The same antennas exploiting their far-field behavior for communication purposes, can be suitably configured for realizing wireless power transfer via their near-field properties. In this paper we theoretically and numerically study the behavior of a pair of closely coupled transmitting and receiving antennas, originally designed for far-field communication. They realize a two–port reactive network to be arranged in a resonant link configuration for wireless power transfer. By appropriately selecting matching network and load values it is possible to obtain the coexistence of these two antenna operation modes. A proof of concept is discussed in this paper by designing a printed dipole antenna, combined with its matching networks, to operate at 13.56 MHz in the near-field and at 868 MHz in the far-field.

Antenna design for unified far-field communication and near-field recharging

BERRA, FRANCESCO;COSTANZO, ALESSANDRA;MASOTTI, DIEGO;MASTRI, FRANCO;
2015

Abstract

The same antennas exploiting their far-field behavior for communication purposes, can be suitably configured for realizing wireless power transfer via their near-field properties. In this paper we theoretically and numerically study the behavior of a pair of closely coupled transmitting and receiving antennas, originally designed for far-field communication. They realize a two–port reactive network to be arranged in a resonant link configuration for wireless power transfer. By appropriately selecting matching network and load values it is possible to obtain the coexistence of these two antenna operation modes. A proof of concept is discussed in this paper by designing a printed dipole antenna, combined with its matching networks, to operate at 13.56 MHz in the near-field and at 868 MHz in the far-field.
Proceedings of 9th European Conference on Antennas and Propagation (EuCAP)
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Berra, F.; Costanzo, A.; Dionigi, M.; Masotti, D.; Mastri, F.; Mongiardo, M.; Sorrentino, R.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/517357
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