用于高功率微波系统的全介质透镜阵列天线

张峰; 卢佩; 赵加宁; 杨若洋; 陈俊达

doi:10.11884/HPLPB202436.240246

用于高功率微波系统的全介质透镜阵列天线

doi: 10.11884/HPLPB202436.240246

张峰^{1, 2,},
卢佩^{1, 2},
赵加宁^3, ,,
杨若洋³,
陈俊达^{1, 2}

1.
桂林理工大学计算机科学与工程学院，广西桂林 541006
2.
桂林理工大学广西嵌入式技术与智能系统重点实验室，广西桂林 541006
3.
电子科技大学长三角研究院，浙江湖州 313099

基金项目: 国家自然科学基金青年基金项目（62101149）

详细信息

作者简介:
张　峰，835812050@qq.com

通讯作者:
赵加宁，zjn317253663@126.com。

中图分类号: TN822.4
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- 被引次数: 0
出版历程
- 收稿日期: 2024-08-02
- 修回日期: 2024-09-02
- 录用日期: 2024-08-26
- 网络出版日期: 2024-09-07

All-dielectric lens array antenna for high-power microwave applications

Zhang Feng^{1, 2
,},
Lu Pei^{1, 2},
Zhao Jianing^{3
, ,},
Yang Ruoyang³,
Chen Junda^{1, 2}

1.
College of Computer Science and Engineering , Guilin University of Technology, Guilin 541006, China
2.
Guangxi Key Laboratory of Embedded Technology and Intelligent System, Guilin University of Technology, Guilin 541006, China
3.
Yangtze Delta Region Institute, University of Electronic Science and Technology of China, Huzhou 313099, China

摘要

摘要: 为了实现透镜阵列天线所需的移相范围，设计了两种不同的单元结构，通过优化参数，在保证良好的传输幅值的基础上实现相移范围的互补。为了探索在高功率微波系统应用，对两种单元的功率容量也开展了详细研究。在无限周期情况下，随着单元尺寸变化，单元功率容量范围为1.08～19.37 MW；通过研制口径为315 mm×315 mm的透镜天线来构建有限周期条件，并仿真计算得到该天线最大功率容量为226.553 MW，功率密度可以达到2283.23 W/mm²，并且该天线在中心频点10 GHz处峰值增益可达到29.37 dBi，口径效率为62.43%，副瓣电平约为-21.54 dBi。结果表明所提出单元的有效性与正确性，也说明设计的透镜阵列天线不仅具有良好的辐射特性，同时具有MW量级的功率容量。
- 高功率透镜阵列天线 /
- 高功率容量 /
- 高增益 /
- 全介质 /
- 口径效率
Abstract: An all-dielectric high-power microwave lens array antenna is proposed in this paper. In order to achieve the required phase shift range of the lens array antenna, two different cell structures are designed in this paper, and by optimizing the parameters, complementary phase shift ranges are achieved on the basis of ensuring good transmission amplitude. In order to explore the application in high power microwave systems, a detailed study of the power capacity of the two units is also carried out in this paper . Firstly, in the infinite period case, with the change of cell size, the cell power capacity ranges from 1.08−19.37 MW; secondly, the finite period condition is constructed by developing the lens antenna with an aperture of 315 mm×315 mm, and the simulation calculates to obtain that the antenna's maximum power capacity is 226.553 MW, the power density can reach 2283.23 W/mm², and the antenna can reach a peak gain of 29.37 dBi at the central frequency point of 10 GHz, the aperture efficiency of 62.43%, and the sub-flap level of about −21.54 dBi . The above results show the validity and correctness of the proposed unit, and also indicate that the designed lens array antenna not only has good radiation characteristics, and also has a power capacity of MW magnitude.
- high-power lens array antenna /
- high power capacity /
- high gain /
- all dielectric /
- aperture efficiency

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图 1 单元1

Figure 1. Unit 1

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图 2 单元2

Figure 2. Unit 2

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图 3 两个单元的相移曲线与幅值

Figure 3. Amplitude and phase of the proposed units

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图 4 电磁波入射角度示意图

Figure 4. Electromagnetic wave incident angle diagram

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图 5 不同入射角度下两个单元的幅值和相位变化特性

Figure 5. Amplitude and phase shift characteristics of proposed units at different incident angles

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图 6 单元表面最大场强和功率容量

Figure 6. Maximum field strength and Power capacity of the proposed units

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图 7 全介质透镜阵列天线模型示意图

Figure 7. Model of all-dielectric transmission array antenna

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图 8 阵面的相位分布以及各单元尺寸分布图

Figure 8. Phase and size distribution of the designed transmission array

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图 9 透镜阵列E面和H面的辐射方向图

Figure 9. Radiation pattern of E and H planes of the designed transmission array

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图 10 增益随频率变化

Figure 10. Gain variation with frequency

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图 11 全介质透镜阵列天线的最大表面场强

Figure 11. Maximum surface field strength

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表 1 阵列天线性能对比

Table 1. Performance comparison of array antennas

reference	type	gain/dBi	area/(mm×mm)	aperture efficiency/%	E_d/（MV/m）	P_c/MW	band width/%
[7]	leaky waveguide	26.2	800×53.08	76.2	3.38	200	—
[8]	all-metal	32.8	500×500	54.59	50	2679.08	—
[11]	all-metal	23.7	189×189	50.6	3/80	0.5/358	24.2(1-dBi)
[12]	dielectric- metal	27.58	80×80	52.33	3	13.99	26.4(3-dBi)
[20]	all-metal	21.8	160×320	—	7	12	—
this work	all-dielectric	29.37	315×315	62.43	7	226.6	51(3-dBi)

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