Ambient backscatter tranceivers, apparatuses, systems, and methods for communicating using backscatter of ambient rf signals

An ambient backscatter transceiver comprising:

• an antenna configured to receive a backscattered ambient radio frequency (RF) signal, the backscattered ambient RF signal encoded with first data via backscatter modulation of an ambient RF signal at a first frequency, the ambient RF signal modulated to provide second data at a second frequency;
• a receiver coupled to the antenna and configured to demodulate the backscattered ambient RF signal to generate output bits;
• and
• a microcontroller coupled to the receiver and configured to decode the output bits to retrieve data that is transmitted via the backscattered ambient RF signal.

A method, comprising:

• receiving a backscattered ambient radio frequency (RF) signal at an antenna, the backscattered ambient RF signal encoded with first data via backscatter modulation of an ambient RF signal at a first frequency, the ambient RF signal modulated to provide second data at a second frequency;
• demodulating the backscattered ambient RF signal to generate output bits;
• and
• decoding the output bits at a microcontroller to retrieve the first data.