Modern corrugated horn antenna design for extremely low sidelobe level

Abstract

The present paper deals with the design of modern corrugated horn antennas for extremely low sidelobe level with the use of the well known corrugated Gaussian Profiled Horn Antenna aperture (corrugated GPHA’s) to improve the radiation pattern and reduce the antenna size. Some design rules will be given so that an initial nice profile can be used quickly as input profile of modern optimization codes to improve the size. This initial profile can reduce the computing time of an optimization program quite a lot, so it is usually the method we use to design the final corrugated horns in our own optimization code.