TD optimal sampling interpolation over a plane from NF data collected through a nonconventional plane-rectangular scanning

摘要

This work concerns the development of an optimal sampling interpolation algorithm in the time domain, which allows a very efficient reconstruction of the transient field over a plane in the near field region from a minimum number of data acquired via a nonconventional plane-rectangular scanning. This result is obtained by properly exploiting the nonredundant sampling representations of electromagnetic field and modelling an ultra wide band antenna with a double bowl, i.e., a surface formed by two circular bowls, with the same aperture diameter, but eventually different lateral bends. Some numerical examples assessing the effectiveness of the interpolation scheme are reported.