Which antenna type is designed to radiate or receive greater power in specified directions, enhancing performance?

The bidirectional antenna is adept at radiating or receiving signals in two specific directions, thereby improving signal performance compared to antennas that radiate isotropically in all directions. This focused energy output allows for better communication in applications where two-way communication is critical, as it can effectively concentrate power broadside to its main axis.

In scenarios where the goal is to maximize signal strength and quality primarily in two designated directions, bidirectional antennas are particularly advantageous. This directional aspect helps in reducing interference and increases the effective range of the communication system.

While other types, such as multidirectional antennas, may cover more than two directions, they do not provide the same level of enhancement in specified directions. Wave guides and horn antennas serve different purposes, mainly involving signal transmission and shaping rather than direct signal reception or radiation focusing in two clear paths.