We introduce a compact, lightweight and highly efficient multi-resonator rectenna (rectifying antenna) designed to harvest the RF energy really obtainable in humanized environments. Such sources, radiated from cell phones, radio transmitters and Wi-Fi equipments, are ubiquitously available but have very low power densities, at different frequency bands, with unknown directions of incidence and polarization. In order to harvest a significant quantity of energy it is mandatory to put a very special care in the design of each part of the receiving/storing system. For this purpose a combination of resonant antennas, each one designed for a specific application-dependent frequency band, is optimised together with the rectifying circuit and the load. This is accomplished by a rigorous design tool, based on the concurrent use of nonlinear and electromagnetic CAD methods. Multi-source non linear simulation of the harvester in realistic operating conditions predicts a DC power of a few hundred W, which represents the typical energy requirement of a sensor node
Titolo: | CAD of Multi-resonator rectenna for micro-power generation |
Autore/i: | RIZZOLI, VITTORIO; COSTANZO, ALESSANDRA; MASOTTI, DIEGO; DONZELLI, FRANCESCO; G. Bichicchi |
Autore/i Unibo: | |
Anno: | 2009 |
Titolo del libro: | Proceedings of the 39th European Microwave Conference |
Pagina iniziale: | 1684 |
Pagina finale: | 1687 |
Abstract: | We introduce a compact, lightweight and highly efficient multi-resonator rectenna (rectifying antenna) designed to harvest the RF energy really obtainable in humanized environments. Such sources, radiated from cell phones, radio transmitters and Wi-Fi equipments, are ubiquitously available but have very low power densities, at different frequency bands, with unknown directions of incidence and polarization. In order to harvest a significant quantity of energy it is mandatory to put a very special care in the design of each part of the receiving/storing system. For this purpose a combination of resonant antennas, each one designed for a specific application-dependent frequency band, is optimised together with the rectifying circuit and the load. This is accomplished by a rigorous design tool, based on the concurrent use of nonlinear and electromagnetic CAD methods. Multi-source non linear simulation of the harvester in realistic operating conditions predicts a DC power of a few hundred W, which represents the typical energy requirement of a sensor node |
Data prodotto definitivo in UGOV: | 16-feb-2010 |
Data stato definitivo: | 11-mag-2018 |
Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |