Novel transmitter protects wireless devices from hackers

Eurekalert  June 7, 2018
Researchers at MIT have developed an ultrafast frequency hopping transmitter that frequency hops every microsecond and a protocol to support the ultrafast frequency hopping. The transmitter leverages BAW resonators and rapidly switches between a wide range of RF channel. They replaced a crystal oscillator with an oscillator based on a BAW resonator and incorporated components that divide an input frequency into multiple frequencies creating a host of new radio frequencies that can span about 80 channels. Their work will be presented at the IEEE Radio Frequency Integrated Circuits Symposium… read more.