PX505 Innovation Project

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Backscattering Using Classical MCU


  • Anton Dumas
  • Alexandre De Carlo
  • Arnaud Voisin
  • Bastien Lemaire


Backscattering Communications Using Classical Micro-Controller is a project based on the compelling idea proposed by [1] where a transmission can be done without using any RF chip. By modifying the internal state of GPIOs connected to an antenna, it is possible to modulate the backscattered signal of a remote reader. This technique allows to reduce the number of component of the system and decrease the power consumption.

This modulated power can be linked to the delta RCS introduced in [2] which allows to extract read range of the system.


  1. A. Dadkhah, J. Rosenthal and M. S. Reynolds, "ZeroScatter: Zero-Added-Component Backscatter Communication Using Existing Digital I/O Pins," 2019 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), Orlando, FL, USA, 2019, pp. 1-3
  2. P. V. Nikitin, K. V. S. Rao, and R. D. Martinez, “Differential RCS of RFID tag,” Electronics Letters, vol. 43, no. 8, pp. 431–432, Apr. 2007.