Title :
Optimization method of higher order (2,4) FDTD method for low dispersion error
Author :
Il-Young Oh ; Yongjun Hong ; Jong-Gwan Yook
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
In this paper, optimization method of two-dimensional higher-order (2,4) (H(2,4)) finite-difference time-domain method is developed to achieve isotropic dispersion for the lossless material case. Two variables are used. One makes isotropic dispersion and the other reduces numerical dispersion error near the operating frequency. Computation quantity and algorithm complexity of the proposed scheme are equal to those of H(2,4) scheme. And the proposed method is verified by calculating electrically large problem.
Keywords :
electromagnetic field theory; finite difference time-domain analysis; optimisation; H(2,4) scheme; algorithm complexity; electrically large problem; electromagnetic field; higher order (2,4) FDTD method; isotropic dispersion; low dispersion error; numerical dispersion error reduction; optimization method; two-dimensional higher-order finite-difference time-domain method; Coplanar waveguides; Dispersion; Equations; Indexes; Mathematical model; Time-domain analysis; FDTD; finite-difference time-domain; higher-order FDTD; low dispersion error; optimization;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
