The crucial role of a decoupling/matching network is demonstrated for the design of a compact 868-MHz double-antenna energy harvester, driving two different rectifiers branches for the efficient powering of a wake-up radio (WUR)-enabled localization node. Two highly-coupled meandered cross-polarized monopoles, located in close proximity, are adopted for orientation-insensitive operations, thus requiring the design of a RF-decoupling and matching network before rectification. The superior performance of the two-element harvester with respect to a standard single-monopole rectenna is experimentally demonstrated in different conditions: it justifies the deployment of the presented tag for the energy autonomy of future generation RFID tags for indoor localization.
Rectenna Array with RF-Uncoupled Closely-spaced Monopoles for Autonomous Localization / Fantuzzi, Marco; Masotti, Diego; Costanzo, Alessandra. - ELETTRONICO. - (2018), pp. 8541716.765-8541716.768. (Intervento presentato al convegno 48th European Microwave Conference (EuMC) tenutosi a Madrid nel 23-28 settembre 2018) [10.23919/EuMC.2018.8541716].
Rectenna Array with RF-Uncoupled Closely-spaced Monopoles for Autonomous Localization
Fantuzzi, Marco;Masotti, Diego;Costanzo, Alessandra
2018
Abstract
The crucial role of a decoupling/matching network is demonstrated for the design of a compact 868-MHz double-antenna energy harvester, driving two different rectifiers branches for the efficient powering of a wake-up radio (WUR)-enabled localization node. Two highly-coupled meandered cross-polarized monopoles, located in close proximity, are adopted for orientation-insensitive operations, thus requiring the design of a RF-decoupling and matching network before rectification. The superior performance of the two-element harvester with respect to a standard single-monopole rectenna is experimentally demonstrated in different conditions: it justifies the deployment of the presented tag for the energy autonomy of future generation RFID tags for indoor localization.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.