| 引用本文: | 赵琳,迟永钢,李红梅.可用于生命探测雷达的TEM喇叭天线设计[J].哈尔滨工业大学学报,2013,45(5):35.DOI:10.11918/j.issn.0367-6234.2013.05.007 |
| ZHAO Lin,CHI Yonggang,LI Hongmei.Design of TEM horn antenna in human being detection radar[J].Journal of Harbin Institute of Technology,2013,45(5):35.DOI:10.11918/j.issn.0367-6234.2013.05.007 |
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| 摘要: |
| 设计了一种可应用于超宽谱生命探测雷达的TEM喇叭天线．采用电磁仿真软件CST MICROWAVE STUDIO对TEM喇叭天线进行仿真研究,讨论了天线结构参数对天线通频带的影响,制作了天线样机,并在微波暗室内对其进行了测试．仿真和实验结果表明:设计出的天线在0.71～3.25 GHz的反射系数小于-10 dB,带宽比为4.6∶1,在2.4 GHz频点处天线的前后比大于14.0 dB,天线在通频带内的增益均大于9.0 dBi．设计出的天线具有超宽带、高增益和定向辐射性强的特点． |
| 关键词: 生命探测 TEM喇叭 超宽带雷达 高增益 |
| DOI：10.11918/j.issn.0367-6234.2013.05.007 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(61071035). |
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| Design of TEM horn antenna in human being detection radar |
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ZHAO Lin1, CHI Yonggang1, LI Hongmei2
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(1. Communication Research Center, Harbin Institute of Technology, 150001 Harbin, China;2. Microwave and Antenna Research Center, Harbin Institute of Technology, 150001 Harbin, China)
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| Abstract: |
| A TEM horn antenna applied to ultra-wideband radar for human being detection is designed. The proposed TEM horn antenna is simulated by CST MICROWAVE STUDIO software. And the influences of antenna structural parameters on antenna pass band are discussed and analyzed. Finally, the prototype of the proposed antenna is manufactured and measured in the microwave anechoic chamber. The simulation and experimental results show that the working frequency of the proposed antenna is from 0.71 GHz to 3.25 GHz with reflection coefficient less than -10 dB (bandwidth ratio 4.6∶1). The antenna front-to-back ratio is greater than 14.0 dB at 2.4 GHz, and the antenna gain is greater than 9.0 dBi within the pass band. So the proposed antenna has characteristics of ultra-band, high gain, and strong directional radiation. |
| Key words: human being detection TEM horn ultra-wideband radar high gain
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