The resistive sensor: a device for high-power microwave pulsed measurements

In this paper we review a novel microwave power sensor, the operation of which is based on the electron-heating effect in semiconductors. The sensor has been specifically developed for the measurement of high-power microwave pulses. The sensor´s principle of operation and its related circuitry are described. The influence of lattice heating on the sensor´s performance is considered. The actual design and implementation of a waveguide-type sensor is presented, including details regarding its calibration. The application of the sensor for the measurement of microwave pulses at medium and high power levels is also presented.