A corrugated horn antenna using V-shape corrugations

Corrugated horns use corrugations on the
E
-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
0.3125 \lambda
to 0.625
\lambda
in contrast to the rectangular corrugations where the corresponding depth is
0.25 \lambda
to 0.5
\lambda
. The radiation patterns and impedance of two identical rectangular horns with corrugated
E
- plane walls using either V or rectangular corrugations are directly compared.