一种宽频带共形天线的特性研究  

Performance analysis of wideband conformal antenna

作　　者：钱祖平[1,2] 韩振平[1] 倪为民[1] 刘宗全[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007 [2]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》2012年第1期141-146,共6页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(NO.60872046)

摘　　要：设计了一种具有宽频带特性的柱面共形天线,通过改变柱体曲率半径、长度和介电常数等参数,详细分析了其变化对共形天线性能的影响。结果表明:柱体各个参数的变化会导致天线的谐振频率、阻抗带宽以及辐射特性发生显著的改变。对设计宽频带共形天线时共形载体的选取提供了可靠依据。实际加工制作了天线,测量结果表明:该天线具有宽频带特性,可用频段覆盖2～16GHz,在工作频段内具有较好的辐射特性,增益稳定。A cylindrical conformal antenna with wideband characteristic is proposed and analyzed.By changing the radius,length and permittivity of the cylinder,the effects of these parameters on the impedance characteristics and radiation capabilities of the antenna are analyzed.The simulated results show that the resonant frequency,impedance bandwidth and the radiation patterns all greatly change with the changing of the radius,length and permittivity of cylinder.Simulated results give credible ideas to choose suitable carrier when design wideband conformal antennas.The conformal antenna is fabricated and measured and the results show that the antenna has a high wide band capability with operation bandwidth from 2~16 GHz.The radiation property and stable gain can be achieved at the operation frequency.

关 键 词：宽频带 共形天线 阻抗特性 辐射特性 

分 类 号：TN822.8[电子电信—信息与通信工程]