4.9GHz PTP Dish Antenna, 3-ft 4.9GHz PTP Dish Antenna, 3-ft (0.9m), 4.4-5.0GHz, 30.0 dBi, Dual-polarization, H-Pol & V-Pol Standard microwave antennas consist of a parabolic shaped reflector spun from a sheet of aluminum. The parabolic shape focuses energy at the feed point of the antenna. These parabolic antennas have a narrow focused beam of energy and relatively high gain compared to many other types of antennas. These antennas will have a mounting system to attach the antenna to a pipe, tower leg and/or a specific radio, in some cases.