In this contribution, we explore the generation and manipulation of topological singularities of vortex fields in order to shape and rotate the radiation pattern of patch antennas. We first extend at microwaves a result already obtained at optical frequencies for which, by superimposing a constant background on a vortex field, one can modify at will the position of its phase singularity. Then, we demonstrate how this phenomenon can be exploited to design a patch antenna with a desired radiation pattern with topologically robust properties.
Barbuto, M., Miri, M.-., Alu, A., Bilotti, F., Toscano, A. (2017). Exploiting topological singularities of vortex fields for shaping and rotating the radiation pattern of patch antennas. In 2017 11th International Congress on Engineered Material Platforms for Novel Wave Phenomena, Metamaterials 2017 (pp.25-27). Institute of Electrical and Electronics Engineers Inc. [10.1109/MetaMaterials.2017.8107914].
Exploiting topological singularities of vortex fields for shaping and rotating the radiation pattern of patch antennas
Barbuto M.
Writing – Original Draft Preparation
;Alu A.Membro del Collaboration Group
;Bilotti F.Supervision
;Toscano A.Supervision
2017-01-01
Abstract
In this contribution, we explore the generation and manipulation of topological singularities of vortex fields in order to shape and rotate the radiation pattern of patch antennas. We first extend at microwaves a result already obtained at optical frequencies for which, by superimposing a constant background on a vortex field, one can modify at will the position of its phase singularity. Then, we demonstrate how this phenomenon can be exploited to design a patch antenna with a desired radiation pattern with topologically robust properties.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
