Microwave time reversal mirror for breast tumor detection

Time reversal focusing is based on the reciprocity property of the wave solution. The time reversed fields back-propagate to focus back at the source. The transmitting and receiving antenna array utilized for time reversal are collectively termed as the time reversal mirror (TRM). This paper deals with the design of a microwave time reversal mirror for detection of breast tumors. Time reversal antennas are designed and used in a pulsed time domain system to obtain the scattered fields from targets. Time reversal of the processed fields can be back-propagated in a FDTD simulation model to obtain potential tumor locations.