线元天线阵列超短电脉冲传输特性实验研究  

Transmission property of ultra-short electric pulse radiated by linear element antenna array

作　　者：杨宏春[1] 阮成礼[1] 崔海娟[1] 曾刚[1] 孙云卿[1] 

机构地区：[1]电子科技大学物理电子学院,四川成都610054690227

出　　处：《电波科学学报》2007年第1期17-20,共4页Chinese Journal of Radio Science

基　　金：自然科学基金(10390160);国家重点实验室基金(YAK200501);电子科技大学青年基金(JX03019)

摘　　要：用脉冲电源产生亚纳秒高斯电脉冲给线元天线馈电,测试线元天线轴线能量的传输特性;实验结果表明:在相同轴线距离处,线元阵列天线轴线能量与单元天线轴线能量之比正比于天线阵列阵元数的平方;阵列天线轴线能量具有慢衰减传输特性;对线元阵列天线不同行、列作适当馈电延迟,可以实现辐射电磁波束的空间扫描。所有实验结果在误差范围内与理论计算结果符合。The propagation characteristics of axial energy from linear element antenna array feed with sub-nanosecond Gauss pulse is measured experimentally in this paper. The measured results show that for the same distance along axial line, the maximum energy of antenna array at axial point z is proportional to the square of antenna number of the array; the axial energy of antenna array is of slow-decaying property; the electromagnetic pulse beam scanning may be realized by proper electrical phase feding delay to different row and column of the antenna array. The measured data are in good agreement with the theoretical computation within the error limition.

关 键 词：线元天线阵列 亚纳秒电磁脉冲 慢衰减特性 波束扫描 

分 类 号：TN015[电子电信—物理电子学] O441.1[理学—电磁学]