强激光与粒子束, 2005, 17 (3): 422, 网络出版: 2006-04-28   

微带线电路板端口对入射电磁波的电压响应

Coupling of external electromagnetic field to printed circuit board trace
作者单位
清华大学微波与数字通信技术国家重点实验室,北京,100084
摘要
在考虑电磁波与电子设备的耦合时,屏蔽腔中电路板端口对入射电磁波的电压响应是一个重要的参数.分别计算了微带线电路板端口在自由空间和在屏蔽腔内这两种不同情况下的电压响应,以及屏蔽腔内耦合系数的变化.对所得结果进行了比较分析,结果表明,在自由空间时,响应电压频谱为连续的变化,而在屏蔽腔内时,只有在本征模的频率处才会激励起端口电压,频谱分布变为分立的.当屏蔽腔上开有窄缝时,窄缝方向和入射场极化方向对激励起来的端口电压都有影响,而电场极化方向和微带线方向之间的关系,是决定端口激励电压大小的关键因素.
Abstract
The voltage response of a printed circuit board (PCB) in a metallic shielding enclosure excited by an external electromagnetic field is an important factor when considering the coupling of an external electromagnetic field to electronic systems. In this paper, the voltage response of PCB excited by an external source is calculated under two conditions: in free space and in the shielding enclosure. The frequency spectrum of voltage is calculated. When the PCB is put into the cavity with a long slot, some cases are considered including different electric field directions of incident source and different slot shapes. The variance of coupling coefficient is also calculated.
参考文献

[1] Mendez H A. Shielding theory of enclosures with apertures[J]. IEEE Trans Electromagn Compat, 1978, 20(2):296-303.

[2] Li M, Nuebel J, Drewniak J L, et al. EMI from cavity modes of shielding enclosures-FDTD modeling and measurements[J]. IEEE Trans Electromagn Compat, 2000, 42(1):29-38.

[3] Audone B, Balma M. Shielding effectiveness of apertures in rectangular cavities[J]. IEEE Trans Electromagn Compat, 1989, 31(1):102-106.

[4] Harrington R F, Mautz J R. Characteristic modes for aperture problems[J]. IEEE Trans Microwave Theory Tech, 1985, 33(6):500-505.

[5] 王建国,屈华民,范如玉,等. 孔洞厚度对高功率微波脉冲耦合的影响[J]. 强激光与粒子束,1994,6(2):282-286.
Wang J G, Qu H M, Fan R Y, et al.Effects of slot depth on couplings of high power microwave pulses. High Power Laser and Particle Beams, 1994,6(2):282-286.

[6] 陈修桥,张建华,胡以华. 电磁脉冲与窄缝腔体耦合共振特性分析[J]. 强激光与粒子束,2003,15(5): 481-484.
Cheng X Q, Zhang J H, Hu Y H. Analysis on resonant characteristic of electromagnetic pulse coupling into narrow slot and cavity with slot. High Power Laser and Particle Beams, 2003,15(5):481-484.

[7] 王建国,刘国治,周金山. 微波孔缝线性耦合函数的研究[J]. 强激光与粒子束,2003,15(11):1093-1099.
Wang J G, Liu G Z , Zhou J S. Investigations on function for linear coupling of microwaves into slots. High Power Laser and Particle Beams, 2003,15(11):1093-1099.

[8] Bernardi P, Cicchetti R. Response of a planar microstrip line excited by an external electromagnetic field[J]. IEEE Trans Electromagn Compat, 1990,32(2):98-105.

[9] Leone M, Singer H L. On the coupling of an external electromagnetic field to a printed circuit board trace[J]. IEEE Trans Electromagn Compat, 1999,41(4):418-424.

[10] Wallyn W, Zutter D D. Modeling the shielding effectiveness and resonances of metallic shielding enclosures loaded with PCB's[C]. IEEE Int Symp Electromagn Compat.Montreal, Que, Canada:Institute of Electrical and Electronics Engineers Inc.,2001.691-696.

范颖鹏, 杜正伟, 龚克, 张肃. 微带线电路板端口对入射电磁波的电压响应[J]. 强激光与粒子束, 2005, 17(3): 422. FAN Ying-peng, DU Zheng-wei, GONG Ke, ZHANG Su. Coupling of external electromagnetic field to printed circuit board trace[J]. High Power Laser and Particle Beams, 2005, 17(3): 422.

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