The WH1502A9 / 12-17GHz from Sainty-Tech Communications Limited is a RF & Microwave Circulator with Frequency 12 to 17 GHz, Insertion Loss 0.8 dB, Isolation 15 dB, Operating Temperature -55 to 85 Degree C. Tags: Microstrip Circulator. More details for WH1502A9 / 12-17GHz can be seen below.