Overview
The present invention relates to the device and method to detect breast cancer at an early stage using microwave imaging. The device comprises a simple miniature ultra wide band (UWB) printed metamaterial based antenna array which transmits and receives microwave signals. The device simulates the electromagnetic field distribution, the absorbed microwave energy density and the thermal acoustic field in the breast model by using modified Finite-Difference Time-Domain (FDTD) method. The method comprises two microwave based imaging process which gives better resolution and detects cancer at an early stage. The first process is confocal microwave imaging (CMI) which detects scattered microwave signal. The second process is microwave-induced thermo-acoustic imaging (TAI) which detects induced acoustic signal arising from microwave energy absorption and thermal expansion.