Subproyecto 2  Version en Español

In Subproject 2, the Electromagnetism Group of the University of Cantabria (GE-UC) and the Electromagnetism Group of the University of Murcia (GE-UM), will delve into the design and numerical and experimental characterization of metasurfaces that present intrinsic and/or extrinsic chirality, based on printed circuit technology and/or metallic substrates. On the other hand, the experience in the design of these materials will be applied to the improvement of compact bandpass or band rejection filters in guided media at microwave frequencies, and the possibility of tuning will be studied. Finally, the study and development of unconditionally stable FDTD techniques that provide novelties and improvements with respect to those already existing at present will be further studied and developed.

The specific objectives to be achieved are:

Design, fabrication and experimental characterization of new planar and 3D metasurfaces, presenting intrinsic and/or extrinsic chirality, based on printed circuit technology and/or metallic substrates, susceptible of being used in new radiating devices to control polarization types (RCP and LCP) and operating frequency bands (dual band and multiband).

2. Design and fabrication of compact (in size) bandpass or band rejection filters, in guided media with inclusions of metamaterial structures at microwave frequencies. The tunability of the filters will be studied.
3. Study of planar structures implemented with printed circuit technology in the previous Project to deepen in their characteristics and applications as reflecting metasurfaces, paying special attention to polarization control.
4. Development of unconditionally stable FDTD methods to alleviate the limitations of the FDTD method when applied to structures with fine geometrical details and/or very long time responses, which occurs in metamaterial based devices.