Antenna array de-embedding and reciprocity constraint

The multistatic response matrix, obtained typically in the microwave imaging experiments, not only reflects the properties of the specific target, but also depends on both the geometry of the Tx/Rx arrays and the radiation patterns of the antenna units. An effective antenna de-embedding algorithm is proposed, which incorporates the reciprocity constraint. The latter is shown to essentially improve the performance of target recovery from undersampled and noisy data.