Field strength prediction in and around an acute-angled corner of man-made structures

The analytical results reported in this paper refer to the evaluation of the field strength in and around an acute-angled dielectric structure, which is modeled by a penetrable wedge. The proposed approach is in the UTD framework, so that the field level is obtained by adding the GO field and the diffraction contribution. This last is determined by considering a Physical Optics approximation for the equivalent electric and magnetic surface currents involved in the radiation integrals used to represent the fields scattered in the inner region of the wedge and the surrounding space. Uniform asymptotic evaluations of such integrals allow one to obtain closed form expressions for the diffracted field, thus resulting easy to handle and compute.