The CS-0.750-M01 from MECA is an RF Circulator that operates from 0.7 to 0.8 GHz. It can handle an average input power of up to 250 W and peak input power of 500 W. The circulator has an insertion loss of less than 0.5 dB and provides an isolation of more than 17 dB. It is available in an IP67-compliant enclosure that measures 1.25 x 1.25 x 0.73 inches and has passivated SMA-female connectors. It is matched to 50 ohms at the input and output.