The SMC-3035 from Sierra Microwave Technology is a RF & Microwave Circulator with Frequency 30 to 35 GHz, Average Power Reverse 2 to 150 W, Insertion Loss 0.8 dB, Isolation 16 dB, Operating Temperature -54 to 85 Degree C. Tags: Coaxial Circulator. More details for SMC-3035 can be seen below.