Researchers discover aluminum foil actually does improve your wireless speed
Researchers at Dartmouth University have found that a 3D printed shape covered in aluminum foil can improve wireless range and increase Wi-Fi security. The project, which appeared on Eurekalert, involves placing a reflector on and around a Wi-Fi router’s antennae to shape the beam, increasing range and preventing it from passing through to unwanted spaces. “With a simple investment of about $35 and specifying coverage requirements, a wireless reflector can be custom-built to outperform antennae that cost thousands of dollars,” said Xia Zhou, a Dartmouth assistant professor. In their paper, Zhou and his colleagues tested multiple styles of directional antennas and also tested an “anecdotal” solution that involved sticking a soda can behind a router to shape the radio waves towards a target. After a few iterations, they were able to create specific shapes to increase Wi-Fi reception in specific rooms. They then created a program called WiPrint that 3D prints the exact shape needed to