The RC3538XS-1.95-2.45 from ZTS Technologies is a RF & Microwave Circulator with Frequency 1.95 to 2.45 GHz, Average Power Forward 100 W, Insertion Loss 0.8 dB, Isolation 18 dB, Operating Temperature -10 to 60 Degree C. Tags: Module with Connectors, Coaxial Circulator. More details for RC3538XS-1.95-2.45 can be seen below.