Experiments with slot aerials in corner reflectors

This series of experiments measures the radiation patterns of slot aerials associated with corner reflectors. The performances of slots in the faces of the corner reflectors and of slots in cavities in front of the reflectors are described. All the slots are cavity-fed. The effects on radiation patterns of variations in the corner angle and of displacements of a slotted cavity in front of the corner are also investigated. The final evolution of a reliable beam-approach aerial system is described and the results outlined of operational tests on this system.