Antenna solution for wireless power transfer—near field communication enabled communication device

摘要

Various configurations and arrangements of various communication devices and antenna solutions are disclosed. Antenna solutions disclosed herein include a single inductive coupling element configured to resonate at a variety of resonant frequencies suitable for WPT and/or NFC communications. Resonant circuits can be provided for tuning the inductive coupling element to resonant at specific resonant frequency. The antenna solutions can be employed in WPT/NFC enabled communication devices capable of WPT and NFC communication.

主权项

1. An antenna module configured to facilitate wireless power transfer (WPT) and near field communication (NFC) in a WPT/NFC enabled communication device, comprising:
an inductive coupling element configured to resonate at a WPT frequency suitable for WPT communication and an NFC frequency suitable for NFC communication; a resonant circuit configured to tune the inductive coupling element to the WPT frequency or the NFC frequency, wherein when placed in a first magnetic field at the WPT frequency indicative of a WPT communication signal, the resonant circuit is configured to tune the inductive coupling element to approximately the WPT frequency such that a first current is induced in the antenna module indicative of the WPT communication signal; and wherein when placed in a second magnetic field at the NFC frequency indicative of an NFC communication signal, the resonant circuit is configured to tune the inductive coupling element to approximately the NFC frequency such that a second current is induced in the antenna module indicative of the NFC communication signal.