What improves when an antenna has high directivity?

When an antenna has high directivity, it focuses the radiated power in a specific direction rather than spreading it out over a wider area. This focus effectively concentrates the signal energy, which leads to improved signal stability and strength in the desired direction. A highly directional antenna can therefore enhance communication quality by reducing interference from undesired signals and increasing the reception of the intended signal. This improvement is particularly beneficial in applications where strong, stable signals are essential, such as in telecommunications or broadcasting. Additionally, the ability to direct the antenna's gains toward a specific target allows for more efficient use of the transmitted power.