Frequency Selective Surfaces (FSSs) are engineered, periodic arrays of conductive elements that serve as spatial filters for electromagnetic waves. By resonating at specific frequencies, these ...

LLC resonant converters represent a significant advance in power electronics, offering a compelling combination of high efficiency, power density and reduced electromagnetic interference, owing ...

Researchers describe an acoustic meta-surface that uses pingpong balls, with small holes punctured in each, as Helmholtz resonators to create inexpensive but effective low-frequency sound insulation.

Living human cells have resonant frequencies – rates at which they will naturally oscillate if the conditions are right. This has been suspected for decades, but researchers have now measured what ...