The performance of a tripole adaptive array against cross-polarized jamming

The performance of an adaptive array using three mutually perpendicular dipoles (a "tripole") against a cross-polarized jamming signal is discussed. The jamming consists of two statistically independent signals transmitted on orthogonally polarized antennas. It is shown that the adaptive array is least susceptible to such jamming if the desired signal is circularly polarized. It is most susceptible if the desired signal is linearly polarized.