Title :
An FDTD method with FFT-accelerated exact absorbing boundary conditions
Author :
Sirenko, Kostyantyn ; Bagci, Hakan
Author_Institution :
Div. of Phys. Sci. & Eng., King Abdullah Univ. of Sci. & Technol. (KAUST), Thuwal, Saudi Arabia
Abstract :
An accurate and efficient finite-difference time-domain (FDTD) method for analyzing axially symmetric structures is presented. The method achieves its accuracy and efficiency using exact absorbing conditions (EACs) for terminating the computation domain and a blocked-FFT based scheme for accelerating the computation of the temporal convolutions present in non-local EACs. The method is shown to be especially useful in characterization of long-duration resonant wave interactions.
Keywords :
convolution; electromagnetic waves; fast Fourier transforms; finite difference time-domain analysis; FDTD method; FFT-accelerated; absorbing boundary conditions; axially symmetric structures; computation domain; exact absorbing conditions; finite-difference time-domain; long-duration resonant wave interactions; temporal convolutions; Acceleration; Boundary conditions; Computational modeling; Convolution; Finite difference methods; Time domain analysis; Transient analysis; FFT; exact boundary conditions; fast methods; finite difference methods;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996982
