Horn

An antenna design that features a waveguide section where the cross-sectional area gradually expands towards an open end, known as the aperture. This 'horn-like' shape helps to direct the radiated radio waves in a specific direction, enhancing the antenna's gain and directivity. Due to its simple construction and reliable performance across a wide range of frequencies, horn antennas are commonly used in applications including satellite communication, radar systems, and as feed elements for larger antenna structures like parabolic antennas.