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The attic can be a useful installation point for those who do not want their antenna inside or outside for aesthetic or other reasons. Omnidirectional - Omnidirectional antennas are designed to radiate a signal in all directions. Best Gaming Headsets Raspberry Pi LCD Display Kits For example, consider the two of the most important devices in our life: A Mobile Phone and a Television (or simply T.V.). Directional Antenna . In addition to contributing articles to wiseGEEK about art, literature, and March 4, 2019 By Administrator 3 Comments. But if we consider an isotropic antenna, then its power density will be same at all points on the sphere of radiation. It is represented by U and is independent to distance from the antenna. One of the most popular antennas is the Horn Antenna, which effects the transition between transmission line and wave propagating in free space. GABRIEL ANTENNAS. 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