超宽带低背腔车载探地雷达收发天线的研究

doi:10.3969/j.issn.0372-2112.2014.08.018

电子学报 ›› 2014, Vol. 42 ›› Issue (8): 1577-1581.DOI: 10.3969/j.issn.0372-2112.2014.08.018

超宽带低背腔车载探地雷达收发天线的研究

李雪萍^1,2,3, 纪奕才¹, 卢伟¹, 方广有¹

1. 中国科学院电磁辐射与探测技术重点实验室, 北京 100190;
2. 中国科学院大学, 北京 100039;
3. 河南师范大学物理与电子工程学院, 河南新乡 453007

收稿日期:2013-04-27 修回日期:2013-08-26 出版日期:2014-08-25
- 通讯作者:
- 李雪萍
- 作者简介:
- 纪奕才男，1974年出生于山东青岛，中国科学院电子学研究所副研究员，研究方向为超宽带电磁学、宽带天线技术、电磁场数值计算.；卢伟男，1984年出生于山东青岛，中国科学院电子学研究所助理研究员，研究方向为超宽带天线技术、电磁场仿真.；方广有男，1963年出生于河南确山，博士，中国科学院电子学研究所研究员，博士生导师，中国科学院“百人计划”入选者，主要研究方向为超宽带电磁学及其工程应用、损耗介质中隐蔽目标的电磁探测、微波成像新技术和新方法以及电磁场的数值计算方法等.

Research on an UWB Transmitting/Receiving Antenna with Shallow Backed Cavity Mounted on a Vehicle for GPR Application

LI Xue-ping^1,2,3, JI Yi-cai¹, LU Wei¹, FANG Guang-you¹

1. Key Laboratory of Electromagnetic Radiation and Sensing Technology, Chinese Academy of Sciences, Beijing 100190, China;
2. University of Chinese Academy of Sciences, Beijing 100039, China;
3. College of Physics and Electronic Engineering, Henan Normal University, Xinxiang, Henan 453007, China

Received:2013-04-27 Revised:2013-08-26 Online:2014-08-25 Published:2014-08-25

摘要/Abstract

摘要：

本文研制了一种超宽带车载探地雷达收发天线系统，采用半椭圆形状的偶极子天线形式和电阻加载的方法展宽了天线的工作带宽，使天线末端的反射明显减小.分析了背腔高度对天线电性能的影响，在保证天线电性能的前提下，采用的背腔高度仅为22mm.设计并制作了一套天线样机，并安装在探测车上，在电波暗室中对天线的电性能进行了测试，测试结果与仿真结果吻合良好，这表明该超宽带收发天线可以满足车载探地雷达系统的需求.

关键词: 探地雷达, 半椭圆偶极子天线, 电阻加载, 车载

Abstract:

A Ground Penetrating Radar (GPR) UWB transmitting/receiving antenna system mounted on a vehicle for the exploration of the subsurface is investigated in this paper.A dipole antenna with two half-elliptical-shape arms which are loaded by continuous resistive elements can broaden the bandwidth and improve the impulse radiation.The influence of the height of backed cavity to the antenna electrical performance is analyzed.Taking fully into account the antenna radiation efficiency and the waveform fidelity,a backed cavity with height of 22mm is adopted.The antenna system is manufactured and mounted on a vehicle.Then it is measured in an anechoic chamber.The results of simulations and measurements are compared together and good agreements are achieved.The results show that the UWB transmitting/receiving antenna system is suitable for vehicle-mounted GPR applications.

Key words: ground penetrating radar (GPR), half-ellipse antenna (HEA), resistive loading, vehicle

中图分类号:

TN957.2

李雪萍, 纪奕才, 卢伟, 方广有. 超宽带低背腔车载探地雷达收发天线的研究[J]. 电子学报, 2014, 42(8): 1577-1581.

LI Xue-ping, JI Yi-cai, LU Wei, FANG Guang-you. Research on an UWB Transmitting/Receiving Antenna with Shallow Backed Cavity Mounted on a Vehicle for GPR Application[J]. Acta Electronica Sinica, 2014, 42(8): 1577-1581.

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超宽带低背腔车载探地雷达收发天线的研究

Research on an UWB Transmitting/Receiving Antenna with Shallow Backed Cavity Mounted on a Vehicle for GPR Application

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