TY - JOUR
T1 - Convergence of FDTD and Wavelet-Collocation Modeling of Curved Dielectric Interface with the Effective Dielectric Constant Technique
AU - Fujii, Masafumi
AU - Lukashevich, Dzianis
AU - Sakagami, Iwata
AU - Russer, Peter
PY - 2003/11
Y1 - 2003/11
N2 - The convergence of the effective dielectric constant (EDC) model of curved dielectric surfaces has been investigated precisely for the finite-difference time-domain (FDTD) as well as for the interpolet-collocation time-domain (ICTD) methods. The EDC is computed by solving the Laplace equation of static electric potential by a finite-difference (FD) method for each cell located on the interface of arbitrary dielectric media. The FD solution of the Laplace equation provides an accurate EDC for arbitrary curved interface with even high contrast of the dielectric constants. It has been demonstrated in this paper that the precisely chosen EDC allows both the FDTD and the wavelet-collocation methods to exhibit second-order convergence for the analysis of not only planar but also curved dielectric interfaces.
AB - The convergence of the effective dielectric constant (EDC) model of curved dielectric surfaces has been investigated precisely for the finite-difference time-domain (FDTD) as well as for the interpolet-collocation time-domain (ICTD) methods. The EDC is computed by solving the Laplace equation of static electric potential by a finite-difference (FD) method for each cell located on the interface of arbitrary dielectric media. The FD solution of the Laplace equation provides an accurate EDC for arbitrary curved interface with even high contrast of the dielectric constants. It has been demonstrated in this paper that the precisely chosen EDC allows both the FDTD and the wavelet-collocation methods to exhibit second-order convergence for the analysis of not only planar but also curved dielectric interfaces.
KW - Effective dielectric constant (EDC)
KW - Finite-difference time-domain (FDTD)
KW - Wavelet-collocation method
UR - http://www.scopus.com/inward/record.url?scp=0242443776&partnerID=8YFLogxK
U2 - 10.1109/LMWC.2003.819374
DO - 10.1109/LMWC.2003.819374
M3 - Article
AN - SCOPUS:0242443776
SN - 1531-1309
VL - 13
SP - 469
EP - 471
JO - IEEE Microwave and Wireless Components Letters
JF - IEEE Microwave and Wireless Components Letters
IS - 11
ER -