The PSA1850 from Cubic Nuvotronics is a Cavity-Backed Sinuous Antenna that operates from 18 to 50 GHz. This dual linear/circularly polarized antenna provides a peak gain of 4.5 dBi and has an axial ratio of 2 dB. It has a half-power beamwidth of 65°. This 4-arm antenna measures 30.007 x 10.414 mm and has SMPM connectors. It is ideal for wideband direction finding, radar warning receivers, SIGINT/ELINT, and interferometry applications.
