Zero-Energy Sensor Networks with mm-wave Metamaterial Wireless Sensors

The outlook for the impending era of 6G envisions an unparalleled surge in the deployment of Internet of Things (IoT) sensors, expected to reach approximately ten times the quantity present in the 5G era (10 million devices per square kilometer). To deploy such big number of sensors is imperative to meet the requirements of being cost-effective, energy-efficient, easily maintainable, and environmentally sustainable. This opens the possibility of massively deploying metamaterials structures with sensing capabilities at zero-energy consumption. Here, it is explained why the use of mm-wave waves is decisive to develop this new concept of metamaterial internet of things (META-IOT) paradigm.