A corrugated horn antenna using V-shape corrugations

Corrugated horns use corrugations on the -plane walls that are operating in the cutoff condition. In this paper, attention is focussed on replacing the rectangular shaped corrugation with a V-shaped corrugation. The properties of the V corrugations are obtained using an integral equation solution; the results of the computational studies indicate that for operation of the V corrugations in the forbidden zone the depth of the corrugations lie between to 0.625 in contrast to the rectangular corrugations where the corresponding depth is to 0.5 . The radiation patterns and impedance of two identical rectangular horns with corrugated - plane walls using either V or rectangular corrugations are directly compared.