The control of electric currents in solids is at the origin of modern electronics which has revolutionised our daily life. The diode and the transistor introduced by Braun  and Bardeen and Brattain  are undoubtedly the corner stones of modern information technologies. Such devices allow for rectifying, switching, modulating, and even …

U.S. military researchers are asking industry to develop secure radio frequency (RF) transmitter and receiver technologies to enable the next generation of secure military tactical radio systems. Tactical communications is critical requirement of  military communications in which information of any kind, especially orders and military intelligence, are conveyed from one …