Electromagnetic polarization and adaptive arrays

Adaptive arrays with cross-polarized elements can adapt not only to the angle of arrival of signals, but also to their polarizations. An investigation is conducted of the performance of a simple polarization sensitive adaptive array, taking into account a 'tripole' antenna consisting of three mutually perpendicular dipoles centered at the same location. Attention is given to a few cases representing typical performance for an arbitrary desired signal arriving from an arbitrary direction. A study of the obtained relations shows that the considered antenna system, which responds only to polarization, has a remarkable ability to protect a desired signal from interference.