A UHF energy harvesting unit, also comprising UWB communication function, is integrated in a low-profile, compact, unique device. The optimized collocation of two couples of dual linearly-polarized dipoles provides all-polarization receiving capability and a quasi-isotropic radiation, momentous features for RF energy harvesting applications. Activation distance of a commercial ultra-low power management unit is enhanced with respect to a corresponding single-rectenna case. The EM-based non-linear simulation of the entire system has shown its ability to rectify RF power incident from any direction, with activation distances always higher than 14.7 meters for any direction of arrival and up to 26 meters in the best-case condition. Im-plementation of the presented RF harvester outperforms the cor-responding single-dipole harvester realization in a real indoor scenario
Quasi-Isotropic RF Energy Harvester for Autonomous Long Distance IoT Operations / Fantuzzi, Marco; DEL PRETE, Massimo; Masotti, Diego; Costanzo, Alessandra. - ELETTRONICO. - (2017), pp. 1345-1348. (Intervento presentato al convegno 2017 IEEE MTT-S International Microwave Symposium tenutosi a Honolulu nel 4-9 June 2017) [10.1109/MWSYM.2017.8058861].
Quasi-Isotropic RF Energy Harvester for Autonomous Long Distance IoT Operations
FANTUZZI, MARCO;DEL PRETE, MASSIMO;MASOTTI, DIEGO;COSTANZO, ALESSANDRA
2017
Abstract
A UHF energy harvesting unit, also comprising UWB communication function, is integrated in a low-profile, compact, unique device. The optimized collocation of two couples of dual linearly-polarized dipoles provides all-polarization receiving capability and a quasi-isotropic radiation, momentous features for RF energy harvesting applications. Activation distance of a commercial ultra-low power management unit is enhanced with respect to a corresponding single-rectenna case. The EM-based non-linear simulation of the entire system has shown its ability to rectify RF power incident from any direction, with activation distances always higher than 14.7 meters for any direction of arrival and up to 26 meters in the best-case condition. Im-plementation of the presented RF harvester outperforms the cor-responding single-dipole harvester realization in a real indoor scenarioI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
