The RFC26-600-4600M from RF-Lambda is a Space Qualified Circulator with Frequency 4.45 to 4.75 GHz, Bandwidth 300 MHz, Average Power Forward 600 W, Insertion Loss 0.30 dB, Isolation 21 dB. Tags: Waveguide, Waveguide Circulator. More details for RFC26-600-4600M can be seen below.