The paper describes pulse-based ultra-wideband (UWB) microwave imaging experiments for breast cancer detection using heterogeneous breast phantoms with dielectric properties mimicking the human breast. Three homogeneous and seven heterogeneous breast phantoms are used in tumor detection experiments. The phantoms have dielectric permittivity and conductivity higher than previously reported experiments, as well as clutters to represent the glandular tissue in human breast. The experiments are conducted in time-domain with pulse generator and real-time oscilloscope.
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