Classical microwave imaging poses an inverse scattering problem where several microwave transmitters illuminates an object and scattered fields in numerous receiver location are measured. When energy in the microwave, UHF region propagates through a biological body, its phase velocity and absorption coefficient are function of the complex permittivity of the medium. This in turn is a function of tissue type and functional state of the tissue. The high value of dielectric constants of water allows a measure of tissue discrimination on the basis of water content. Therefore, measurement of...