摘要
介绍了共面波导天线的辐射原理，在此基础上依据串馈天线理论设计出一种共面波导结构的串馈天线。天线辐射单元由6个微带单元串接组成，辐射单元与上地面之间的缝隙为恒定值，各个辐射单元的辐射系数由泰勒加权法确定，各个辐射单元的辐射能量逐次递减。经仿真计算回波损耗小于15dB时，天线带宽为260MH：（10．45～10．71GHz），天线辐射主瓣与最大旁瓣差大于16．5dB，天线的辐射效率为69％。
The paper introduces the basic radiation principle of coplanar waveguide （CPW） antenna, based on which a novel series-feed antenna of coplanar waveguide structure is designed by using series-feed theory.The antenna radiation element consists of six micro-strips, the distance between the radiation element and the upper-ground is constant, every coefficient of radiation element is determined by the Taylor method,the radiation energy of every element is decreased successively. Simulation results are as follows： the bandwidth is about 260 MHz （10.45 - 10.71 G） when the return loss is less than 15 dB, the difference between the radiation main lobe and the maximum side-lobe is more than 16.5 dB,and the radiation efficiency is 69%.
出处
《无线电通信技术》
2011年第1期38-40,共3页
Radio Communications Technology
