UC Berkeley and Stanford University engineers develop a possible solution for the wireless demands of the Internet of Things-- a cheap tiny (3.7mm x 1.2mm) dual-band radio powered by the signals it receives.
Similar tiny radios already exist, but unlike similar solutions (which operate on low frequencies), the Berkeley/Stanford radio receives data on the 24GHz band and transmits on 60GHz. This reduces the power requirements by so much the radio charges itself with energy from received signals.
Higher frequencies also allow very fast data transmission rates, even if in the data transmitted is of low volume.
“One of the benefits of going to high frequencies is that the wavelengths get smaller and you can put the antennas on the chip itself,” UC Berkeley Wireless Research Center director Ali Niknejad tells Wired.