Title :
Automatic microcalorimeter system for broadband power measurement in 75 GHz-110 GHz range
Author :
Okano, Yoshinobu ; Inoue, Takeumi
Author_Institution :
Electrotech. Lab., Minist. of Int. Trade & Ind., Ibaraki, Japan
fDate :
4/1/2001 12:00:00 AM
Abstract :
A system, which automatically measures effective efficiencies of a bolometer mount in the frequency range of 75 GHz to 110 GHz (W-band), has been developed. It consists of a dry mono-load microcalorimeter and a broadband signal source. An automatic measuring algorithm is employed to reduce the measuring time. Measurements of the effective efficiency can be carried out in the full band at 1 GHz intervals. Using this standard bolometer mount, calibration factors of a device under test can also be measured over the full frequency range. By using a phase shifter, the uncertainty from source impedance mismatch is reduced
Keywords :
calibration; computerised instrumentation; microwave measurement; power measurement; 1 GHz intervals; 75 GHz to 110 GHz; 75 to 110 GHz; W-band; automatic measuring algorithm; automatic microcalorimeter; bolometer mount; broadband power measurement; broadband signal source; effective efficiency; mono-load microcalorimeter; phase shifter; source impedance mismatch; standard bolometer mount; Bolometers; Calibration; Frequency measurement; Measurement standards; Millimeter wave measurements; Millimeter wave technology; Power measurement; Radio frequency; Testing; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
