Analysis of the electromagnetic field scattered by a spherical breast tumour model

In this paper, a closed form solution is presented for the electromagnetic field scattered due to a lossy dielectric spherical tumour with arbitrary diameter, inside a lossy dielectric breast fat tissue medium. The analytical and simulation results are successfully compared to each other. Using this analytical method, we demonstrate the importance of accounting for selection of polarization and operation frequency of antennas used in a microwave imaging system for breast cancer tumour detection.