Synthesis of spatial filters with Chebyshev characteristics

A spatial filtering technique using layered dielectrics for the reduction of antenna grating lobes or sidelobes is introduced and developed. The filters are used as a radome at the array face, and can be synthesized to have Chebyshev behavior in the spatial domain. Data are given for the design of two, three, and four layer filters with various spatial passband ranges and ripple levels.