The demonstration of a Yagi–Uda nano-antenna that operates at visible wavelengths gives hope for a convenient means of directing radiation patterns from nanoscale light sources such as single ...

Antennas are an essential part of radio telecommunications equipment, bridging the gap between electronic and electromagnetic signals. The shape and size of an antenna is a strong clue as to its type, ...

Antennas are a critical part of the RF signal chain, that’s not news. As the last stage on the transmit side, and the first stage on the receive side, a system’s performance depends to a large degree ...