Journal of Microwave Power and Electromagnetic Energy (JMPEE)
TITLE	Programmable Sweep Radiometer System as a New Tool for Non-Invasive Thermometry [PDF]
AUTHORS	M. Miyakawa 1991 26 3 160-167
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Abstract A new microwave radiometer system consisting of a frequency sweep-type radiometer and an ultra wideband antenna has been developed. A computer-controlled radiometer system covers the input frequency range from 0.5 GHz to 8 GHz. It can be used not only as a multispectral radiometer system whose frequencies can be chosen freely, but also as a frequency sweep-type radiometer system whose frequency is continuously swept during measurement. When an antenna is attached to a forearm, the sensitivity of the radiometer system exceeds 0.09^oC when the integration time is 3 sec and IF bandwidth is 500 MHz. The new microwave radiometer system may be utilized for non-invasive thermometry of the human body. Key Words: Radiometer for medical uses, Sweep measurement, Non-invasive thermometry, Temperature distribution.