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Abstract
A 3-dimensional (3D) reconstruction method based on layered-homogenous-tissue model to obtain dielectric properties of superficial tissues of human body by noninvasive measurement is presented in this paper. First a circle patch probe fed by coaxial line is optimized by using micro genetic algorithm (MGA) to measure reflection coefficient at a wide frequency range from 1 GHz to 7 GHz. Then reconstruction method based on MGA is discussed and verified by some experiments. Finally, the dielectric properties of skin, fat and muscle, as well as thickness of skin and fat, on the human back are reconstructed. The reconstructed results agree to the published data.