Abstract：The design and correction factor evaluation of a WR19 (40~60 GHz) rectangular waveguide microcalorimeter which is based on a kind of thermistance power sensor is presented.This new kind of microcalorimeter will be developed as a 40~60 GHz microwave power standard of NIM.It can measure the effective efficiency of a wider frequency range of transfer standards than that of the previous microcalorimeter.The evaluation of correction factor is also given.
［1］Cui X H, Liu X M, Li Y, et al. Design and measurement of a WR-28 calorimeter［C］// 2010 CPEM Conference, Daejeon, 2010.
［2］Cui X H, Liu X M, Li Y, et al. Design and measurement of a WR-42 calorimeter［C］// Microwave Measurement Symposium, 74th ARFTG, Broomfield, 2009.
［3］冯新善. 高频、微波功率的计量测试［M］. 北京:中国计量出版社, 1987.
［4］Crowley T P, Cui X H. Design and evaluation of a WR-15(50 to 75 GHz) microcalorimeter［C］// 2008 CPEM Conference, Broomfield, 2008.
2012, Vol. 33 
