SUB-NYQUIST COMPLEX-HOLOGRAPHIC APERTURE ANTENNA CONFIGURED TO DEFINE SELECTABLE, ARBITRARY COMPLEX ELECTROMAGNETIC FIELDS

摘要

Described embodiments include an antenna, method, and an apparatus. The antenna includes a sub-Nyquist complex-holographic aperture configured to define at least two selectable, arbitrary complex radiofrequency electromagnetic fields on a surface with tangential wavenumbers up to 2π over the aperture element spacing (k_apt=2π/a).