基于远场时间反演的亚波长天线阵列研究

内容简介：基于远场时间反演,从信号处理角度对亚波长阵列的超分辨率聚焦特性进行了理论分析.提出了一种新型的微结构刻蚀亚波长阵列,通过时间反演聚焦实验表明,该阵列具有远场超分辨聚焦特性,各单元间信道相互独立.将这种亚波长阵列应用在时间反演镜天线上,通过实验验证了可以获得更好的超分辨率聚焦效果.所提出的亚波长天线阵列对多天线超宽带无线通信具有潜在的应用价值.

Abstract：Based on far-field time reversal, the super-resolution focusing property of the subwavelength array is analyzed theoretically according to signal processing in this paper. A novel subwavelength array is proposed. It is demonstrated experimentally that the array has super-resolution focusing property in the far-field zone and each element has an independent channel. With this kind of subwavelength array used in time reversal mirror, better super-resolution focusing result is achieved. The proposed subwavelength array may be useful in the applications of multi-antenna ultra-wideband (UWB) wireless communications.

作者：梁木生, 王秉中, 章志敏, 丁帅, 臧锐,

关键词：时间反演, 亚波长, 天线阵列, 超分辨率,