| 摘要 |
FIELD: antenna engineering; cellular, paging, and other communication systems. SUBSTANCE: antenna designed for operation in frequency range of 700 to 1500 MHz with its directivity pattern controllable in vertical plane that produces vertically polarized radiation undirected in horizontal plane is built of radiating modules forming rigid coaxial line matched with active load and mounted together with set of counterweights on pole in vertical position relative to earth surface. EFFECT: enhanced gain of directivity pattern. 1 cl, 2 dwg |
