The EfieldFD PO solver is suitable for analysis of very large problems where the electrical size of the problem is to large for MLFMM. Typical applications include
Figure 1: Surface currents of UAV computed with PO
PO is a high frequency approximation (short-wavelength approximation) that is an intermediate method between geometric optics, which ignores wave effects, and full wave methods such as MoM or MLFMM. The geometrical optics current is used over the illuminated portions of the target surface, while zero current is assumed over the shadowed portions. The current is then used in the radiation integrals to compute the scattered far field from the target. PO gives best results for electrically large bodies and is most accurate in the specular directions.
The EfieldFD standalone PO solver is mainly used to compute RCS so perfect electric conductors (PEC) can be modeled.
Available excitations in the EfieldFD PO solver are plane wave excitations
Output from the EfieldFD PO solver includes:
The EfieldFD PO solver is parallelized for both shared memory and distributed memory computers. The solvers can be run either in out-of-core mode or in in-core mode depending on available memory.