切比雪夫馈电网络开口谐振环天线阵列

范银玲; 卢萍; 黄卡玛

doi:10.11884/HPLPB202335.220401

切比雪夫馈电网络开口谐振环天线阵列

doi: 10.11884/HPLPB202335.220401

四川大学电子信息学院，成都 610065

基金项目: 国家自然科学基金青年科学基金项目(51907130)

详细信息

作者简介:
范银玲，1019079189@qq.com

通讯作者:
卢　萍，pinglu90@scu.edu.cn

中图分类号: TN827
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- 被引次数: 0
出版历程
- 收稿日期: 2022-11-29
- 修回日期: 2023-01-18
- 录用日期: 2023-01-20
- 网络出版日期: 2023-02-28
- 刊出日期: 2023-04-07

A planar split ring resonator antenna array fed by Chebyshev network

College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China

摘要

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。
- 切比雪夫平面阵 /
- 开口谐振环 /
- 高增益 /
- 低旁瓣电平
Abstract: A 13×14 planar split ring resonator (SRR) antenna array with the Chebyshev feed network is proposed. This antenna array consists of antenna elements and a Chebyshev feed network. Based on the principle of the Yagi antenna, the radiating patch is designed as an antenna element of the director with the metal ground being the reflector. The radiating patch is composed of three SRRs, an I-shaped resonator and two circular monopoles to enhance the radiation capability of the antenna element and improves the antenna gain. The feed of the antenna element 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 the non-uniform current distribution is used to reduce the side lobes. Moreover, the antenna element substrate is vertically erected on the substrate of the feed network to reduce the aperture size of the array with the feed network. Finally, the antenna 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.
- Chebyshev planar array /
- split ring resonator /
- high gain /
- low sidelobe level

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图 1 天线单元结构

Figure 1. Structure of antenna element

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图 2 电场分布

Figure 2. Electric field distribution

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图 3 天线单元仿真结果

Figure 3. Simulation results of the antenna element

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图 4 阻抗匹配结构

Figure 4. Impedance matching structure

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图 5 串联馈电网络

Figure 5. Model of series feed network

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图 6 馈电网络

Figure 6. Feed network

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图 7 阵列电流分布

Figure 7. Surface current distribution on the antenna array

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图 8 切比雪夫平面阵列

Figure 8. Chebyshev planar array

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图 9 天线阵列实物图

Figure 9. Photographs of the proposed antenna

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图 10 S参数仿真测试结果

Figure 10. Simulated and measured S-parameter

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图 11 E面和H面仿真测试辐射方向图

Figure 11. Simulated and measured radiation patterns at E-plane and H-plane

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表 1 天线单元主要参数尺寸

Table 1. Size of main parameters

L/mm W/mm H/mm H_s/mm R₁/mm R₂/mm R₃/mm S₁/mm G₁/mm G₂/mm θ/(°)

9.2 7 1.524 1.2 1.82 2.4 2.7 0.6 0.8 1 55

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