A Semiautomated Six Port for Measuring Millimeter-Wave Power and Complex Reflection Coefficient

A six-port system has been developed and applied to the precision measurement of power and complex reflection coefficient in WR-15 (50-75 GHz) waveguide. The system is automated except for frequency and switching control for the signal source. This system provides a timesaving factor of at least five as compared to a tuned reflectometer with little, if any, degradation in accuracy.