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| 一种基于5—20 kHz交流激励的U形等离子体天线 | |
| 引用本文： | 赵建森,张芝涛,王健,俞哲.一种基于5—20 kHz交流激励的U形等离子体天线[J].物理学报,2012,61(19):195201-195201. |
| 作者姓名： | 赵建森 张芝涛 王健 俞哲 |
| 作者单位： | 1. 大连海事大学轮机工程学院,大连,116026 2. 大连海事大学轮机工程学院,大连116026 大连海事大学物理系,大连116026 3. 大连海事大学物理系,大连,116026 |
| 基金项目： | 国家自然科学基金(批准号: 50877005)资助的课题. |
| 摘 要： | 以5—20 kHz交流电源作为等离子天线激励源, 建立了一款U形等离子体天线. 在详细阐述天线结构的同时并对其部分电特性进行了测量.结果发现, 在50—300 MHz频率范围内, 同工频交流与直流电源激励相比, 该天线的噪声电平非常低, 与相同构造的金属天线的噪声电平相接近.同时, 该等离子体天线具有很好的阻抗带宽特性, 且在较宽频带范围内也表现出了良好的增益特性. |
| 关 键 词： | 等离子体天线 交流激励 阻抗 增益 |
| 收稿时间： | 2012-01-14 |
A U-shape plasma antenna based on excitation of 5m20 kHz alternating current power supply |
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| Zhao Jian-Sen,Zhang Zhi-Tao,Wang Jian,Yu Zhe.A U-shape plasma antenna based on excitation of 5m20 kHz alternating current power supply[J].Acta Physica Sinica,2012,61(19):195201-195201. | |
| Authors: | Zhao Jian-Sen Zhang Zhi-Tao Wang Jian Yu Zhe |
| Institution: | 1. Insititute of Marine Engineering Dalian Maritime University, Dalian 116026, China;2. Department of Physics Dalian Maritime University, Dalian 116026, China |
| Abstract: | A U-shape plasma antenna is established by a 5—20 kHz alternating current(AC) source. The structure of the antenna is described, and part of electrical characteristics are measured. Results show that in a frequency range from 50 to 400 MHz, the noise level of 5—20 kHz AC plasma antenna is close to that of a metal antenna, but much lower than that of frequency AC plasma antenna. Besides, the antenna shows good impendance and gain bandwith characteristics. |
| Keywords: | plasma antenna AC excitation impedance gain |
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