太赫兹科学与电子信息学报, 2017, 15 (4): 622, 网络出版: 2017-12-08   

低剖面宽带圆极化天线阵列

Low-profile broadband circularly polarized antenna array
作者单位
中国工程物理研究院 电子工程研究所, 四川 绵阳 621999
摘要
基于双馈双线极化微带天线, 结合威尔金森功分器、T形结功分器及顺序旋转馈电的优点, 设计了一种新型低剖面宽带圆极化2×2天线阵列。把辐射贴片和馈电网络集成在同一介质层, 有效地利用了介质空间, 降低了天线的剖面, 增加了天线的带宽。4个天线单元顺序旋转90°, 利用一分四T形结功分器给4个单元等幅、相位依次相差90°馈电。根据Ansoft's HFSS仿真结果, 制作了样机。样机实测结果和仿真结果吻合。实测结果表明, 该天线阵驻波带宽可以达到27.78%, 3-dB轴比带宽可以达到52%, 最大增益为14.19 dB。
Abstract
Combining the advantages of Wilkinson power divider, T-junction power splitter and sequential-rotation feed method, a novel low-profile broadband circularly polarized 2×2 antenna array is designed based on the dual-fed dual-polarized microstrip antenna. Radiation patch and feed network are integrated on the same substrate to improve the usage efficiency of the substrate, thus low-profile and broadband are obtained. Four elements are rotated 90° in turn. One-to-four T-junction power splitter provides the elements with balanced signals of equal magnitude and an incremental 90° phase. An antenna prototype is fabricated after simulation in Ansoft's HFSS. Good agreement is found between measurement and simulation. Experimental results show that the array has a 2-VSWR bandwidth of 27.78%, and a 3-dB axial ratio bandwidth of 52%. The maximum gain is 14.19 dB.

朱文静, 张海平, 赵鹏, 崔奉云. 低剖面宽带圆极化天线阵列[J]. 太赫兹科学与电子信息学报, 2017, 15(4): 622. ZHU Wenjing, ZHANG Haiping, ZHAO Peng, CUI Fengyun. Low-profile broadband circularly polarized antenna array[J]. Journal of terahertz science and electronic information technology, 2017, 15(4): 622.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!