The PSA1850C-4 from Cubic Nuvotronics is a Cavity-Backed Sinuous Antenna that operates from 18 to 50 GHz. This dual circularly-polarized antenna provides a peak gain of up to 6.5 dBi and has an axial ratio of 1 dB. It has a half-power beamwidth of 65°. This 4-arm sinuous antenna measures 30.007 x 10.414 mm and has SMPM (GPPO) connectors. It is ideal for wideband direction finding, interferometry, radar warning receivers, and SIGINT/ELINT applications.
