Antenna Pattern Characterization With an Industrial Robot Assisted FMCW Radar System

Using an ultra-wideband frequency modulated continuous wave (FMCW) radar and a 7 degree of freedom robot, the antenna pattern of a highly directive dielectric lens antenna is investigated. First a procedure for the determination of the frequency dependent antenna pattern, using the intermediate frequency signal of an FMCW radar, is presented. Consequently, the robotic measurement setup is used to measure the E- and H-plane of the antenna under test. The determined radiation pattern is compared with simulation results, indicating an overall good agreement.