无线电工程2016，Vol.46Issue(11)：55-58,4.DOI:10.3969/j.issn.1003-3106.2016.11.14
腔体加载式圆极化波导缝隙天线设计
Design of Circularly Polarized Waveguide Slot Antenna Loaded with Rectangular Cavities
摘要
Abstract
Circularly polarized antennas have attracted extensive attention in modern communication systems due to their inherent advantages.In this paper,a circularly polarized antenna constructed by a traditional waveguide slot antenna loaded with rectangular cavi⁃ties is presented.The realization mechanism of the circularly polarized wave radiated by the cavity and the effect of cavity dimensions on the impedance bandwidth of the antenna are also analyzed.The impedance characteristics and the circular polarization characteristics of this type of antenna can be tuned independently.The designed antenna operates in X⁃band and consists of 1×10 unit cells.The measured results show that the right hand circular polarized gain is about 16.5 dB at the center frequency.The axial ratio is less than 1 dB in the direction of main radiation and the impedance bandwidth (VSWR<2) is 64 MHz.The measured data is quite consistent with the simula⁃tion results.关键词
波导缝隙天线/腔体加载/圆极化/窄带Key words
waveguide slot antenna/loaded with cavities/circular polarization/narrow band分类
信息技术与安全科学引用本文复制引用
陈鑫华,马岩冰,马志祥,邵晓龙,李元勋..腔体加载式圆极化波导缝隙天线设计[J].无线电工程,2016,46(11):55-58,4.基金项目
国家高技术研究发展计划（“863”计划）基金资助项目（2015AA034102）；国家自然科学基金资助项目（61371053，61271038，51472042）。 （）
