The IC 11,20 from TKI-Ferrit is a RF & Microwave Isolator with Frequency 10.7 to 11.7 GHz, Average Power Forward 2 W, Insertion Loss 0.5 dB, Isolation 18 dB, Operating Temperature -30 to 70 Degree C. Tags: Module with Connectors, Coaxial Isolator. More details for IC 11,20 can be seen below.