Bi-Static Time Domain Study for Microwave Breast Imaging

In this paper a BAVA (Balanced Antipodal Vivaldi Antenna) antenna is designed and optimized to be used in direct breast contact to operate in the 3.1-10.6 GHz band. A bi-static study in the time domain is proposed to investigate the presence of the tumor. The tumor was first inserted in the fat tissues at 4 mm from the skin and then inserted deeper at 2 cm in the glandular tissues to validate the used approach. Finally a microwave breast image was constructed based on the recovered time domain signals for both cases.