Ultra-Low Power IoT Devices for 6G Networks Based on Ambient Backscatter
| Reference number | |
| Coordinator | Chalmers Tekniska Högskola AB - Chalmers Tekniska Högskola Inst f Elektroteknik |
| Funding from Vinnova | SEK 91 000 |
| Project duration | September 2024 - April 2025 |
| Status | Completed |
| Venture | International individual mobility within cutting-edge technology |
| Call | Closed offer - International individual mobility for cutting-edge technology 2024 |
Important results from the project
The primary objective was to design low-power communication modules for IoT devices. The researcher developed a fully passive true-time-delay (TTD) based beamforming network, enabling retrodirective arrays for monostatic ambient backscatter communication. Through collaboration, the project achieved improved performance over the state of the art (SOTA). The results were presented at the EuCAP 2025 conference in Stockholm, highlighting the project´s success.
Expected long term effects
The results of this project hold potential for transforming the future of low-power IoT devices by significantly reducing power consumption in communication modules. As the proliferation of IoT devices continues to accelerate, the need for sustainable alternatives to traditional battery-powered solutions becomes increasingly urgent. In the long term, the outcomes of this project could revolutionize the way we power and connect billions of devices, leading to major social and economic benefits.
Approach and implementation
The project was implemented according to plan, with the visiting researcher’s tasks at Chalmers focused on proposing novel retro-directive array solutions and preparing design files for prototyping. The researcher’s two stays in Sweden, each lasting three weeks, allowed for the completion of the design process in CST Microwave Studio. The project followed the planned structure and timeline, with no major unexpected issues affecting the collaboration.