Sign In

Communications of the ACM

ACM News

Cheap Chips Herald Future of Wave and Pay

View as: Print Mobile App Share:
Wave and pay

Credit: Josep Lago/AFP/Getty Images

Small, cheap smart-tag devices that are printed as digital circuits in rolls like newspapers could help kickstart the wireless payment industry. The devices, known as rectennas, combine a rectifier—which converts current from AC to DC—with an antenna, and can harness power directly from radio waves given off by a mobile phone.

From New Scientist
View Full Article


No entries found

Sign In for Full Access
» Forgot Password? » Create an ACM Web Account