HIGH-POWER MICROWAVE PULSE MEASUREMENT USING RESISTIVE SENSORS

Resistive sensors based on the electron heating effect in semiconducto rs are used for microwave pulse-power measurement in the waveguide, Th e substitution procedure of replacing a microwave electric field by a de electric field is proposed for the calibration of the resistive sen sor in the medium-power range. The difference of readings between the calibrated resistive sensors and the former Soviet Union pulse-power s tandard was found to be less than 4%. Two calibrated sensors have been compared with the standard since 1982. A deviation in the range of +/ - 4% from the standard power meter was found during this longterm expe riment. A diaphragm-type resistive sensor has also been developed for the microwave purse measurement at high power.