100GHz帯ボロメータマウントの実効能率測定用カロリメータ

抄録

In the precise measurement of RF (Radio Frequency) power, a calorimeter system is often used.
Here a calorimeter system was designed, composed and experimented to determine the effective efficiency of bolometer mounts in the 100GHz frequency band.
This system is made up of thermo-electric detecting and cooling elements, an auxiliary heater, a new circular bolometer mount and other supporting components. A circular waveguide is used in the system as an RF power guide line to reduce a measurement error due to waveguide loss.
As the result of the error estimation, the measurement accuracy of ±0.49% is obtained.