<p>➀ An EU-funded project (€8.4 million) led by TU Graz and partners aims to develop battery-free IoT devices using wireless energy and backscatter communication;</p><p>➀ The technology utilizes distributed antenna systems for low-power transmission and passive communication, eliminating the need for batteries;</p><p>➁ Potential applications include retail (e.g., electronic shelf labels) and logistics (precise tracking), with challenges in processing weak signals over long distances.</p>