摘要
提出了一种基于切比雪夫馈电网络的13×14开口谐振环天线阵列。该天线阵列由天线单元和切比雪夫馈电网络组成。根据八木天线原理,该天线阵列设计的辐射贴片作为天线单元的引向器,金属地面作为反射器;辐射贴片由开口谐振环结构以及I型谐振结构组成,增强天线单元的辐射能力并提高增益;天线单元的馈电端由圆弧单极子组成,提高调节天线单元阻抗匹配的灵活性;电流矩阵指导非均匀电流分布切比雪夫馈电网络的设计,减小天线阵列的旁瓣;天线单元竖直插入馈电网络的基板,减少带有馈电网络阵列的口径大小。通过实物加工后,测试结果表明,该天线阵列在工作频率点10.1 GHz处实现了22.3 dBi的增益,E面和H面旁瓣电平分别为−16 dB和−17.66 dB,具有高增益、低副瓣的特点。
A 13×14 planar split ring resonator(SRR)antenna array with the Chebyshev feed network isproposed.This antenna array consists of antenna elements and a Chebyshev feed network.Based on the principle ofthe Yagi antenna,the radiating patch is designed as an antenna element of the director with the metal ground being thereflector.The radiating patch is composed of three SRRs,an I-shaped resonator and two circular monopoles toenhance the radiation capability of the antenna element and improves the antenna gain.The feed of the antennaelement is composed of arc monopoles,which improves the flexibility of adjusting the impedance matching.Furthermore,the calculation of the current matrix is used to guide the design of the Chebyshev feed network,and thenon-uniform current distribution is used to reduce the side lobes.Moreover,the antenna element substrate is verticallyerected on the substrate of the feed network to reduce the aperture size of the array with the feed network.Finally,theantenna array achieves a high gain of 22.3 dBi and low sidelobe level of−16 dB and−17.66 dB in E-plane and H-respectively.
作者
范银玲
卢萍
黄卡玛
Fan Yinling;Lu Ping;Huang Kama(College of Electronics and Information Engineering,Sichuan University,Chengdu 610065,China)
出处
《强激光与粒子束》
CAS
CSCD
北大核心
2023年第5期45-50,共6页
High Power Laser and Particle Beams
基金
国家自然科学基金青年科学基金项目(51907130)。
关键词
切比雪夫平面阵
开口谐振环
高增益
低旁瓣电平
Chebyshev planar array
split ring resonator
high gain
low sidelobe level
