One of the characteristics of Yagi antennas is their directivity. By adjusting the length and position of the reflector and director, electromagnetic waves in a specific direction can be received and transmitted, thereby increasing the gain of the antenna. This makes Yagi antennas very useful when communicating over long distances or when receiving weak signals. Another characteristic of Yagi antennas is their relatively high gain. Yagi antennas are designed to achieve higher antenna gain at specific frequencies. In addition, Yagi antennas have a high bandwidth within a certain range, so they can cover multiple frequencies. Overall, Yagi antennas are widely used in various communications and broadcast applications due to their directivity, gain, and bandwidth advantages. Whether used for home TV antennas, wireless networking, or radio communications, Yagi antennas are a common and effective choice.