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作 者:李洪彬[1] 丁卫平[2] 余同彬[2] 曹文权[1]
机构地区:[1]解放军理工大学通信工程学院研究生4队,江苏南京210007 [2]解放军理工大学通信工程学院卫星通信系
出 处:《军事通信技术》2011年第4期71-73,82,共4页Journal of Military Communications Technology
摘 要:文章设计了一种波束展宽的宽频带圆极化微带天线。天线单元采用层叠结构的形式实现宽频带,通过在天线四周加导电墙并改变地板尺寸展宽微带天线的波束宽度。主要研究了改变导电墙高度以及地板大小对天线的半功率波束宽度以及低仰角增益带来的影响,通过仿真优化,这种方法可以将天线的半功率波束宽度从68°提高到100°,同时仰角30°增益从0.01 dB提高到2.4 dB。加工制作了相应的微带天线,测试结果表明该天线具有频带宽、低仰角增益高以及波束宽度宽的优点,与仿真结果吻合较好。A broadband circularly polarized microstrip antenna with wider beamwidth was proposed.Stacked configuration was used to realize broad bandwidth.To widen the beamwidth of the antenna,conducting walls around the patch was introduced and the size of the ground plane adjusted at the same time.The influence of the height of the conducting wall and the size of the ground plane were mainly discussed.Simulation results indicate that the half-power beamwidth can be extended from 68°to 100°and the low angle gain of 30°can be enlarged from 0.01 dB to 2.4 dB.Finally the corresponding antenna was fabricated.The measured results indicate that the antenna has the advantages of broad bandwidth,high low angle gain and wide beamwidth,which agrees well with the simulated results.
分 类 号:TN82[电子电信—信息与通信工程]
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