三层贴片宽频带正交线极化变换微带反射阵  

Triple-layer patches microstrip reflectarray with orthogonal polarization transform

作　　者：陈红辉[1] 章文勋[1] 吴知航[1] 刘震国[1] 

机构地区：[1]东南大学毫米波国家重点实验室,江苏南京210096

出　　处：《电波科学学报》2008年第2期225-228,共4页Chinese Journal of Radio Science

基　　金：国家自然科学基金(60371026)

摘　　要：分析三层矩形贴片反射阵单元的反射相位特性,获得700°的反射相位动态范围和20%的可用频带。据此设计了37个单元的三层贴片正交线极化变换反射阵,对样品进行整体仿真结果显示:在21.2%频带内的增益为18.1dBi而跌落小于1.5dB,在15.8%的分段频带内的交叉极化电平低于-15dB。测试结果稍逊。Reflection phase characteristics of triple-layer rectangular patches for reflectarray element are analyzed, 700° dynamic range of reflection phase and also 20% bandwidth are obtained. Then, a 37-element triple-layer reflectarray with orthogonal polarization transform is simulated, designed and tested. The simulated gain is 18. 1 dBi with -1.5 dB drop within 21. 2% bandwidth, and possesses 15.8% bandwidth with a notch for -15 dB of cross-polarization level. The measured data are slightly inferior.

关 键 词：微带反射阵 三层贴片 反射相位 极化变换 宽频带 

分 类 号：TN820.11[电子电信—信息与通信工程] TN820.15