Synthesis of Shaped Fields through Composite Vortices

In this contribution, we discuss the shaping of radiated/reflected electromagnetic fields through the synthesis of composite vortices. The proposed approach is based on controlling the phase and amplitude distribution of each constituent vortex, allowing the creation of composite vortex structures that embody the desired field shape. In particular, we show that composite vortex theory provides a pathway for engineering complex wavefronts with applications in antenna systems and Reconfigurable Intelligent Surfaces (RISs) for next-generation wireless communications.