FDTD subgridding with higher order derivative approximations
The finite-difference time-domain (FDTD) method provides numeric solutions to analyze electromagnetic problems. This includes modeling wave propagation through urban environments, wireless communications, radio-frequency identification (RFID), and antenna design. As the operating frequency increases, the computational domains to solve these problems have grown to an unmanageable size. However, FDTD subgridding methods solve this problem without the need for excessive large memory allocation. Subgridding allows for the problem space to be divided into fine grids around articles of interest and ...
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