An antenna is a device for sending or receiving radio signals. You’re probably most familiar with the Yagi-Uda antennae used for receiving UHF terrestrial television signals or the parabolic satellite dishes used to receive Ku-band satellite television signals. A high-gain Yagi-Uda antennae used for terrestrial digital television. Warships typically have a large number of antennae … Continue reading Advances in antennae