Primary surveillance radar of RSP-10M system

This paper describes the modernization of the RSP-10 radar systems, produced in Russia, which are still operated by several users. We describe the modernization of this system, which includes a new radar design, comprising an antenna unit, an air-conditioned container with control and power electronics, and an original primary surveillance radar antenna unit. The paper is concentrated on the new very challenging design of the three-band antenna unit combining primary surveillance radar for L-band (1250–1350) MHz, secondary surveillance radar of ICAO (1030, 1090) MHz, and UVD 740MHz for transportable system. Due to the limited extent of the paper, mainly the L-band antenna design is described.