高功率超宽带组合天线的设计与实验

吴昊; 屈劲; 陈世韬; 余川; 刘良; 石小燕

doi:10.11884/HPLPB202335.230065

高功率超宽带组合天线的设计与实验

doi: 10.11884/HPLPB202335.230065

吴昊^{1, 2,},
屈劲^{2, 3},
陈世韬^{2, 3},
余川^{2, 3, ,},
刘良^{1, 2},
石小燕^{2, 3}

1.
中国工程物理研究院研究生院，四川绵阳 621900
2.
中国工程物理研究院应用电子学研究所，四川绵阳 621900
3.
中国工程物理研究院高功率微波技术重点实验室，四川绵阳 621900

基金项目: 高功率微波重点实验室基金项目(61426050303-2)

详细信息

作者简介:
吴　昊，wuhao@ieee.org

通讯作者:
余　川， yuchuan@263.net

中图分类号: TN822
计量
- 文章访问数: 697
- HTML全文浏览量: 244
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- 被引次数: 0
出版历程
- 收稿日期: 2023-03-29
- 修回日期: 2023-05-08
- 录用日期: 2023-05-08
- 网络出版日期: 2023-05-15
- 刊出日期: 2023-06-15

Design and experiment of ultra-wideband combined antenna for high-power microwave

Wu Hao^{1, 2
,},
Qu Jin^{2, 3},
Chen Shitao^{2, 3},
Yu Chuan^{2, 3
, ,},
Liu Liang^{1, 2},
Shi Xiaoyan^{2, 3}

1.
Graduate School of China Academy of Engineering Physics, Mianyang 621900, China
2.
Institute of Applied Electronics, CAEP, Mianyang 621900, China
3.
Science and Technology on High Power Microwave Laboratory, CAEP, Mianyang 621900, China

摘要

摘要: 为满足高功率纳秒脉冲的发射需求，设计了一种适用于高功率微波的超宽带组合天线，对比了将点馈式巴伦和直馈式巴伦应用于高功率超宽带组合天线后天线的驻波曲线和表面电场分布情况，分析了组合天线阻抗与尺寸的关系，利用Klopfenstein阻抗渐变线降低反射，利用可调平板调整天线磁偶极子面积以提升天线低频性能，并通过驻波测试实验加以验证。在此基础上，进行了高功率微波实验，在全底宽3 ns、峰-峰值121 kV、中心频率329 MHz高功率双极脉冲的激励下，可实现功率容量73 MW，有效电压增益1.97。
- 高功率微波 /
- 超宽带 /
- 组合天线 /
- 阻抗渐变 /
- 磁偶极子
Abstract: To meet the requirement of high-power nanosecond pulse emission, an ultra-wideband combined antenna for high-power microwave is designed. Voltage standing wave ratio (VSWR) and electric field distribution of high-power ultra-wideband combined antenna with point-fed balun and tapered-slot balun are compared. The relationship between characteristic impedance and dimensions of the combined antenna is analyzed. Klopfenstein impedance taper is used to reduce reflection. The size of the magnetic dipole is optimized by adjustable plate to improve the low frequency performance of the antenna, and validated by experiment for VSWR testing. On this basis, high-power microwave experiment is performed. With excitation of the high-power bipolar pulse whose bottom width is 3 ns, peak-to-peak value is 121 kV and center frequency is 329 MHz, the power handling capacity of the antenna is 73 MW, effective potential gain is 1.97.
- high-power microwave /
- ultra-wideband /
- combined antenna /
- impedance taper /
- magnetic dipole

HTML全文

图 1 高功率超宽带组合天线结构图

Figure 1. Photograph of the HP-UWB combined antenna

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图 2 高功率超宽带组合天线TEM喇叭部分结构图

Figure 2. Sketch of the TEM horn part of the HP-UWB combined antenna

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图 3 直馈式巴伦模型图

Figure 3. Sketch of the tapered-slot balun

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图 4 使用不同巴伦时高功率超宽带组合天线的驻波曲线

Figure 4. Comparison of VSWR of HP-UWB combined antennas with different baluns

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图 5 不同巴伦及TEM喇叭上板的最大电场分布

Figure 5. Electric field distribution of different baluns with upper plate of TEM horn

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图 6 不同磁偶极子面积的高功率超宽带组合天线的驻波曲线对比

Figure 6. Comparison of VSWR of HP-UWB combined antennas with different area of magnetic dipole

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图 7 阻抗变换段模型图

Figure 7. Sketch of the impedance transformer

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图 8 阻抗变换段的驻波曲线

Figure 8. VSWR of the impedance transformer

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图 9 驻波测试实验平台

Figure 9. Experimental platform for VSWR testing

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图 10 高功率超宽带组合天线驻波曲线的仿真与实测结果

Figure 10. Measured and simulation results of VSWR of HP-UWB combined antenna

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图 11 实验用高功率双极脉冲波形

Figure 11. Waveform of the high-power bipolar pulse for experiment

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图 12 归一化实验用高功率双极脉冲频谱

Figure 12. Normalized spectrum of the high-power bipolar pulse for experiment

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图 13 天线辐射场波形（10 m）

Figure 13. Waveform of radiation field of the antenna at 10 m

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图 14 天线辐射场归一化频谱（10 m）

Figure 14. Normalized spectrum of radiation field of the antenna at 10 m

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