Application of ray tracing accelerating techniques for the analysis of antennas on complex platforms modelled by NURBS

Author

Cátedra, M.F. ; Gomez, J.M. ; De Adana, F. Saez ; González, I. ; Gutierrez, Oscar

Author_Institution

Dept. Ciencias de la Computacion, Univ. de Alcala, Madrid, Spain

fYear

2005

fDate

3-8 July 2005

Firstpage

167

Abstract

A new 3D ray-tracing technique, based on the angular Z-buffer algorithm (McNamara, D.A.. et al., "Introduction to the Uniform Geometric Theory of Diffraction", Artech House, 1990) to speedup reflection calculations, is presented. The technique can be applied, amongst others, to the analysis of propagation in urban or indoor environments, or the radiation of antennas on complex board structures. The technique is used in combination with the uniform theory of diffraction (UTD) and shows a spectacular reduction in CPU-time.

Keywords

antenna accessories; antenna theory; computational electromagnetics; electromagnetic wave reflection; geometrical theory of diffraction; radiowave propagation; ray tracing; splines (mathematics); NURBS; UTD; angular Z-buffer algorithm; antenna analysis; complex platforms; nonuniversal rational B-spline; ray tracing accelerating techniques; reflection calculations; uniform theory of diffraction; Acceleration; Algorithm design and analysis; Electromagnetic diffraction; Ray tracing; Reflection; Shadow mapping; Spline; Surface reconstruction; Surface topography; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1552611

Filename

1552611