电子测量与仪器学报

杨国,肖如奇,沈飘飘,李梦洁,吴文.宽带多谐振偶极子天线设计[J].电子测量与仪器学报,2023,37(5):136-142

宽带多谐振偶极子天线设计

Design of wideband and multi-resonant dipole

DOI：

英文关键词:resonant antenna wideband antenna dipole theory of characteristic mode

基金项目:国家自然科学基金(62071235)项目资助

作者	单位
杨国	1.南京理工大学电子工程与光电技术学院
肖如奇	1.南京理工大学电子工程与光电技术学院
沈飘飘	1.南京理工大学电子工程与光电技术学院
李梦洁	1.南京理工大学电子工程与光电技术学院
吴文	1.南京理工大学电子工程与光电技术学院

Author	Institution
Yang Guo	1.School of Electronic Engineering and Optoelectronic Technique, Nanjing University of Science and Technology
Xiao Ruqi	1.School of Electronic Engineering and Optoelectronic Technique, Nanjing University of Science and Technology
Shen Piaopiao	1.School of Electronic Engineering and Optoelectronic Technique, Nanjing University of Science and Technology
Li Mengjie	1.School of Electronic Engineering and Optoelectronic Technique, Nanjing University of Science and Technology
Wu Wen	1.School of Electronic Engineering and Optoelectronic Technique, Nanjing University of Science and Technology

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中文摘要:

根据目前无线通信系统发展小型化与宽带化的趋势,设计了一款具有多谐振点的宽带偶极子辐射天线。首先通过特征模理论分析倒 T 型导体结构得到两个谐振模式;然后在不影响倒 T 型导体结构谐振特性的前提下,引入寄生谐振偶极子单元; 最后在 3 个谐振模式的电流共同最大处添加集总端口,同时激励 3 个谐振模式,得到 3 个谐振点的宽带谐振天线。天线的仿真与实测结果基本吻合,最终的工作带宽为 1. 8~ 2. 56 GHz (相对带宽为 34. 9%)。由此,所设计的天线不仅结构简单,且性能方面良好,可广泛应用于无线通信系统中。

英文摘要:

According to the current trend of miniaturization and broadband development of wireless communication systems, a broadband dipole with multiple resonant modes is designed. First of all, the resonant modes of the inversed T-shaped conductor are analyzed by the theory of characteristic mode and the first two resonant modes are chosen; then a parasitic resonant dipole element is introduced without affecting the resonant characteristics of the inversed T-shaped conductor; finally, a lumped port is placed at the place that the three resonant modes have common maximum current value, these three resonant modes are excited simultaneously, and a wideband resonant antenna with three resonant modes is obtained. The simulated and measured results are in good agreement, with the final operating bandwidth of the antenna ranging from 1. 8 to 2. 56 GHz (34. 9% relative bandwidth). As a result, the designed antenna is not only simple in structure, but also good in performance and can be widely used in wireless communication systems.

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