The WH1502AS4-1 / 15.5-17.9GHz from Sainty-Tech Communications Limited is a RF & Microwave Circulator with Frequency 15.5 to 17.9 GHz, Average Power Reverse 10 W(Load), Insertion Loss 0.65 to 1.1 dB, Isolation 18 to 30 dB, Operating Temperature -55 to 85 Degree C. Tags: Microstrip Circulator. More details for WH1502AS4-1 / 15.5-17.9GHz can be seen below.