Electromagnetic modeling of forward scatter radar

The forward scattering (FS) phenomenon is investigated in this work referring to a typical radar scenario where a metallic target crosses the baseline while is illuminated by a transmitting source. A straightforward electromagnetic (EM) analytical model is provided to predict the received signal both in near- and farfield conditions. The effect of different distances between target and receiving antenna are analyzed in terms of scattered and total EM fields. The results have been validated through an ad-hoc numerical implementation of a full-wave solution. Physical insight into the FS effect and restrictions on the applicability of the EM model are also discusse