Main Page | See live article | Alphabetical index In telecommunication, a billboard antenna is an array of parallel dipole antennas with flat reflectors, usually positioned in a line or plane. Note 1: The spacing and dimensions of the dipoles depend on the wavelength. Note 2: The main lobe of a fixed billboard antenna may, within limits, be steered by appropriate phasing of the respective signals to individual elements of the array. Synonym broadside antenna. Source: from Federal Standard 1037C This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.