Estimation of higher-order modes using prony's method in the finite difference-time difference method

1995 ◽  
Vol 78 (6) ◽  
pp. 28-35
Author(s):  
Ken-Ichi Hyodo ◽  
Masahiro Sasaki ◽  
Tatsuya Kashiwa ◽  
Hiroaki Tagashira
Keyword(s):  
Finite Difference ◽  
Difference Method ◽  
Higher Order ◽  
Time Difference ◽  
Higher Order Modes ◽  
Prony's Method ◽  
Prony’S Method ◽  
Difference Time

Quantifying Sub-gridding Errors in Standard and Hybrid Higher Order 2D FDTD Simulations

2021 ◽  
Vol 35 (11) ◽  
pp. 1428-1429
Author(s):  
Madison Le ◽  
Mohammed Hadi ◽  
Atef Elsherbeni
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Contrast Ratio ◽  
Higher Order ◽  
Fdtd Simulation ◽  
Fdtd Simulations ◽  
2D Fdtd ◽  
Difference Time

Sub-gridding errors for a 2D Finite-Difference Time-Domain (FDTD) simulation are compared for both the standard FDTD and Hybrid higher order FDTD cases. Subgridding contrast ratios of 1:3, 1:9, 1:15, and 1:27 are considered and analyzed. A correlation is seen between the increase of contrast ratio with the increase of sub-gridding errors for both standard and hybrid cases. However, a trend of errors reduction when using hybrid formulations over standard formulations is apparent for each contrast ratio.

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