The QMC-JFC12-7305 from Quantum Microwave is a Waveguide Circulator with Frequency 71 to 76 GHz, Bandwidth 5 GHz, Power 1.5 W, Isolation 16 to 19 dB, Insertion Loss 0.6 to 0.9 dB. Tags: Ferrite Circulator. More details for QMC-JFC12-7305 can be seen below.