The RFLC601G08G18 from RF-Lambda is a RF & Microwave Circulator with Frequency 8 to 18 GHz, Average Power Forward 10 W, Insertion Loss 0.8 to 1 dB, Isolation 14 to 16 dB, Operating Temperature -20 to 70 Degree C. Tags: Coaxial Circulator. More details for RFLC601G08G18 can be seen below.