Radio-frequency (RF) control of an ultrasonic phononic crystal was achieved by encapsulating it in a composite of high k-10% KF-doped BaTiO 3 dielectric nanoparticles with poly(N-isopropylacrylamide) ...

Radio-frequency scanners, like the Uniden Bearcat Scanner, check for active radio communications in your immediate area. They're commonly purchased by hobbyists, but they also have many business ...

Radio Frequency (RF) engineering forms the backbone of modern wireless communications, radar, satellite systems, and sensor networks by harnessing and manipulating electromagnetic energy across a ...

What are harmonics in RF systems? A given signal’s second harmonic is approximately twice the given signal’s fundamental frequency. Ideally, amplifiers are expected to have zero non-linearities in the ...