Ongoing development of microwave breast imaging system components

We present ongoing work at the University of Michigan toward the goal of developing a microwave inverse scattering system for breast cancer imaging. The algorithm is built around the Born Iterative Method with a modified cost function allowing inclusion of a priori information. The calibration is based on a new formulation for S-parameter measurements. The liquid matching medium is an oil-water emulsion with high dielectric constant and moderate loss. Last, we designed a wide-band, linear-phase antenna for both frequency and time-domain applications. Finally, we present numeric studies of a CW microwave breast cancer therapy system.