摘要
提出了一种利用多种形式的辐射贴片阵元组成的复合式阵列天线。阵元采用了多种形式的馈电方法。部分阵元和馈电微带线直接连接馈电,其他阵元和馈电微带线采用电磁耦合进行馈电。通过优化辐射贴片的形状、对应的馈电方法、辐射贴片连接端的阻抗调节块、阵列单元之间的阻抗调节段,在宽频带内不但获得了良好的阻抗特性,也实现了期望的赋形辐射方向图。测试结果表明,该阵列天线高度小于中心频率的0.06个波长,相对阻抗带宽(驻波比小于1.45)和辐射带宽分别超过23%和17%。
A novel compound array antenna formed by many different kinds of printed radiating patches with different feeding methods is proposed and manufactured. These corner radiation patches can operate in dual line polarizations. Some of these patches are fed directly and the others are electromagnetically coupling between the patches and feeding microstrip line. By properly designing the different configurations of the radiating patches, feeding technique, impedance tuning patches con- nected to the radiating patches and impedance matching sections between array units, not only the desired radiation pattern of the array antenna but also a wide impedance bandwidth can be achieved. The height of the designed array antenna is less than 0.06 wavelength of center frequency and its relative impedance bandwidth （ VSWR〈 1.5 ） and radiation pattern band- width exceed 23% and 17% respectively.
出处
《微波学报》
CSCD
北大核心
2012年第5期37-39,60,共4页
Journal of Microwaves
关键词
复合式阵列天线
宽频带
双极化
低剖面
compound array antenna, broad bandwidth, dual polarization, low profile
作者简介
彭文峰男，湖南人，1974年生，博士生，助理研究员。主要研究方向为微波毫米波通信系统及天线设计。E-mail：pwfmen@163．com
