This antenna is optimized for use in 3G cellular, 4G LTE, and LTE plus systems using the 694-960 MHz and 1700-2700 MHz bands. Their omni-directional coverage makes installation simpler because they are easier to align with other antennas in the wireless network. Using the latest PCB technology, these antennas improve high-speed broadband system performance. This design maintains an omni pattern in the horizontal plane. This is a free space antennas; no groundplane is required. The fiberglass design makes the antennas durable and rugged. They can withstand the harshest environments of snow, wind, rain and ice.