The FK1013 from Cobham Microwave is a Space Qualified Circulator with Frequency 29.5 to 31.5 GHz, Average Power Forward 1 W, Average Power Reverse 1 W, Insertion Loss 0.3 dB, Isolation 20 dB. Tags: Waveguide, Waveguide Circulator. More details for FK1013 can be seen below.