摘要
设计出一种由两个六边形开口谐振环组成的电磁超材料单元,这种新型的电磁超材料单元实现了左手特性。然后优化出一个中心频率为16 GHz的二元阵列微带天线,将左手材料单元置于辐射贴片周围,利用三维电磁仿真软件HFSS对其进行优化仿真,最终制作了一款加载左手材料的微带阵列天线。仿真及实测结果表明,在相同的工作频率下,加载了左手材料的阵列天线与普通阵列天线相比,其谐振点的回波损耗由-32.7 dB减小到-59.7 dB,同时在低频产生了谐振点,实测其旁瓣得到了有效的缩小,主瓣变窄,方向性增强,增益由8.3 dB增加到8.8 dB,提高了天线的多项性能指标,且实测回波损耗与仿真曲线吻合较好,在16 GHz处的增益图与仿真对比大致相同。
An electromagnetic metamaterial unit consisting of two hexagonal split-ring resonators was designed.This novel electromagnetic metamaterial unit implemented the left-handed characteristic.Then,a two element array microstrip antenna with a central frequency of 16 GHz was optimized.With placing the left-handed material around the radiation patch,and using 3 D electromagnetic simulation software HFSS to optimize the simulation,a microstrip array antenna loaded with left-handed material was finally made.The simulation and measurement results show that the return loss of the array antenna loaded with left-handed material is reduced from-32.7 dB to-59.7 dB compared with the conventional array antenna at the same working frequency,meanwhile a resonance point is generated at low frequency,the measured sidelobe has been effectively reduced,the main lobe is narrowed,the directivity is enhanced,the gain is increased from 8.3 dB to 8.8 dB,the multiple performance of antenna is improved,the measured return loss is in good agreement with the simulation curve,and the gain map at 16 GHz is approximately same as that of the simulation.
作者
李晓丹
李峰
LI Xiaodan;LI Feng(School of Instrument and Electronics,North University of China,Taiyuan,030051,CHN;Shanxi Baixin Information Technology Co.,Ltd.,Taiyuan,030006,CHN)
出处
《固体电子学研究与进展》
CAS
北大核心
2019年第1期44-48,76,共6页
Research & Progress of SSE
基金
山西省重点研发计划(指南)项目(201603D121034)
关键词
开口谐振环
左手材料
阵列天线
宽频段
split-ring resonator
left-handed material
array antenna
wideband
