Investigation of tumor using an antenna scanning system

The physical basis for tumor detection with microwave imaging is the contrast in dielectric properties of normal and malignant tissues. Confocal microwave imaging involves illuminating the target with propagating electromagnetic waves using an antenna, and then synthetically focusing reflections from the target. The detection of malignant tumors is achieved by the coherent addition of returns from these strongly scattering objects. In this paper, we demonstrate the feasibility of detecting and localizing small (<;1 cm) tumors or inhomogeneous cells using a radiating patch antenna.