The ACI-20280 from Atlantic Microwave is a RF & Microwave Isolator with Frequency 15 to 18 GHz, Average Power Forward 20 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -30 to 65 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for ACI-20280 can be seen below.