On the Synthesis of Feasible Sources for Next Generation Smart EM Environments

The synthesis of unconventional feasible sources for building future smart electromagnetic (EM) environments is addressed in this work. Towards this aim, inverse scattering theory and concepts are effectively reformulated and exploited to design field manipulating devices (FMDs) able to modify the field radiated by a primary source (i.e., the base-station antenna) and match a user-defined target field distribution. The proposed framework allows to synthesize passive, dielectric-only, and cost-effective FMDs that could be in principle used to build bio-inspired "smart objects" within the urban environment that positively contribute to the overall system quality-of-service (QoS). An illustrative numerical proof-of-concept is shown to assess the potentialities of the proposed design framework.