用于瞬态高功率脉冲辐射的超宽带天线设计

毕岚; 薛谦忠; 席宝坤

doi:10.11884/HPLPB201830.180001

用于瞬态高功率脉冲辐射的超宽带天线设计

doi: 10.11884/HPLPB201830.180001

毕岚^{1, 2,},
薛谦忠^{1, 2, ,},
席宝坤^{1, 2}

1.
中国科学院电子学研究所, 高功率微波源与技术重点实验室, 北京 101407
2.
中国科学院大学, 北京 100049

基金项目:

国家自然科学基金项目 11475182

详细信息

作者简介:
毕岚(1993-)，男，硕士，从事高功率超宽带窄脉冲辐射天线及巴伦的研究；13167385663@163.com

通讯作者:
薛谦忠(1962-)，男，研究员，教授，博士生导师，从事新型毫米波器件与技术、天线理论及其应用研究；qianzhong_xue@mail.ie.ac.cn

中图分类号: TN788
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- 被引次数: 1
出版历程
- 收稿日期: 2018-01-01
- 修回日期: 2018-04-17
- 刊出日期: 2018-08-15

Design of ultra-wideband antenna for high-power transient pulse radiation

Bi Lan^{1, 2
,},
Xue Qianzhong^{1, 2
, ,},
Xi Baokun^{1, 2}

1.
Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences, Beijing 101407, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

摘要

摘要: 基于Valentine天线的辐射原理，设计出可发射峰值电压610 kV、频谱范围0.2~2 GHz高功率脉冲的超宽带天线。利用油作为绝缘介质过渡巴伦可使天线直接加载于50 Ω的同轴波导上；通过优化填充介质及天线拓扑结构提高了耐压能力及辐射特性。仿真结果表明，设计的天线具有低反射、宽频带、高增益和高耐压强度等优点。
- Valentine天线 /
- 巴伦 /
- 高功率脉冲 /
- 高耐压强度
Abstract: In this paper, a novel antenna based on the radiation principle of Valentine antenna is designed to radiate high-power short pulse with a 610 kV top voltage and an FFT spectrum of 0.2-2 GHz. The coaxial-to-parallel-strip balun filled with transformer oil is deployed to feed the antenna with a 50 Ω coaxial waveguide. The dielectric strength and radiation property are optimized by the dielectric material and topology structure of the antenna. Simulation result shows that the antenna has a low reflection, ultra wideband, great gain and high dielectric strength.
- Valentine antenna /
- balun /
- high-power pulse /
- high dielectric strength

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图 1 纵向开槽、横向尺寸展宽的同轴波导

Figure 1. Slotted coaxial waveguide with crosswise widening

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图 2 介质部分侧视剖面图(单位：cm)

Figure 2. Longitudinal section of the dielectric portion (size in cm)

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图 3 天线浸油部分和未浸油部分的耐压强度评估

Figure 3. Dielectric estimation of the antenna portion in oil and air

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图 4 S₁₁参数

Figure 4. S₁₁ parameter

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图 5 轴向实际增益

Figure 5. Axial realized gain

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图 6 不同频率的主平面方向图

Figure 6. Radiation patterns in the E and H planes at different frequencies

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图 7 不同频率的主平面方向图

Figure 7. Faifield time-domain response

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表 1 50 Ω特性阻抗的开槽角和对应的拉伸宽度

Table 1. Slotting angle and crosswise width for 50 Ω character impedance

α/(°)	0	20	40	60	80	100	120	140	160	180
w/d₀	0	0.054	0.372	1.088	1.917	2.418	2.703	3.247	3.999	4.954

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参考文献(11)

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