The VD-WR42-2021-A is a low loss waveguide isolator which operates from 20.2 GHz to 21.2 GHz. It has an insertion loss of 0.20 dB, an isolation of over 28 dB, a VSWR of 1.11:1 and a forward power handling capability of 3 W. The isolator can operate at temperatures from -40 to 80 ºC and can handle sealed pressure of up to 10 PSI. It has a chemical film finish and is housed in an aluminium package.