Inside every cellphone lies a tiny mechanical heart, beating several billion times a second. These micromechanical resonators play an essential role in cellphone communication. Buffeted by the cacophony of radio frequencies in the airwaves, these resonators select just the right frequencies for transmitting and receiving signals between mobile devices.
Click here for original story, Strobe light for 5G: NIST imaging system spotlights the tiny mechanical hearts at the core of every cellphone
Source: Phys.org