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Comparison of intersection algorithms for SBR ray tracing on NURBS

: Weinmann, F.


IEEE Antennas and Propagation Society; Institute of Electrical and Electronics Engineers -IEEE-; International Union of Radio Science -URSI-, US National Committee:
IEEE Antennas and Propagation Society International Symposium, APSURSI 2012. Vol.1 : Chicago, Illinois, USA, 8 - 14 July 2012; jointly held with the USNC-URSI National Radio Science Meeting
New York, NY: IEEE, 2012
ISBN: 978-1-4673-0462-7
ISBN: 978-1-4673-0461-0 (Print)
IEEE Antennas and Propagation Society (APS International Symposium) <2012, Chicago/Ill.>
National Radio Science Meeting <2012, Chicago/Ill.>
Fraunhofer FHR ()

Non-Uniform Rational B-Splines (NURBS) are a very efficient way of representing arbitrary curved surfaces. However, this type of surface representation is based on a complex mathematical formulation, which requires a very efficient implementation when using NURBS for accurate electromagnetic simulations. This paper studies the performance of different iterative ray-NURBS intersection algorithms in the framework of a Shooting-and-Bouncing-Rays (SBR) algorithm.