Microwave Radiometry for Internal Body Temperature Measurements

Professor Zoya Popovic of the University of Colorado Boulder presented during the Vanderbilt Seminar Series.

This second talk presents a receiver project for near-field internal temperature measurements of the human body. In this approach, the total blackbody power from a tissue stack is received by a 1.4-GHz probe placed on the skin. Temperature retrieval for sub-surface tissue layers is performed using near-field weighting functions, obtained by full-wave simulations with known tissue complex electrical parameters. Measurements are presented using a calibrated Dicke radiometer at 1.4GHz for various phantom tissues. It is shown that temperature can be tracked within a fraction of a degree for a phantom muscle tissue layer under phantom fat and skin layers.

The companion talk with this presentation can be found at High-Frequency Analog Circuits for Communication, Sensing and Medical Applications