The HMI12-387-78.5-5.0 is a ferrite based isolator that operates from 76 GHz to 81 GHz. It has been designed for the testing of automotive integrated circuits and modules. The isolator provides an isolation of 20 dB, insertion loss of 0.7 dB and can handle up to 0.75 watts of power. It has a WR-12 waveguide interface with UG-387/U Flange.