Filtering performance of alternate polarization array based on the technology of oblique projection

The traditional PSA (Polarization Sensitive Array) is made up of orthogonal dipole mostly, doubling equipment in exchange for superior performance. But the increase of equipment limits its application in radar system. APA (Alternating Polarization Array) can simplify equipment at the same time ensure the filtering performance. In this paper, taking advantage of the excellent properties of oblique projection technology, it applied oblique projection technology to APA, realizing the simplification of the system, while retaining the phase and amplitude information of the target signal. Simulation results indicate that its filtering performance approaches that of PSA.