The RFLC301G17G22 from RF-Lambda is a Space Qualified Circulator with Frequency 1.7 to 2.2 GHz, Bandwidth 500 MHz, Average Power Forward 1000 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC301G17G22 can be seen below.