The ACC-20020 from Atlantic Microwave is a RF & Microwave Circulator with Frequency 950 MHz to 1.45 GHz, Average Power Forward 20 W, Insertion Loss 0.5 dB, Isolation 18 dB, Operating Temperature -30 to 65 Degree C. Tags: Coaxial Circulator. More details for ACC-20020 can be seen below.