Title :
A stable and consistent generalization of the FDTD technique to nonorthogonal unstructured grids
Author :
Cinalli, Marco ; Schiavoni, Andrea
Author_Institution :
Dept. of Electromagnetism & Bioeng., Univ. Politecnica delle Marche, Ancona
fDate :
5/1/2006 12:00:00 AM
Abstract :
A new way to extend the finite difference time domain (FDTD) technique to nonorthogonal grids is described in this paper. The method, whose theoretical foundations are based on the Finite Integration Technique and on recently extended affine theories, can be proven to be both stable and consistent. In order to show its benefits, the nonorthogonal FDTD is applied to the analysis of a cylindrical cavity and to the characterization of biconical antennas for ultrawideband applications
Keywords :
conical antennas; finite difference time-domain analysis; integration; ultra wideband antennas; FDTD technique; biconical antenna; consistent generalization; cylindrical cavity; finite difference time domain analysis; finite integration technique; nonorthogonal unstructured grid; ultrawideband application; Finite difference methods; Geometry; Integral equations; Maxwell equations; Shape; Stability; Telecommunications; Time domain analysis; Ultra wideband antennas; Ultra wideband technology; Consistency; nonorthogonal finite difference time domain (FDTD); stability; unstructured grids;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.874322
