2-2 Power Meter Calibration 2-2-1 Power Meter Calibration 1 (1 mW, 50 ohm)

摘要

NICT performs calibration services for power meters with coaxial sensors in the frequency range from too kHz to 50 GHz, and for those with waveguide sensors from 50 GHz up to 170 GHz. In order to ensure the accuracy, the simultaneous comparison and substitution method is adopted as the principle of calibration. The calibration system has the expanded uncertainty of 0.66 % (coverage factor k=2) at 100 MHz. In this report, we describe the calibration methods, systems, and uncertainties in the frequency range 100 kHz to 110 GHz.