Abstract
Computer-generated holograms can be used for shaping millimeter-wave beams. The radio holograms used are either amplitude or phase holograms. An amplitude hologram has been proven to be a feasible alternative as a focusing element in a compact antenna test range (CATR) in the mm-wavelength regime. Holograms in other mm- and submm-applications are also studied - especially for the creation of nondiffracting Bessel radio beams.
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