The UIYDMC118D from UIY Inc. is a RF & Microwave Circulator with Frequency 11.5 to 12.5 GHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.9 dB, Isolation 30 dB. Tags: Microstrip Circulator. More details for UIYDMC118D can be seen below.