Spatial polarization characteristic analysis of monopulse radar seeker antenna

Monopulse radar antenna is one of the most exact electronic directional techonolgies now, and it is extensively used in microwave and millimeter wave tracking, survellian, communication, measurement and astronomical system. However, in order to protect the radar antenna from environment´s influence, lots of monopulse antennas all use radome, which will induce affect on antenna´s polarization characteristic. Taking the typical parabolic reflector monopulse radar seeker antenna as an example, the influence of radome on monopulse antenna cross polarization characteristic is simulated in different cases, and the reason of cross polarization induced by the antenna radome is analyzed, which provides the important theory basis for research on cross polarization electronic attacking technology to controdict monopulse tracking.