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Simulation experiment of breast cancer detection has been performed using an ultrashort-pulse radar with compact vivaldi antennas. A synthetic breast phantom and metallic balls or high-k dielectric cubes are used as tumor in our experiment. Image reconstructions of the breast models using reflection data will be presented. We measure reflection data in order to reconstruct images of the breast models...
A narrow focus ultra-wideband dielectric-filled antenna has been designed for the purpose of near-field breast cancer detection without the use of coupling media. Instead of immersing the antenna in a lossy liquid coupling medium, direct matching of the substrate and antenna to the biological tissue is proposed here. The proposed feed structure was designed on low-cost printed-circuit-board (PCB)...
A planar antenna with ultra wideband directive performance is presented. It is aimed to be part of a microwave imaging system for breast cancer detection. The antenna is designed to operate efficiently across the ultra wideband frequency (3.1 GHz to 10.6 GHz). It has a very compact size with overall dimensions of 0.9 cmtimes1 cm. The antenna is assumed to be immersed in a liquid of a high dielectric...
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