The HMI12-387-83.5-5.0 is a ferrite based junction isolator that operates from 81 GHz to 86 GHz. It has been designed for the matching and protecting E-band radios, radars and testing systems. The isolator provides an isolation of 19 dB, insertion loss of 0.7 dB and can handle up to 0.5 watts of power. It has a WR-12 waveguide interface with UG-387/U Flange.