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Development of a 3.5-mm Coaxial Microcalorimeter for RF and Microwave Power Standards at KRISS

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4 Author(s)
Jae-Yong Kwon ; Center for Electromagnetic Wave, Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon, Korea ; Tae-Weon Kang ; Jeong-Hwan Kim ; Jin-Seob Kang

We have developed a 3.5-mm coaxial microcalorimeter that will become a national power standard up to 26.5 GHz. Several core parts such as a thermostat, an adiabatic line, a thermopile, and reference standards are described in detail. Some measurement data are shown for a system performance check. A finite-element method simulation of the adiabatic line is shown. A model of the effect of the adiabatic line on thermopile measurement is introduced. Effective efficiency at selected frequencies is presented for the reference standards.

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:60 ,  Issue: 7 )