Title :
Representation of an Arbitrary-Radius Wire for FDTD Calculations in the 2-D Cylindrical Coordinate System
Author :
Taniguchi, Y. ; Baba, Y. ; Nagaoka, N. ; Ametani, A.
Author_Institution :
Doshisha Univ., Kyoto
Abstract :
We have shown that a perfectly conducting wire has an equivalent radius, a 0 = 0.135 Deltar (Deltar is the lateral side length of rectangular cells used), if the tangential components of electric field along the wire axis are forced to zero in finite-difference time-domain (FDTD) calculations in the 2-D cylindrical coordinate system. Further, we have shown that the technique proposed by Noda and Yokoyama to represent a wire having an arbitrary radius in the 3-D Cartesian coordinate system can be applied successfully to representing such a wire in the 2-D cylindrical coordinate system if 0.135 Deltar is used instead of 0.230 Deltar for a 0.
Keywords :
computational electromagnetics; electromagnetic field theory; electromagnetic fields; finite difference time-domain analysis; 2-D cylindrical coordinate system; FDTD calculations; arbitrary-radius wire; finite-difference time-domain calculations; perfectly conducting wire; Conductors; Electromagnetic analysis; Electromagnetic fields; Electromagnetic transients; Finite difference methods; Magnetic fields; Maxwell equations; Permittivity; Time domain analysis; Transient analysis; Wire; 2-D cylindrical coordinate system; Electromagnetic field; finite-difference time-domain (FDTD) method; thin wire;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
DOI :
10.1109/TEMC.2008.2004466
