Electro-optic (EO) probes provide an ultra-wideband, high-resolution, non-invasive technique for polarimetric near-field scanning of antennas and phased arrays. Unlike conventional near field scanning systems which typically involve metallic components, EO probes are all-dielectric with an extremely small footprint. As a result, EO field probes can be used very effectively for simultaneous near-field and far-field characterization of radiating apertures. In this paper, we present and discuss measurement results for different active electronically scanned antennas (AESA) at S, C and X bands with both linear and circular polarizations.