基于波导馈电的基片集成波导缝隙线阵天线-煤炭学报.PDF

摇 第36卷摇 增刊1 煤摇 摇 炭摇 摇 学摇 摇 报 Vol.36摇 Supp.1摇 摇 2011年 5月 JOURNAL OF CHINA COAL SOCIETY May摇 2011摇 摇 摇 文章编号:0253-9993(2011)S1-0215-04 基于波导馈电的基片集成波导缝隙线阵天线 彭摇 丽,刘摇 超,陈摇 浩 (煤炭科学研究总院安全装备技术研究分院,北京摇 100013) 摘摇 要:设计了一款Ku 波段低损耗、低旁瓣的基片集成波导缝隙线阵天线,天线的馈电结构由波 导到基片集成波导转换器组成,线阵是由基片集成波导上表面所开的8 个纵向缝隙组成。 软件仿 真计算表明:天线工作频率范围为12郾14 ~12郾84 GHz(阻抗带宽5郾6%,输入输出散射参数 S 11 -10 dB);在整个工作带宽内,天线增益均大于14郾5 dB,旁瓣电平低于26 dB,与预期的Taylor分布 (最低旁瓣电平S =30 dB)比较相符。 LL 关键词:基片集成波导;缝隙线阵天线;Taylor分布;低旁瓣 中图分类号:TD655郾3摇 摇 摇 文献标志码:A Substrate integrated waveguide slot array antenna based on waveguide feed PENG Li,LIU Chao,CHEN Hao (Safety Equipment Technology Branch,China CoalResearch Institute,Beijing摇 100013,China) Abstract:Designed a low loss,low side lobe Ku waveband substrate integrated waveguide(SIW) slot array antenna. The antenna feed structure consisted of a waveguide to SIW converter.Line array composed of SIW on the surface of the open longitudinal slot 8.The software simulation results show that the operating frequency range of antenna is 12郾14 ~12郾84 GHz(impedance bandwidth5郾6%,scattering parametersS -10 dB).In the bandwidth of the entire 11 work,the antennagainsareallgreaterthan 14郾5 dB,thesidelobelevelislowerthan26 dB,correspondedwiththeex鄄 pected Taylor distribution(the lowest side lobe level S =30 dB). LL Key words:substrate integrated waveguide(SIW);slot array antenna;Taylor distribution;low side lob 摇 摇 基片集成波导(Substrate Integrated Waveguide, 波导缝隙天线设计所满足的条件公