A HYBRID METHOD FOR COMPUTING THE SCATTERED FIELDS FROM COMPLEX STRUCTURES

A new hybrid method that removes typical discontinuities and singulari ties of UTD solutions is described and applied to scattering by comple x structures. The scattered fields from the structure are first comput ed on a surface S enclosing it. Then these fields are used to compute an equivalent set of electric and magnetic currents, which are then us ed to find the scattered fields from the structure. This method can ex tend the ability of available UTD computer codes to solve for the scat tered fields from structures that need special treatment and are not s olvable through direct UTD means. Good agreement is shown between this new hybrid method and moment method results as well as measurements.