Intelligent reflecting surface (IMAGE) Ruhr-University Bochum Caption The intelligent reflecting surface IRShield is positioned next to a Wi-Fi router for obfuscation of the environment-dependent wireless channel. Credit CASA, Michael Schwettmann Usage Restrictions The image may only be used for reporting about the research done at the Cluster of Excellence CASA. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.