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本文讨论了高效率直播卫星地面站天线(TVRO)的实现途径,叙述了12千兆赫3米天线在研制中所采取的优化方法,对预设的数字模型进行了计算。测试结果表明:天线效率大于72％,在20°仰角时,天线噪声温度为41.8°K,在11.7千兆赫～12.2千兆赫频带内,V.S.W.R≤1.13,同计算结果相吻合。
This paper discusses the implementation of high-efficiency direct broadcast satellite terrestrial antenna (TVRO), describes the optimization method of 12-GHz 3-meter antenna in the development, and calculates the preset digital model. The test results show that the antenna efficiency is greater than 72% and the antenna noise temperature is 41.8 ° K at an elevation angle of 20 °. V.S.W.R.l.l.13 in the frequency range of 11.7 GHz to 12.2 GHz coincides with the calculated results.