Yagi and Uda invent the beam now known as a Yagi

In 1926, Shintaro Uda and Hidetsugu Yagi of Tohoku Imperial University in Japan invented the directional antenna array, now widely known as the Yagi-Uda antenna or simply the Yagi antenna. This innovative design features a driven element (typically a dipole), one or more directors, and a reflector. The Yagi antenna’s configuration enhances its ability to focus radio frequency energy in a particular direction, significantly increasing gain and improving signal reception and transmission. The Yagi antenna became a popular choice for amateur radio operators and various commercial and military applications due to its simplicity, effectiveness, and ease of construction. The invention of the Yagi antenna marked a significant advancement in antenna technology, contributing to more efficient and reliable radio communications.