Small reflector antenna with low sidelobes

A prime focus low sidelobe parabolic reflector antenna with self-supported feed is designed for low sidelobe applications. The parabolic reflector diameter is between nine and twelve wavelengths. A simple design is achieved to satisfy the required first sidelobe level. The design is performed numerically using a computer code for bodies of revolutions (AKBOR2). The measured radiation patterns of 18 inch and 24 inch reflector systems at 5.75 GHz. are presented. Good agreement between computed and measured radiation patterns is obtained.