Comparisons of approximate and exact solutions for forward scattering

Various methods for analyses of scattering are mentioned and new approximate relationships are derived. Several numerical simulations of forward scattering using approximate estimations, physical optics and exact solutions for two-dimensional scattering are presented for far fields as well as near fields. That allows not only accuracy analyses but also conclusions about scattering and total fields in the presence of objects, which are important for many applications such as communications, radars and electromagnetic compatibility.