Grid antennas are mainly used for point-to-point long distances, not short distances. This is the basic law of the antenna.
Antennas with large gain are used for long distances, and antennas with small gain are used for short distances.
The feed source used for grid antennas has high gain. Generally, grid antennas refer to parabolic antennas that use grid materials instead of plate materials. There are forward feed, partial feed and cylindrical antennas. Generally, in order to reduce the occlusion of the feed-forward antenna, the reflector (device) is required to be small.
