Title :
Stable non-orthogonal FDTD method
Author :
Douvalis, V. ; Hao, Y. ; Parini, C.G.
Author_Institution :
Dept. of Electron. Eng., Queen Mary Univ. of London, UK
fDate :
7/8/2004 12:00:00 AM
Abstract :
A novel approach for implementing a stable nonorthogonal finite-difference time-domain algorithm is proposed. Instead of representing a vector field with its contravariant and covariant components, this approach only makes use of the covariant components to annihilate any unstable behaviour. The new algorithm is validated by numerical experiments.
Keywords :
circular waveguides; finite difference time-domain analysis; numerical stability; resonators; waveguide theory; contravariant component; covariant component; finite difference time domain algorithm; resonator; stable nonorthogonal FDTD method; unstable property annihilation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040589
