A sector antenna is designed to provide a wide horizontal coverage angle, typically ranging from 60 to 180 degrees, which is ideal for covering broad areas such as outdoor amphitheaters, long hallways, or streets. The other options do not provide the same specific directional coverage pattern. Omnidirectional antennas radiate signal equally in all directions, which is suitable for general coverage but not for extended horizontal reach with limited vertical spread. A Yagi antenna is primarily used for point-to-point communication with more focused directionality, and a dish antenna offers highly focused directional coverage suitable for long-range point-to-point links.