Systems and methods for wireless communication with implantable devices

A method comprising:

• providing a wireless bioelectronic system that includes:
• an implantable device comprising an electrical circuit coupled to a magnetoelectric film, wherein the magnetoelectric film is configured to generate a backscattered magnetic field when excited by an external pulse magnetic field;
• an external transceiver, wherein:
• the external transceiver is configured to simultaneously transmit the external pulse magnetic field to the implantable device;
• the implantable device is configured to transmit response to the external transceiver using one or more modulation techniques;
• a magnetic field generator;
• and
• a resonant property modulator, wherein:
• the magnetoelectric film has a property, and
• the electrical circuit is configured to apply different electric loading conditions that change the property of the magnetoelectric film;
• generating a magnetic field with the magnetic field generator;
• producing an electrical output signal with the magnetoelectric film;
• and
• modifying the property of the magnetoelectric film with the electrical circuit.