橫電磁波傳輸室電場(chǎng)縱向不均勻性分析
ANALYSIS OF LONGITUDINAL NONUNIFORMITY OF ELECTRIC FIELD DISTRIBUTION IN TEM CELLS
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摘要: 本文導(dǎo)出了橫電磁波傳輸室(TEM Cell)電場(chǎng)的縱向不均勻性表達(dá)式。數(shù)值結(jié)果與M.L.Crawford(1977)的實(shí)驗(yàn)值吻合較好。該結(jié)果可用于校正測(cè)量探頭位置偏差帶來(lái)的測(cè)量誤差,從而提高用TEM Cell進(jìn)行電磁兼容性試驗(yàn)和天線探頭校準(zhǔn)的測(cè)量精度。
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關(guān)鍵詞:
- 傳輸線; 橫電磁波傳輸室; 電磁兼容性測(cè)量
Abstract: By utilizing transmission line theory, practical expressions for the longitudinal nonuniformity of the electric field distribution in TEM cells are obtained. Numerical results agree well with experimental ones shown by M. L. Crawford (1977) at some frequencies. The results presented can be applied in correcting errors caused by probe location deviation in the logitudinal direction so as to reach higher accuracies in EMC measurements and probe calibration with TEM cells. -
M. L. Crawford, IEEE Trans. on EMC, EMC-16(1974)4, 189-195.[2]蔡小丁,李家樾,北京郵電學(xué)院學(xué)報(bào),11(1988)2,77.[3]Xiao-Ding Cai, Jia-Yue Li, Proc. IEE, Part H, 136(1989) 3, 191-194.[4]蔡小丁,李家樾,北京郵電學(xué)院學(xué)報(bào),12(1989)3,17.[5]Xiao-Ding Cai, IEEE Trans. on EMC, EMC-31(1989)3, 209-217.[6]M. L. Crawford, J. L. Workman, C. Thomas, IEEE Trans. on IM, IM-26(1977)3, 225-230.[7]R. E.柯林,微波工程基礎(chǔ),人民郵電出版社,1981年,第82-87頁(yè). -
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