How to implement radio control powered by parasitic interference?

Question

RFID

Hello!
There was a need to implement a device prototype with the following parameters and functions:
1) The device must be powered by the EMF induced in the antenna circuit. Similar to powering passive RFID chips.
2) The device must contain a radio channel block through which it receives control commands.
3) Must contain the simplest microcontroller (the command system and architecture are not important). The microcontroller will receive at the input a data sequence from the radio channel block, identify its "own" sequence by the key in the data packet, upon receipt of its "own" key, consider the remaining packet as a control command. According to the command to control the device connected at the output.
I repeat - the radio channel block and the microcontroller must be powered from the induced EMF. That is, consume very little.
There are no special questions on the third point, we will select the controller ourselves. Points 1 and 2 cause questions. Has anyone implemented this? Perhaps someone knows specialized forums on this topic?
PS I ask you not to kick much if I wrote in an amateurish way. Never dealt with this topic before.

Answer 1

The best microcontrollers for consumption today are MSP430 and EFM32. Take a closer look at Minamoto
lithium-thionyl chloride cells - large capacity, service life of 5-7 years, inexpensive.

Answer 2

I even saw somewhere a construct based on a coil, SMD capacitor + attiny.
Initially, the topic of generator power and remoteness of receivers was not disclosed in the question.
The inverse square law is insidious :)
Requirements for receivers: permanent work, or worked and sleep?