Corrugated waveguide for monopulse feed.

Monopulse feeds which allow an independent optimization of the performance of the sum and difference modes have received much attention in the literature. This paper presents some experimental results obtained with a corrugated feed horn designed to operate at the focus of a paraboloid having <thgr><SUB0>=60degrees. The present indication is that a near-optimum performance in both the sum and difference modes can be achieved. [ABSTRACT FROM AUTHOR]