欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
当点源置于竖直放置的圆柱形低折射率介质（n〈1）中时，其射线在竖直面会产生会聚特性而在水平面仍保持全向特性．据此原理，提出由金属柱阵列构成的圆柱共形异向介质覆层，并应用于单极子天线．利用矩量法对覆层的传输特性进行分析，并对基于此种覆层结构的单极子天线进行了实验验证．测试结果表明，该覆层在对单极子E面方向图进行会聚的同时保持H面方向图的全向特性，可使单极子的增益由5．0dB提高到7．8dB．
英文摘要：
A source embedded in a vertically installed cylinder of the low-refractive medium （ n 〈 1） will be concentrated in a narrow cone in the vertical plane and maintain its omni directivity in the horizontal plane. The ideas developed here are applied to the monopole using the conformal metamaterial cover which is composed of metallic cylinder arrays, the transmission properties of this metamaterial is analyzed by the method of moments, and the monopole antenna system based on the metamaterial cover is measured. Results show that the pattern of the monopole becomes more convergent in the E plane and maintains its omni-directivity in the H plane and that the gain of the monopole is increased from 5. 0 dB to 7. 8 dB.
同期刊论文项目
同项目期刊论文
期刊信息
位置：