The CF3946 from Centric RF is an RF Circulator that operates from 390 to 460 MHz. It can handle up to 50 W of input power, has an insertion loss of less than 0.5 dB, and provides isolation of 19 dB. The circulator is available in a stainless-steel module that measures 1.73 x 1.57 x 0.83 inches with SMA (F) connectors.