Moreover, researchers have developed double-resonant-tunneling-diode patch-antenna oscillators that operate at frequencies up to 1.09 THz, achieving output powers that are competitive with other ...

A crystal radio is basically a high Q resonator tied to an antenna and an envelope detector. These days the envelope detector is a point contact diode such as a 1N34 Germanium diode. The resonant ...

An optical antenna-diode for photodetection. Scanning electron micrograph of a representative device array prior to ITO coating, imaged at a 65° tilt angle. For more information, please see ...