First, the standard formulation of the FDFD
method is presented in order to calculate a wave matrix A.
For an I x J computational space with M = I * J total grid locations, FDFD
determines [H.sup.i.sub.z] at each location by solving M simultaneous equations through the following relationship:
8:20 HYBRID FDFD
AND MOM TECHNIQUES IN CONJUNCTION WITH THE ITERATIVE MULTIREGION ALGORITHM FOR THE SOLUTION OF LARGE ELECTROMAGNETIC PROBLEMS
The recent advancements in highly accurate 2D FDFD
algorithms enables us to simulate even larger and more complex 2-D problems.
In this work, we present a new technique based on the finite difference frequency domain (FDFD
) method and an iterative procedure between the sub-domains to calculate the scattering from multiple two dimensional objects.
The same idea has been used in the FDFD
method , however only for 2-D problems.
For comparison purposes, the measurement setup has been simulated using the FDFD
However, in the case of objects with irregular shape we utilize finite difference-frequency domain (FDFD
) technique [28-30] which will be described in the next section.
This is done by determining impedance representation of an artificial cylinder enclosing inner dielectric/ferrite rod with the use of FDFD
The analysis of the single post enclosed by artificial effective cylinder was performed with the use of FDFD
As mentioned in Subsection 2.5, the compression error drops (in the full range of spatial frequencies suitable for the FDFD
mesh), when the number of Legendre polynomials reaches L/3.
Synthetic Data Generation Using Finite Differences in the Frequency Domain (FDFD