| 共面波导馈电折叠缝隙对数周期天线的研究 |
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| 引用本文： | 宋立众,丁畅,尹伟伟,刘尚吉,林涛.共面波导馈电折叠缝隙对数周期天线的研究[J].微波学报,2016,32(4):27-32. |
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| 作者姓名： | 宋立众 丁畅 尹伟伟 刘尚吉 林涛 |
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| 作者单位： | (1 哈尔滨工业大学(威海),信息与电气工程学院,威海,264209;2 中国航空工业集团公司济南特种结构研究所,高性能电磁窗航空科技重点实验室,济南,250023) |
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| 基金项目： | 国家自然科学基金面上项目(61571154);航空科学基金项目(2014ZC37002);国家科技重大专项(2014ZX03003001-004) |
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| 摘 要： | 超宽带天线是宽带电子系统中的关键部件。本文开展了折叠缝隙对数周期天线的电磁仿真和性能实验研究。根据对数周期偶极子天线的基本原理,设计了共面波导馈电的折叠缝隙对数周期天线。采用在折叠缝隙对数周期天线的折叠缝隙单元中加载相位槽的方法,进一步改善了天线低频端的驻波特性。对相位槽加载的折叠缝隙对数周期天线进行加工测试,测试结果表明在2 GHz~18 GHz的阻抗带宽内,驻波比小于3.5,与仿真结果吻合良好。设计了基于相位槽加载的共形LPFSA,给出了具体的仿真结果。本文的研究工作为该天线的实际应用提供了技术参考。
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| 关 键 词： | 电磁仿真 宽带天线 对数周期天线 缝隙天线 折叠缝隙对数周期天线 |
Research on a Log Periodic Folded Slot Antenna Fed by Coplanar Waveguide |
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| SONG Li-zhong,DING Chang,YIN Wei-wei,LIU Shang-ji,LIN Tao.Research on a Log Periodic Folded Slot Antenna Fed by Coplanar Waveguide[J].Journal of Microwaves,2016,32(4):27-32. |
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| Authors: | SONG Li-zhong DING Chang YIN Wei-wei LIU Shang-ji LIN Tao |
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| Affiliation: | (1. School of Information and Electrical Engineering, Harbin Institute of Technology at Weihai, Weihai, 264209, P. R. China,2. The Research Institute for Special Structures of Aeronautical Composite AVIC, The Aeronautical Science Key Lab for High Performance Electromagnetic Windows, Ji''nan, China, 250023) |
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| Abstract: | The ultra wide band (UWB) antenna is a key component of wide band electromagnetic system. This paper researches the problems of electromagnetic simulation and performance experiment of a log periodic folded slot antenna (LPFSA). A LPFSA fed by coplanar waveguide is designed, according to the basic principles of the log periodic dipole antenna (LPDA). The VSWR characteristics of the antenna in the low frequency band are improved by loading phase slot in the center conductor of the folded slot unit. The measurement of the phase slot loaded LPFSA was done. The experiment results show that the VSWR is less than 3. 5 within the frequency range of 2 GHz to 18 GHz, which were in good agreement with the simulation results. The conformal LPFSA is designed using the phase slot loaded LPFSA, and the corresponding simulation results are provided. The research work can provide a technical reference for the practical application of LPFSA. |
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| Keywords: | electromagnetic simulation wide band antenna LPDA slot antenna LPFSA |
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