一种高功率微波发射阵列天线设计和试验

毛永艳; 张帆; 田川; 解江远; 金兆鑫

doi:10.11884/HPLPB202436.230448

一种高功率微波发射阵列天线设计和试验

doi: 10.11884/HPLPB202436.230448

毛永艳^1,,
张帆^{1, 2},
田川¹,
解江远¹,
金兆鑫¹

1.
西安电子工程研究所，西安 710100
2.
西北工业大学电子信息学院，西安 710072

详细信息

作者简介:
毛永艳，yymao1024@126.com

中图分类号: TM832
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- 被引次数: 0
出版历程
- 收稿日期: 2023-12-24
- 修回日期: 2024-05-17
- 录用日期: 2024-05-17
- 网络出版日期: 2024-05-25
- 刊出日期: 2024-07-04

Design and test of an array antenna transmitting high power microwave

1.
Electronic Engineering Research Institute, Xi'an 710100, China
2.
School of Electronics and Information, Northwestern Polytechnical University, Xi'an 710072, China

摘要

摘要: 设计了一种用于高功率微波发射的S波段波导缝隙阵列天线。采用耦合波导和馈电波导同层排布的方式减小了天线的剖面高度，通过耦合缝隙同向偏置，辐射缝隙按照一定规律排布补偿相位，实现了缝隙单元方向图同相叠加，对缝隙参数、功分器形式与功率容量的关系进行了仿真分析，并在天线内部充入0.1 MPa SF₆气体，提高了天线的功率容量。仿真和试验结果表明，在6.7%带宽内，天线电压驻波比小于1.5，增益达到27 dBi，采用窄谱高功率微波源激励天线并进行了高功率微波发射试验，天线的发射波形与微波源的输出波形具有良好一致性，测试的微波源输出功率为2.67 MW。
- 高功率微波 /
- 功率容量 /
- 波导缝隙阵列天线 /
- SF₆气体 /
- 微波源
Abstract: A slotted waveguide array antenna operating at S band for transmitting high power microwave is developed in this paper. The profile height is reduced by arranging the coupling waveguide and feeding waveguide on same layout. The coupling slots with same offsets direction and the radiating slots arranged regularly compensate phase, which achieves in-phase superposition of pattern of slot units. The influence of different slot parameters and types of divider on power capacity of the antenna are simulated. 0.1 MPa SF₆ gas is filled in the sealed antenna to enhance power-handling capability. The simulated and test results show that the antenna has a 6.7% bandwidth with VSWR less than 1.5 and a gain up to 27 dBi. Hot test of this antenna is carried out fed by narrow-band high power microwave source. The transmitted waveform and the output one agree well. The measured output power of the source is 2.67 MW.
- high power microwave /
- power-handling capability /
- slotted waveguide array antenna /
- SF₆ gas /
- microwave source

HTML全文

图 1 12×12发射阵列天线结构图

Figure 1. Structure of 12×12 transmitting array antenna

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图 2 子阵结构

Figure 2. Structure of subarray

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图 3 矩形波导内传输TE₁₀模时的管壁电流分布与5种缝隙类型

Figure 3. Wall current distribution within waveguide transferring TE₁₀ and 5 types of slot

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图 4 辐射缝隙参数提取模型

Figure 4. Model used to extract parameters of radiation slot

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图 5 两种H-T功分器的结构和电场强度分布图

Figure 5. Structures and electric field distribution of two kinds of H-T junction power dividers

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图 6 d_j1=4 mm，d_j2=4 mm时，E-T结功分器的电场分布

Figure 6. Electric field distribution within E-T junction divider with d_j1=4 mm and d_j2=4 mm

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图 7 天线的电场分布

Figure 7. Electric field distribution of antenna

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图 8 电压驻波比和辐射方向图

Figure 8. VSWR and radiation patterns

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图 9 发射功率测试布局

Figure 9. Test layout for transmitting power

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图 10 接收波形和发射波形

Figure 10. Received and transmitted waveforms

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表 1 ly₁=10 mm，不同w₁取值下的E_max

Table 1. ly₁=10 mm, E_max with different w₁

w₁/mm lx₁/mm E_max/(V·m⁻¹)

8 50.10 3013.39

10 50.56 2467.90

12 51.00 2162.49

14 51.26 1939.91

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表 2 w₁=12 mm，不同ly₁取值下的E_max

Table 2. w₁=12 mm, E_max with different ly₁

ly₁/mm lx₁/mm E_max/(V·m⁻¹)

8 49.86 2273.79

10 50.98 2162.49

12 51.85 2370.78

14 52.7 2023.07

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表 3 E-T结功分器内部的E_max

Table 3. E_max within E-T junction divider

d_j1/mm d_j2/mm E_max/(V·m⁻¹)

0 0 1244.21

0 2 1314.58

2 0 1428.46

2 2 1473.24

2 4 1447.33

4 2 1300.9

4 4 1250.06

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