Influence of complex permittivity on confocal imaging of 3D-printed breast phantom

Confocal imaging of a breast tumor phantom embedded in a 3D-printed breast phantom was demonstrated. 16 compact ultra-wideband (UWB) slot antennas were attached on the surface of the 3D-printed breast phantom and confocal imaging of 192 combinations was carried out by a radar-based breast cancer detection system. The breast adipose, glandular and tumor tissues were made of acrylonitrile butadien styrene plastic, the mixture of glycerin and water (saline) and bacon with the size of 10 mm × 10 mm × 10 mm.