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Randome (a portmanteau of radar and dome) is a structural, weatherproof enclosure used to protect an antenna. What distinguishes a Randome structure from other structures is that the material used in building the Randome allows a relatively unattenuated electromagnetic signal between the antenna inside the Randome and outside equipment. Using conventional building materials (i.e. steel, aluminum, bricks, etc.) would block most if not all of the antenna signal. Randomes are used to protect the surfaces of the antenna from the effects of environmental exposure (e.g., wind, rain, sand, UV, ice, etc.) and/or conceal antenna electronic equipment from public view. They also protect personnel who work nearby from being accidentally struck by a fast-moving antenna.

Randomes can be constructed in several shapes (spherical, geodesic, planar, etc.) depending upon the particular application using various construction materials (fiberglass, PTFE-coated fabric, etc.). When used on UAVs or other aircraft, in addition to such protection, the Randome also streamlines the antenna system, thus reducing drag.

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Posted by alaxander