The Yagi-Uda antenna, commonly known as a Yagi antenna, is a type of directional antenna that is widely used in radio communications. It consists of multiple elements: a driven element, a reflector, and one or more directors. The arrangement of these elements allows the antenna to focus radio waves in a specific direction, enhancing signal strength and reception. Yagi antennas are popular for various applications, including television reception and amateur radio. Their design makes them effective for long-range communication, as they can pick up signals from distant sources while minimizing interference from unwanted directions.