Background

The team covers a large variety of topics supported by publications in top-level journals or contracts with well-established companies. The most important of these topics are:

  • Numerical techniques for electromagnetics: the authors have been involved in the development of techniques for the direct and inverse problem. On the one hand, the work in the direct problem has resulted in a vast expertise in the analysis/design of antennas and scatterers (e.g., to calculate the electromagnetic field bounced by an airplane). On the other hand, the inverse problem has enabled us to calculate the properties of antennas/scatterers from the acquired field. For instance, these inverse algorithms are very valuable for antenna diagnosis and human body tomography.
  • Micro-, millimeter- and submillimeter-wave imaging: it involves an evolution of the aforementioned inverse problems. However, these approaches usually sacrifices accuracy to achieve accurate but real-time images. Our major experience relies on synthetic aperture radar (SAR) but other schemes have also been studied (Kirchoff migration, B-scan, etc.). These techniques are highly useful to inspect concealed weapons, buried objects (e.g., antipersonnel mines, etc.).
  • Cost-reduction techniques for imaging: the researchers of the project have pioneered different techniques to minimize the number of transmitters and receivers required in real-time imaging. Furthermore, the complexity of the system have been reduced by avoiding the need of measuring the field of the electromagnetic fields.
  • Setups for antenna and scattering problems: the research group owns facilities to perform spherical and planar measurements. Although these facilities were planned for antenna measurements, they have been adapted along the years to measure scattered field as required in imaging problems. Furthermore, multiple setups including monostatic, bistatic and multistatic have been successfully implemented for frequencies ranging from 1 GHz up to 330 GHz.

In addition to the above primary skills, the involved researchers have other skills, which are also useful for the project, covering antenna design, attitude/position estimation from scattered electromagnetic fields.

You can check further details in the publication list of the entire group! Should you need any further information on the papers, please let us know.

You can also find further details on the background of each member in the corresponding biography: