Title :
Envelope ADI–FDTD Method and Its Application in Three-Dimensional Nonuniform Meshes
Author :
Sun, Shu-Hai ; Choi, Charles T M
Author_Institution :
Dept. of Electr. Eng., I-Shou Univ., Kaohsiung
fDate :
4/1/2007 12:00:00 AM
Abstract :
The envelope alternating-direction-implicit finite difference time domain (ADI-FDTD) method in 3-D nonuniform meshes was proposed and studied. The phase velocity error for the envelope ADI-FDTD and ADI-FDTD methods in uniform and nonuniform meshes and different temporal increments were studied. A cavity problem was studied using the envelope ADI-FDTD and ADI-FDTD methods in graded meshes and the conventional FDTD method in a uniform mesh. The simulation results show that the envelope ADI-FDTD performs better than the ADI-FDTD in numerical accuracy
Keywords :
electromagnetic wave propagation; finite difference time-domain analysis; 3D nonuniform meshes; Courant-Friedrich-Levy stability condition; cavity problem; envelope ADI-FDTD method; envelope alternating-direction-implicit finite difference time domain method; graded meshes; phase velocity error; Differential equations; Electromagnetic modeling; Finite difference methods; Frequency; Helium; Impedance; Maxwell equations; Pulse modulation; Stability; Sun; Courant–Friedrich–Levy (CFL) stability condition; envelope alternating-direction-implicit finite difference time domain (ADI–FDTD) method; phase velocity;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.892937
