The WH1502A18 / 14.5-15.5GHz from Sainty-Tech Communications Limited is a RF & Microwave Circulator with Frequency 14.5 to 15.5 GHz, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -55 to 85 Degree C. Tags: Microstrip Circulator. More details for WH1502A18 / 14.5-15.5GHz can be seen below.