The ACC-20180 from Atlantic Microwave is a RF & Microwave Circulator with Frequency 7.9 to 8.4 GHz, Average Power Forward 5 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -30 to 65 Degree C. Tags: Coaxial Circulator. More details for ACC-20180 can be seen below.