摘要
设计了一种新型毫米波微带双频平面天线阵,该天线阵单元采用凹槽加载中心馈电结构。这种馈电方式恰好等效为在微带贴片上加载了一个电抗,通过调节馈电线的长度,可以获得两个零点,从而使微带天线实现双频工作。基于这种馈电结构和并联馈电网络,制作了平面4×4双频段天线阵。根据实验和仿真结果的比较,二者拟合较好。实测的双频天线阵工作在32.5 GHz和35.7 GHz,天线阵的增益16.25 dB,辐射效率为82%。
A novel dual-band microstrip planar antenna array with patch element schemed by using inset-fed feed technology is proposed.This feed structure is equivalent to loading a reactance on the microstrip patch.Through adjusting the length of the feeding line,the microstrip antenna obtains two zero points and realizes dual-band.Based on this patch element and parallel network,a planar 4×4 dual-band microstrip array is fabricated.The experiment and simulation results have a good agreement.The dual-band is at 32.5 GHz and 35.7 GHz.The gain of the antenna array is 16.25 dB and the radiant efficiency is 82%.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2011年第4期746-749,共4页
Systems Engineering and Electronics
基金
国家青年自然科学基金(60801016)
航空科学基金(20080177010)
高等教育部博士点基金(20070213058)资助课题
关键词
毫米波
双频
微带天线
天线阵
millimeter wave
dual-band
microstrip antenna
antenna array
