| 一种电阻加载的超宽带TEM 喇叭天线 |
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| 引用本文： | 邵金进,卢,伟,纪奕才,方广有,阴和俊.一种电阻加载的超宽带TEM 喇叭天线[J].微波学报,2014,30(2):6-9. |
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| 作者姓名： | 邵金进 卢 伟 纪奕才 方广有 阴和俊 |
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| 作者单位： | (1. 中国科学院大学,北京100049; 2. 中国科学院电磁辐射与探测技术重点实验室,北京100190) |
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| 基金项目： | :国家高技术研究发展计划(2012AA061403) |
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| 摘 要： | 设计了一种基于电阻加载的超宽带TEM 喇叭天线。该天线由两片平滑渐变的金属曲面组成,通过在
馈电端引入微带渐变馈电结构便于同轴线馈电,同时在天线辐射片末端引入电阻加载技术消除天线口面与自由空
间失配引起的反射波能量,有效地改善低频特性,拓展带宽。在理论分析的基础上设计并制作了一副天线样机,实
验测试表明:在0. 1-5GHz 频率范围内,VSWR<2。该天线具有约50:1 的阻抗带宽,并且在0. 75-5GHz 频率范围内
具有良好传输特性。
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| 关 键 词： | 超宽带 脉冲 加载 天线 |
A Resistor loaded UWB TEM Horn Antenna |
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| SHAO Jin Jin,LU Wei,Ji Yi Cai,FANG Guang You,YIN He Jun.A Resistor loaded UWB TEM Horn Antenna[J].Journal of Microwaves,2014,30(2):6-9. |
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| Authors: | SHAO Jin Jin LU Wei Ji Yi Cai FANG Guang You YIN He Jun |
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| Institution: | (1. University of the Chinese Academy of Sciences, Beijing 100049, China;
2. Key Laboratory of Electromagnetic Radiation and Sensing Technology, Chinese Academy of Sciences, Beijing 100190, China) |
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| Abstract: | A resistor loaded ultra wideband (UWB) TEM horn antenna is presented, which consists of two smoothly
tapered metal sheets. A microstrip feeding network is adopted for the simple coaxial cable and the resistive loading technology
is introduced to eliminate the reflected wave caused by the impedance mismatching between the antenna aperture and free
space, which effectively improves the low frequency characteristic and expands the bandwidth. Based on the theoretical anal
ysis, one prototype of the antenna is designed and fabricated, the experimental results show that this antenna has a 50:1 im
pedance bandwidth in the full band range from 0. 1GHz to 5GHz for VSWR<2 and good transmission characteristics over the
frequency range from 0. 75GHz to 5GHz. |
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| Keywords: | UWB pulse loading antenna |
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