Evaluation of edge-diffracted fields including equivalent currents for the caustic regions

摘要: The fields diffracted by a body made up of finite axially symmetric cone frustums are obtained using the concepts geometrical theory diffraction. backscattered field for plane-wave incidence on such target is with particular emphasis those regions that usually avoided, namely, caustic region and its immediate vicinity. method makes use equivalent electric magnetic current sources which incorporated in This solution it readily general computer program, rather than requiring new program be written each shape. Several results, as cone, cylinder conically capped cylinder, given. In addition, applied to antenna problems. An example reported consists radiation stub over circular ground plane. present yields quite good agreement experimental results Lopez, whereas original given Lopez error much 10 dB.