带反射腔的分布式电阻加载探地雷达天线设计与分析

吴秉横; 纪奕才; 方广有

doi:10.12000/JR15070

带反射腔的分布式电阻加载探地雷达天线设计与分析

DOI: 10.12000/JR15070 CSTR: 32380.14.JR15070

1.
(上海海事大学上海 200135)
2.
(中国科学院电子学研究所电磁辐射与探测技术重点实验室北京 100190)

基金项目:

中国科学院重点部署项目(KGZW-EW-603)

详细信息

作者简介:
吴秉横(1982-),男,河北人,2010年于中国科学院电子学研究所获工学博士学位,上海海事大学讲师,主要研究方向为超宽带天线技术和应用.E-mail:bhwu@shmtu.edu.cn纪奕才(1974-),男,山东人,中国科学院电子学研究所研究员,主要研究方向为超宽带雷达、超宽带天线、电磁场数值计算、电磁兼容.E-mail:ycji@mail.ie.ac.cn方广有(1963-),男,河南人,中国科学院电子学研究所研究员,博士生导师,主要研究方向为超宽带雷达成像理论与技术、探地雷达技术、地球物理电磁勘探技术、月球/火星探测雷达技术、超宽带天线理论与技术、THz成像技术等方面的研究工作.E-mail:gyfang@mail.ie.ac.cn

通讯作者:
吴秉横bhwu@shmtu.edu.cn

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- 被引次数: 18
出版历程
- 收稿日期: 2015-06-03
- 修回日期: 2015-07-10
- 网络出版日期: 2015-10-28

Design and Analysis of the Distributed Resistor-loading GPR Antenna with Reflected Cavity

1.
(Shanghai Maritime University, Shanghai 200135, China)
2.
(Key Laboratory of Electromagnetic Radiation and Sensing Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

Funds:

The Key Research Program of the Chinese Academy of Sciences (KGZW-EW-603)

摘要

摘要: 该文研究了一种半椭圆结构分布式加载偶极子天线.通过改进天线臂结构以及采用分布式电阻加载,有效降低电流在天线末端的反射,能够改进天线的输入阻抗特性,展宽天线的工作频带.应用长方体金属反射腔,减小了天线的后向辐射,增强了天线的地下穿透能力.利用电磁计算软件对天线进行了仿真和设计,并加工制作了一部样机,测试了样机的反射损耗和辐射特性等性能参数,测试与仿真结果较为贴合.将该天线应用于探地雷达系统进行地下目标探测实验,实验结果证明该天线满足探地雷达系统的需要.
- 探地雷达 /
- 超宽带天线 /
- 分布电阻加载 /
- 辐射特性
Abstract: In this study, we investigated the use of a half-ellipse dipole with distributed resistor-loading. By improving the structure of the antenna arms and using distributed resistor-loading technology, the current reflection at the end of dipole is significantly reduced, the input impedance is improved, and the operation bandwidth is widened. We decreased the backward radiation of the antenna with a cubic metal-reflective cavity and also improved the ground penetration ability. The proposed antenna was simulated and designed with electromagnetic computing software; on the basis of the design results, we fabricated the antenna sample. Measurement results of the return loss and radiation characteristics of the proposed antenna confirm the validity of the simulation. We applied the proposed antenna in a GPR system as an underground target detection experiment; on the basis of the experimental results, we conclude that the antenna is able to meet the needs of GPR systems.
- Ground Penetrating Radar (GPR) /
- Ultra-WideBand (UWB) antennas /
- Distributed resistor-loading /
- Radiation characteristic

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参考文献(19)

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