The RFLC601G08G18 from RF-Lambda is a Space Qualified Circulator with Frequency 8 to 18 GHz, Bandwidth 10000 MHz, Average Power Forward 10 W, Insertion Loss 1 to 1.2 dB, Isolation 14 to 15 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC601G08G18 can be seen below.