Which antenna type should be used for a site-to-site wireless connection?

Omnidirectional antennas radiate signals equally in all horizontal directions, providing broad coverage rather than the focused beam required for efficient long-distance site-to-site connections.

Dipole antennas are basic antennas, often with an omnidirectional or moderately directional pattern, and are generally not designed for the high gain and narrow beamwidth necessary for robust long-distance point-to-point links.

Patch antennas are directional but are typically used for shorter to medium-range directional links or indoor applications, and usually do not provide the necessary gain or beam control for effective long-distance site-to-site backhaul.

Yagi antennas are highly directional and offer high gain, which allows them to concentrate radio energy into a narrow beam. This makes them ideal for establishing stable, long-distance point-to-point wireless links, like those needed for site-to-site connections, by maximizing signal strength and minimizing interference.