Abstract

Balanced Antipodal Vivaldi Antennas (BAVAs) have been recently proposed for ultra-wideband (UWB) microwave imaging in medical applications such as breast cancer detection. This paper presents a modified design that allows the use of wideband BAVAs in microwave tomography, where the frequency range of interest is significantly lower than the UWB range down to 1 GHz. The performance of the antenna is evaluated using full-wave electromagnetic simulations.

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