Generalized Efficiency of Waveguide Thermoelectric Power Sensor

This paper describes the determination and application of the generalized efficiency of waveguide thermoelectric power sensors in the direct comparison transfer method for the frequency range of 110 GHz to 170 GHz. Since waveguides cannot support DC signals, the generalized efficiency is required for waveguide thermoelectric sensors. The thermoelectric sensor with the generalized efficiency can be used as transfer standard to calibrate all types of power sensor in the direct comparison transfer, e.g., to establish the measurement traceability of commercial power meters for millimeter wave frequencies.