Cassegrain reflector antenna based on printed elements reflect arrays

Design and numerical results have been demonstrated for the focusing twist-reflector as main part of Cassegrain reflector antenna based on printed reflective type antenna arrays. If the dual polarization properties are used to provide a polarization twisting operation, low profile, low loss, and potentially, low cost mm-wave antennas can be realized. In report some efforts will been described to do a full wave analyze of these reflectarrays; this ongoing effort probably will allow to optimize these antennas and to further reduce their depth.