The CNA-1013 from Stellant Systems is a RF & Microwave Circulator with Frequency 10.9 to 12.8 GHz, Insertion Loss 0.5 dB, Isolation 23 dB, Operating Temperature -20 to 65 Degree C. Tags: Module with Connector, Coaxial Circulator. More details for CNA-1013 can be seen below.