Near-field communication (nfc) reader optimized for high performance nfc and wireless power transfer with small antennas

A device for near-field communication (NFC) and wireless power transfer, comprising:

• an antenna resonant circuit that includes
• an antenna for transmitting and receiving signals,
• a multi-Q antenna matching circuit for adjusting a quality factor (Q-factor) of the antenna resonant circuit, and
• an antenna driver for driving the antenna through the multi-Q antenna matching circuit;
• and
• a microcontroller (MCU) for controlling the multi-Q antenna matching circuit, the MCU being configured to control the multi-Q antenna matching circuit to switch between a high-Q mode for the wireless power transfer and a low-Q mode for the NFC.