| 异形吉赫横电磁波室场强装置 |
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| 引用本文： | 汤仕平,蒋全兴,周忠元,景莘慧. 异形吉赫横电磁波室场强装置[J]. 计量学报, 2005, 26(2): 171-175 |
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| 作者姓名： | 汤仕平 蒋全兴 周忠元 景莘慧 |
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| 作者单位： | 1. 海军电磁兼容研究检测中心,上海,200235
2. 东南大学电磁兼容研究室,江苏,南京,210018 |
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| 摘 要： | 根据非对称矩形同轴线原理研制了宽带吉赫横电磁波室。采用独特的异形结构，扩展了小室内的有效使用空间。应用有限元法、有限积分技术和时域有限差分法对小室的特性阻抗、电压驻波比、场分布进行了仿真计算，解决了结构设计、输入转接头阻抗匹配、吸波材料的选型等关键技术。文中给出小室在10kHz～18GHz频率范围内的性能指标测试结果。该装置具有宽频带、大功率等特点，可用于高场强辐射抗扰度试验和场强校准。
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| 关 键 词： | 计量学 吉赫横电磁波室 异形 场强校准 |
| 文章编号： | 1000-1158(2005)02-0171-05 |
| 修稿时间： | 2004-04-08 |
Electromagnetic Field Generation Device of Irregular Profile Gigahertz TEM Cell |
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| TANG Shi-ping,JIANG Quan-xing,ZHOU Zhong-yuan,JING Shen-hui. Electromagnetic Field Generation Device of Irregular Profile Gigahertz TEM Cell[J]. Acta Metrologica Sinica, 2005, 26(2): 171-175 |
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| Authors: | TANG Shi-ping JIANG Quan-xing ZHOU Zhong-yuan JING Shen-hui |
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| Affiliation: | TANG Shi-ping~1,JIANG Quan-xing~2,ZHOU Zhong-yuan~2,JING Shen-hui~2 |
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| Abstract: | A gigahertz TEM cell is developed according to the principle of asymmetric rectangular coaxial line. Adoption of the unique irregular profile structure extends the effective space available in GTEM cell. The characteristic impedance, VSWR and field distribution of GTEM cell are calculated by using FEM, FIT and FDTD. Some key techniques in structure design, impedance match of input connector and choice of absorbed materials, are developed. The measured results of main performance for GTEM cell from 10 kHz to 18 GHz are given. The device possesses the characteristics of wide band and high power, etc. It may be used for the high field strength radiated electromagnetic field test and field strength calibration. |
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| Keywords: | Metrology Gigahertz TEM cell (GTEM cell) Irregular profile Field strength calibration |
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