Enhancing breast cancer imaging at millimeter waves using focusing techniques

International audienceMedical imaging using electromagnetic waves is a promising field of study, due to its non invasive nature and relatively low cost. Typically, it is pursued at frequencies in the microwave regime to provide adequate penetration depth. However, an increase of the frequency of operation is beneficial in order to improve the resolution, but it is accompanied by increased tissue losses. In this work we investigate the possibility to increase the penetration depth of systems for breast imaging at the lower bound of millimeter waves (30 GHz). The proposed technique consists in a near-field focusing of the radiated field with an enhanced penetration depth. © 2017 IEEE