Dual-polarized Plane Wave Generator based on Reflectarray for its Application to Portable CATR Systems

Abstract

In this work, a reflectarray antenna is introduced to act as a plane wave generator (PWG) to evaluate devices in mm-Wave frequencies. The reflectarray is designed to radiate a uniform plane wave close to the aperture to reduce the size of the system. The Intersection Approach is used to design the reflectarray carrying out two phase-only synthesis for the two linear polarizations. The synthesis significantly improves the results obtained by an analytical approach obtaining a dualpolarized PWG. The result of the synthesis is used to carry out a design. The unit cell is a double set of orthogonal coplanar dipoles printed on a single-dielectric layer. The designed reflectarray shows significantly good performance in terms of the uniform plane wave obtained. Finally, the reflectarray-based PWG is used for the first time to evaluate the radiation pattern of an antenna. This compact measuring system presents quite good results evaluating the radiation pattern.