagation; Optical surface waves; Optical waveguides; Solid modeling; Stochastic processes;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.797351

Filename

797351