The RC3538XS-0.95-1.45 from ZTS Technologies is a RF & Microwave Circulator with Frequency 950 MHz to 1.45 GHz, Average Power Forward 100 W, Insertion Loss 0.6 dB, Isolation 16 dB, Operating Temperature -10 to 60 Degree C. Tags: Module with Connectors, Coaxial Circulator. More details for RC3538XS-0.95-1.45 can be seen below.