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异形吉赫横电磁波室场强装置 被引量：1

Electromagnetic Field Generation Device of Irregular Profile Gigahertz TEM Cell
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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。 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.
作者 汤仕平 蒋全兴 周忠元 景莘慧
机构地区 海军电磁兼容研究检测中心 东南大学电磁兼容研究室
出处 《计量学报》 EI CSCD 北大核心 2005年第2期171-175,共5页 Acta Metrologica Sinica
关键词 计量学 吉赫横电磁波室 异形 场强校准 Metrology Gigahertz TEM cell (GTEM cell) Irregular profile Field strength calibration
分类号 TB973 [机械工程—测试计量技术及仪器]
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  • 1[3]H.Garn, M.Buchmayr, W.Mullner,"Precise Calibration of Electric Field Sensors for Radiated-Susceptibility Testing",Frequenz 53(1999) 9-10,pp189-194.
  • 2[4]IEEE Std.1309-1996, "IEEE Standard for calibration of electromagnetic field sensors and probes,excluding antennas,from 9kHz to 40GHz".
  • 3[5]UKAS publication ref: LAB 34(DRAFT), "The Expression of Uncertainty in EMC Testing",Draft Edition 3.January 2002.

共引文献2

同被引文献14

  • 1Hansen D, Wilson P, Koenigstein D, et al. A broadband alternative EMC test chamber based on a TEM cell anechoic-chamber Hybrid approach [ C ]//Proc of the Int Symp on EMC, Nagoya, Japan, 1989, 133- 137.
  • 2Groh C, Karst J P, Koch M, et al. TEM Waveguides for EMC Measurements[ J]. IEEE Trans on EMC, 1999, 41 (4) : 440 -446.
  • 3De Leo R, Pierantoni L, Rozzi T, et al. Dipole excitation and scattering by spherical objects in GTEM cell [ J ]. IEEE Transactions on Microwave Theory and Techniques Part:l -2,1994,42(9) :1700 - 1708.
  • 4De Leo R, Schiavoni A. FDTD evaluation of scattering by metallic objects in GTEM cells [ J ]. IEE Proceedings Science, Measurement and Technology, 1994, 141 (4): 287 - 292.
  • 5Karst J P, Garbe H. Characterization of loaded TEM- waveguides using time-domain reflectometry [ C ]//IEEE International Symposium on Electromagnetic Compatibility, Seattle, WA, 1999, 1: 127- 132.
  • 6Ishigami S, Harima K, Yamanaka Y. Estimation of E- field distribution in a loaded GTEM cell [ C ]//IEEE International Symposium on Electromagnetic Compatibility, Montreal Que, 2001, 1 : 129 - 134.
  • 7Zellerhoff M, Hannemann J, Klinkenbusch L. Electromagnetic coupling between a GTEM-cell and a device under test: a hybrid modal-analysis & method-of- moments approach [ J ]. IEEE International Symposium on Antennas and Propagation Society, 2002, 3 (3) : 286 - 289.
  • 8Pouhe D, Monich G. On the Interplay Between the Equipment Under Test and TEM Cells [ J ]. IEEE Transactions on Electromagnetic Compatibility, 2008, 50 (1): 3-12.
  • 9Ifong W, Ishigami S, Gotoh K, et al. Effect on electric field of foam block in GTEM cell [ C ]//IEEE International Symposium on Electromagnetic Compatibility, Austin, TX, 2009, 233- 237.
  • 10Malaric K, Bartolic J, Modlic B. Absorber and resistor contribution in the GTEM-celI[ C]//IEEE International Symposium on Electromagnetic Compatibility, Washington, DC, 2000, 2:891 -896.

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计量学报
2005年 第2期

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