Wide-angle scanning of linear arrays located on cones

The characteristics of an 8-element linear array located along the generatrix of a cone with a
20\deg
full cone angle is described. The array is scanned from broadside to a direction parallel to the cone axis. Radiation patterns and admittances are measured over wide scan angles. Theoretical calculations are performed for a similar array located on an infinite groundplane. The agreement between theory and measurement is very good.