Phononic crystals (PnCs) are artificial structural composites with periodic modulation of elastic parameters, and they are capable of regulating the propagation of sound waves. Devices with different ...

One limit to the use of phased array radars is the physical size of the arrays. Their large size prevents their use in collision avoidance systems in automobiles and other platforms that could benefit ...

Modern wireless communication systems prefer higher frequencies to meet the growing demand for faster data transfer. The ...

Preventing adversaries from interfering with communications is crucial to national security. Tactical satellite ...