空军工程大学学报（自然科学版）Issue(5)：57-61,5.DOI:10.3969/j.issn.1009-3516.2014.05.013
一种高增益强定向波导缝隙天线
A High-gain and Directivity Enhanced Waveguide Antenna
摘要
Abstract
A double screen FSS with positive reflection phase gradient(the general with negative slope),a-bove 0.83 reflection magnitude value and partially reflection features at 5.42~5.80GHz is designed and fab-ricated,the new waveguide antenan bandwidth is broadened,gain is improved and directivity is enhanced by applying the double screen FSS as a radome on the radiation orientation.The FSS radiation enhanced and scattering reduced mechanism are analyzed by adopting ray theory and Fabry-Perot resonator model,and the capabilities of new antenna are validated by simulation and experimentation.The results show that:the bandwidth of the antenna is increased by 34.6% and the gain of the antenna is enhanced by 6.94 dB,and the half-power beam width of E-plane and H-plane are reduced by 240 and by1280 respectively.关键词
频率选择表面/反射系数/高增益/波导缝隙天线Key words
frequency selective surface/reflection coefficient/high-gain/waveguide antenna分类
电子信息工程引用本文复制引用
郑月军,高军,曹祥玉,袁子东,李文强..一种高增益强定向波导缝隙天线[J].空军工程大学学报（自然科学版）,2014,(5):57-61,5.基金项目
陕西省自然科学基金资助项目(2012JM8003) （2012JM8003）
