Title :
Characteristics of Evanescent Waves in the Nonstandard FDTD Method
Author :
Taguchi, Kenji ; Ohtani, Tadao ; Kashiwa, Tatsuya ; Kanai, Yasushi
Author_Institution :
Kitami Inst. of Technol.
Abstract :
This paper investigates the characteristics of evanescent waves in the nonstandard finite difference time domain (NS-FDTD) method and derives the dispersion equation for two-dimensional space. The validity of the dispersion equation is confirmed by comparison with results of numerical simulations. It is shown that the NS-FDTD method has highly accurate characteristics not only for propagating waves, but also for evanescent waves compared with the standard FDTD method
Keywords :
finite difference time-domain analysis; light propagation; optical dispersion; FDTD method; dispersion equation; evanescent waves; nonstandard finite difference time domain method; numerical simulations; two-dimensional space; wave propagation; Difference equations; Finite difference methods; Frequency; Microwave propagation; Microwave theory and techniques; Numerical simulation; Time domain analysis;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1632992
