Microwave imaging of buried object under the distorted Born approximation

In this contribution, the role of the directivity properties of the antennas in inverse scattering of buried objects is considered. The discussion is carried out in a two dimensional half-space geometry and in the framework of the distorted Born approximation. The multiview/multistatic measurement configuration is considered in both single frequency and multifrequency cases. A particular attention is devoted to the problem of a proper choice of the frequency step of data which is found to be related to the extension of both the observation and the investigation domain.