Development of a waveguide microwave power sensor calibration system at NMC

In this paper, the development of a waveguide microwave power sensor calibration system is reported. This system is a physical realization of the direct comparison transfer of waveguide microwave power sensor calibration up to 110 GHz. For the developed calibration system, the measurement uncertainty is discussed and evaluated, where the major uncertainty contributor for the current system is identified. To further improve the performance of our system and reduce the cost of calibration, some necessary future work is planned.