The DBIS2012001800A from Qotana is a RF & Microwave Isolator with Frequency 12 to 18 GHz, Average Power Forward 10 W, Average Power Reverse 1 W, Insertion Loss 0.4 to 0.5 dB, Isolation 20 to 20.5 dB. Tags: Module with Connector, Coaxial Isolator. More details for DBIS2012001800A can be seen below.