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学者姓名：张哲晨
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Abstract ：
This paper presents a visualized approach to efficiently designing an antenna decoupling network constructed by cascaded coupled transmission lines (CTLs). The cascaded CTL architecture is explored to decouple tightly-packed antenna pairs with extremely small feed point spacing, circumventing the narrow bandwidth and loss issues associated with resonant decoupling structures. To facilitate the fast CTL design, we propose to analytically map the CTLs’ odd-mode (OM) and even-mode (EM) characteristic impedances onto the Smith charts of the antenna’s OM and EM input impedances. By leveraging this approach, the required CTL’s OM and EM parameters for antenna decoupling can be directly determined without relying on intricate optimization or try-and-error processes. To demonstrate the effectiveness of our methodology, a printed monopole antenna pair with an element center-to-center spacing of merely 0.1λ0 (at 3.5 GHz) is prototyped, which presents a 15-dB isolation bandwidth of 18% and a total efficiency exceeding 85% over this bandwidth. The proposed decoupling approach substantially simplifies the design of compact high-isolation antenna pairs which would have important applications in MIMO communication systems. IEEE
Keyword ：
Antenna decoupling Antenna decoupling Antennas Antennas Coplanar waveguides Coplanar waveguides coupled transmission line coupled transmission line Couplings Couplings Impedance Impedance MIMO communication MIMO communication multiple-input multiple-output (MIMO) technology multiple-input multiple-output (MIMO) technology odd and even modes odd and even modes Substrates Substrates Visualization Visualization visualized design visualized design
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| GB/T 7714 | Zhou, Z. , Cheng, Z. , Zhang, Z. et al. Visualized Design of Antenna Decoupling Networks Constructed by Cascaded Coupled Lines [J]. | IEEE Transactions on Antennas and Propagation , 2024 , 72 (6) : 1-1 . |
| MLA | Zhou, Z. et al. "Visualized Design of Antenna Decoupling Networks Constructed by Cascaded Coupled Lines" . | IEEE Transactions on Antennas and Propagation 72 . 6 (2024) : 1-1 . |
| APA | Zhou, Z. , Cheng, Z. , Zhang, Z. , Ge, Y. , Chen, Z.D. . Visualized Design of Antenna Decoupling Networks Constructed by Cascaded Coupled Lines . | IEEE Transactions on Antennas and Propagation , 2024 , 72 (6) , 1-1 . |
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Abstract ：
拓扑优化方法因其高自由度特点在器件智能设计领域发挥重要作用,在微波工程课程中引入器件拓扑优化实验可提升课程前沿性.该实验通过天线匹配网络拓扑优化提高天线的辐射性能:首先采用阻抗矩阵方法对天线匹配网络的响应进行理论建模,随后利用遗传算法对网络进行拓扑优化,实现天线工作频带的智能按需设计.结果表明,经过拓扑优化的微波天线可在指定的频带内实现良好的阻抗匹配,达到95％以上的最大天线效率.该实验展示了基于阻抗矩阵理论的微波网络拓扑优化方法,为微波与天线相关课程提供了一项具备综合性、前沿性的课题训练项目.
Keyword ：
天线匹配网络 天线匹配网络 拓扑优化 拓扑优化 智能设计 智能设计 阻抗矩阵 阻抗矩阵
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| GB/T 7714 | 周子恒 , 苏梓暄 , 周彦峰 et al. 天线匹配网络拓扑优化:理论建模与数值实验 [J]. | 实验技术与管理 , 2024 , 41 (11) : 1-7 . |
| MLA | 周子恒 et al. "天线匹配网络拓扑优化:理论建模与数值实验" . | 实验技术与管理 41 . 11 (2024) : 1-7 . |
| APA | 周子恒 , 苏梓暄 , 周彦峰 , 张哲晨 , 许志猛 , 陈志璋 . 天线匹配网络拓扑优化:理论建模与数值实验 . | 实验技术与管理 , 2024 , 41 (11) , 1-7 . |
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Abstract ：
This article presents a visualized approach to efficiently designing an antenna decoupling network constructed by cascaded coupled transmission lines (CTLs). The cascaded CTL architecture is explored to decouple tightly-packed antenna pairs with extremely small feed point spacing, circumventing the narrow bandwidth and loss issues associated with resonant decoupling structures. To facilitate the fast CTL design, we propose to analytically map the CTLs' odd-mode (OM) and even-mode (EM) characteristic impedances onto the Smith charts of the antenna's OM and EM input impedances. By leveraging this approach, the required CTL's OM and EM parameters for antenna decoupling can be directly determined without relying on intricate optimization or try-and-error process. To demonstrate the effectiveness of our methodology, a printed monopole antenna pair with an element center-to-center spacing of merely 0.1.0 (at 3.5 GHz) is prototyped, which exhibits a 15-dB isolation bandwidth of 18% and a total efficiency exceeding 85% over this bandwidth. The proposed decoupling approach substantially simplifies the design of compact high-isolation antenna pairs which would have important applications in multiple-input multiple-output (MIMO) communication systems.
Keyword ：
Antenna decoupling Antenna decoupling coupled transmission line (CTL) coupled transmission line (CTL) multiple-input multiple-output (MIMO) technology multiple-input multiple-output (MIMO) technology odd and even modes odd and even modes visualized design visualized design
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhou, Ziheng , Cheng, Zubin , Zhang, Zhechen et al. Visualized Design of Antenna Decoupling Networks Constructed by Cascaded Coupled Lines [J]. | IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION , 2024 , 72 (6) : 4744-4753 . |
| MLA | Zhou, Ziheng et al. "Visualized Design of Antenna Decoupling Networks Constructed by Cascaded Coupled Lines" . | IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 72 . 6 (2024) : 4744-4753 . |
| APA | Zhou, Ziheng , Cheng, Zubin , Zhang, Zhechen , Ge, Yuehe , Chen, Zhizhang . Visualized Design of Antenna Decoupling Networks Constructed by Cascaded Coupled Lines . | IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION , 2024 , 72 (6) , 4744-4753 . |
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