Phonon based radio frequency front end on single chip for smaller, more powerful wireless devices

https://phys.org/news/2024-05-phononics-materials-smaller-powerful-wireless.html

"100X smaller (smartphone size of earbuds), require less signal strength, power... transmitting mechanical vibrations through material at frequencies much too high to hear... combines semiconductor and piezoelectric to generate giant nonlinear interactions between phonons, 1 beam can change another beam's frequency... avoids losses from having to go back and forth between radio and sound waves, that add up degrading performance... phonons can be manipulated in ways that used to only be realized with transistors"