Line-source excitation for maximum aperture efficiency with given sidelobe level

An unusual family of line-source aperture excitations are described which provide, maximum aperture efficiency for a given sidelobe level. The emphasis is on the direct description of the excitation functions. The simplicity of the new excitation provides insight into the role of certain excitation components with respect to aperture utilization and sidelobe level. The proposed excitations are evaluated and are found to be comparable with the most efficient excitations previously described.