基于新型泡沫材料的龙伯透镜天线设计

燕秀林; 史昀祺; 朱丽娜

doi:10.11999/JEIT220569

基于新型泡沫材料的龙伯透镜天线设计

doi: 10.11999/JEIT220569

1.
西安交通大学城市学院西安 710018
2.
西安电子科技大学通信工程学院西安 710071

详细信息

作者简介:
燕秀林：女，硕士，副教授，研究方向为微波与电磁场理论

史昀祺：男，硕士生，研究方向为天线设计

朱丽娜：女，博士，副教授，研究方向为车联网

通讯作者:
朱丽娜　lnzhu@stu.xidian.edu.cn

中图分类号: TN82; TN928
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出版历程
- 收稿日期: 2022-04-30
- 修回日期: 2022-06-29
- 网络出版日期: 2022-08-19
- 刊出日期: 2022-12-16

Design of Luneburg Lens Antenna Based on Novel Foam Materials

YAN Xiulin¹,
SHI Yunqi²,
ZHU Lina^{2
, ,}

1.
City College, Xi'an Jiaotong University, Xi’an 710018, China
2.
School of Telecommunications Engineering, Xidian University, Xi’an 710071, China

摘要

摘要: 该文利用新型泡沫材料聚甲基丙烯酰亚胺(PMI)，设计了一种适用于复杂太空环境探测的毫米波龙伯透镜天线，通过将泡沫材料的密度与介电常数相关联，结合传统龙伯透镜天线的工作原理进行仿真优化，实现了小型化高增益多波束的功能。仿真结果表明：该天线工作于33.7 GHz，增益可以达到25.65 dBi，波束宽度4.17°。该设计方法为将来小型化高增益的龙伯透镜的实现提供了新的思路。
- 天线 /
- PMI泡沫 /
- 龙伯透镜天线 /
- 高增益天线
Abstract: In this paper, a new type of foam material PolyMethacrylimIde (PMI) is used to design a millimeter-wave Luneburg lens antenna for the detection of complex space environment. By correlating the density of the foam material with the dielectric constant, combined with the working principle of the traditional Luneburg lens antenna, the simulation optimization is carried out, and the function of miniaturized high-gain multi-beam is realized. The simulation results show that the antenna works at 33.7 GHz, the gain can reach 25.65 dBi, and the beam width is 4.17°. This design method provides a new idea for the realization of miniaturized high-gain Luneburg lenses in the future.
- Antenna /
- PMI foam /
- Luneburg lens antenna /
- High-gain antenna

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图 1 龙伯透镜原理示意图

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图 2 龙伯透镜仿真模型图

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图 3 r₁=32 mm, r₄=65 mm下的部分优化方案

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图 4 增益随馈源距离的仿真结果

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图 5 泡沫龙伯球实物图

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图 6 龙伯透镜测试图

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图 7 馈源距离l=3 mm时的远场图

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图 8 测试仿真结果对比图

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表 1 PMI泡沫密度与其电性能参数

序号	1	2	3	4	5	6	7	8	9
密度(kg/m³)	49.75	75.72	123.64	170.69	256.88	413.76	468.34	544.68	634.62
相对介电常数	1.065	1.100	1.170	1.230	1.340	1.560	1.640	1.750	1.880
损耗正切	0.0011	0.0016	0.0031	0.0036	0.0043	0.0085	0.0092	0.0099	0.0110

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参考文献(16)

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