On The Solution of a Class of Large Body Problems with Partial Circular Symmetry (Multiple Asymmetries) by Using a Hybrid-Dimensional Finite-Difference Time-Domain (FDTD) Method
Copyright © 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
The definitive version is available at http://dx.doi.org/10.1109/8.918608
NOTE: At the time of publication, the author Dean Arakaki was not yet affiliated with Cal Poly.
This paper presents an efficient method to solve a large body scattering problem, viz. a paraboloid reflector antenna system, with only partial circular symmetry. The asymmetry in the system is introduced by two factors, viz. the microstrip feed and an inhomogeneous radome. The paper presents a novel approach, based on the equivalence and reciprocity principles and the “equivalent” aperture theory, to overcome the asymmetry problem. The technique thereby enables substantial computational efficiencies by analyzing the majority of the three-dimensional (3-D) computational domain in an effective two-dimensional (2-D) simulation, with the remainder being analyzed using a 3-D algorithm.
Dean Arakaki, Wenhua Yu, and Raj Mittra. "On The Solution of a Class of Large Body Problems with Partial Circular Symmetry (Multiple Asymmetries) by Using a Hybrid-Dimensional Finite-Difference Time-Domain (FDTD) Method" IEEE Transactions On Antennas And Propagation 49.3 (2001): 354-360.
Available at: http://works.bepress.com/darakaki/10