带直角反射器的太赫兹等离子体-金属混合天线

为了满足可工作于太赫兹频段以及较好的方向性和高增益的需求, 在等离子体天线的基础上提出了新型等离子体-金属混合八木天线, 在其中将反射振子替换为夹直角反射板。根据等离子体天线及八木天线设计理论, 设计了该天线的结构并初步确定了其结构参数。通过电磁仿真研究了不同天线-顶点间距情况下天线的回波损耗、增益、电压驻波比和辐射方向图, 最终实现了结构参数优化。与不带反射板的天线的对比结果表明, 该结构具有更高的增益与更优的前后比。

Abstract

A new kind of THz hybrid metal-plasma Yagi antenna has been proposed on the basis of plasma antenna to meet the requirements of good directivity and high gain, in which reflection oscillator is replaced by right-angle reflector. The structure is designed by the theory of plasma antenna and Yagi antenna, and the parameters are preliminarily determined. Then electromagnetic simulation is carried out to examine the performance parameters of the Yagi antenna, such as the return loss, gain, voltage standing wave ratio and radiation pattern, in which the condition of different distances between the vertex of angle reflector and dipole is considered. Contrasted with the antennas without angle reflector, the structure proposed in this article has much higher gain and better front-to-rear ratio.

参考文献

[1] 朱安石, 陈自力, 吕军慰, 等. 表面波激励等离子体天线辐射方向图重构方法研究［J］. 真空科学与技术学报, 2013, 33(12): 1203-1208.(Zhu Anshi, Chen Zili, Lü Junwei, et al. Reconfiguration of radiation pattern of surface-wave excited plasma antenna.Chinese Journal of Vacuum Science and Technology, 2013, 33(12):1203-1208)

[2] Theodore A. Plasma antennas［M］. Boston: Artech House, 2011.

[3] 赵会超, 刘少斌, 孔祥鲲, 等. 等离子体八木天线的仿真与实验研究［J］. 微波学报, 2014, 30(1): 20-28.(Zhao Huichao, Liu Shaobin, Kong Xiangkun, et al. Simulation and experimental study on the plasma Yagi antenna.Journal of Microwaves, 2014, 30(1):20-28)

[4] 陈文波, 冯军, 黄国玉, 等. 等离子体圆形反射器天线辐射特性的数值计算［J］. 南华大学学报, 2017, 31(1): 39-42.(Chen Wenbo, Feng Jun, Huang Guoyu, et al.Number calculation the radiation characteristics of plasma round-reflector antenna.Journal of University of South China, 2017, 31(1):39-42)

[5] Giulia M, Davide M, Antonio D. Hybrid metal-plasma Yagi-Uda antenna for microwave applications［C］//Proceedings of the 46th European Microwave Conference. 2016:727-730.

[6] Borg G G, Harris J H, Martin N M. Plasma as antennas: Theory, experiment and applications ［J］. Physics of Plasma, 2000, 7(5):2198-2202.

[7] George B, Alan H B.电磁振荡电磁波和辐射［M］. 北京: 人民教育出版社,1981.(George B, Alan H B. Electromagnetic oscillation, electromagnetic wave and radiation. Beijing: People’s Education Press, 1981)

[8] Chaudhury B, Chaturvedi S. Three-dimensional computation of reduction in radar cross section using plasma shielding［J］. IEEE Trans Plasma Science, 2005, 33:2027-2034.

[9] 魏文元, 宫德明. 天线原理［M］. 北京: 国防工业出版社,1985.(Wei Wenyuan, Gong Deming. Principle of antenna. Beijing: National Defence Industry Press, 1985)

[10] 李莉. 天线与电波传播［M］. 北京: 科学出版社, 2009. (Li Li. Antenna and propagation. Beijing:Science Press, 2009)

[11] 常媛媛. 八木天线的设计仿真与测试［D］. 北京: 北京交通大学, 2006: 38-40.(Chang Yuanyuan. Design simulation and test of Yagi-Uda antenna. Beijing: Beijing Jiaotong University, 2006:38-40)

[12] John D K, Ronald J M. Antenna: For all applications［M］.北京: 电子工业出版社, 2006.(John D K, Ronald J M. Antenna: For all applications. Beijing: Publishing House of Electronics Industry, 2006)

宋哲, 刘玉宝, 赵欣悦, 阮久福, 尹治平. 带直角反射器的太赫兹等离子体-金属混合天线[J]. 强激光与粒子束, 2018, 30(6): 063101. Song Zhe, Liu Yubao, Zhao Xinyue, Ruan Jiufu, Yin Zhiping. THz hybrid metal-plasma Yagi antenna with right-angle reflector[J]. High Power Laser and Particle Beams, 2018, 30(6): 063101.

带直角反射器的太赫兹等离子体-金属混合天线

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