新型截断椭圆环单元宽带单层反射阵天线设计  

Design of a Novel Single-Layer Gapped Elliptic Ring Broadband Reflectarray

作　　者：尚济勇[1] 张广求[1] 赵明洋[1] 曹召焕[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《信息工程大学学报》2012年第4期475-477,481,共4页Journal of Information Engineering University

摘　　要：提出了一种新型的线极化宽带截断椭圆环反射阵单元结构。分析截断椭圆环结构相位特性,研究不同基板以及不同结构参数对相位曲线的影响,使其在7.5GHz～9.5GHz频率内具有一致的相移特性曲线。组阵测试表明,截断椭圆环3dB带宽能达到23.5%,在工作频带内具有良好的辐射特性。This paper presents a new phase-shifting gapped elliptic ring for linearly-polarized broad-band reflectarray applications. With investigation into phase characteristics of gapped elliptic ring el-ement, it is shown that different substrates and different parameters of configuration have unique in-fluences on phase characteristics. The gapped elliptic ring has approximatively accordant phase shift curves over 7.5GHz-9.5GHz. Based on comparative study of elliptic ring and gapped-ring phase curve and surface current distribution, it is shown that the gapped elliptic ring can keep the good phase characteristics. The tests of arrays show that the bandwidth at 3 dB reaches 23.5%

关 键 词：微带天线 反射阵 交叉极化 多谐振 宽频带 

分 类 号：TN822[电子电信—信息与通信工程]