专利名称：Antenna curtain 发明人：Peter Bruger
申请号：US07/936931
夸张手法的成语申请日：19920827
公开号：US05319380A
公开日：
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摘要：According to the invention, an antenna curtain, particularly a dipole curtain of an antenna in the decametric wave range is formed of a plurality of cables. Radiators are provided arranged esntially in a vertical plane, defining a radiator plane, in a plurality of rows located one atop another and in one column or in a plurality of columns next to one another. A line system device is provided for feeding the radiators of each column through conductive lines. A single catenary is provided to provide sufficient tension for the vertical or slightly inclined lines of the line system. An approximately horizontal spreader is arranged above each of the columns esntially perpendicularly to the radiator plane. The horizontal spreader is positioned beneath the catenary and above the topmost radiator, preferably spaced a small distance in height above the topmost radiator. In the ca of plural columns, horizontal spreaders are preferably arranged at equal distance in height in all columns above the topmost radiator. At least two supporting cables of the radiators and lines are provided for a column and are attached on one spreader at distances b, b1, b2 etc. The approximately vertical supporting cables or approximately vertical lines of the line system, of one column are attached at their lower ends esntially non-yieldingly and are spaced farther apart from one another at the bottom (distances a, a1, a2, etc.) than at the top such that a > b, a1 > b1, a2 > b2.
观察记录表格申请人：TELEFUNKEN SENDERTECHNIK GMBH 代理机构：McGlew and Tuttle
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