Miniaturized radio-frequency transceiver in micro medical implant for dual-functional wireless power transfer and data communication

A method, comprising:

• receiving an RF signal with a tapped coil antenna having a first section and a second section to produce a received electrical signal;
• processing the received electrical signal to produce electrical power for operating an implant;
• and
• selectively connecting and disconnecting the second section of the tapped coil antenna based on uplink data to establish an oscillating current in the second section and interrupt the established current at a timepoint when the oscillating current is proximate a maximum amplitude to produce a corresponding pulsed magnetic field.

A communication and power transfer system for an implant, comprising:

• an antenna comprising a first section and a second section coupled in series;
• a switch coupled to a capacitor and operable to establish a current in the second section and interrupt the established current at a timepoint when an oscillating current is proximate a maximum amplitude to produce a pulsed magnetic field with the first section and the second section of the antenna;
• and
• a controller coupled to close and open the switch to couple and decouple a capacitor to produce the pulsed magnetic field.