摘要
本文对屏蔽层横切窄缝的屏蔽双绞线的电磁泄漏进行了定量研究。分析了切缝屏蔽双绞线的电磁泄漏机制,并把其等效为级联网络。采用混合方法,即传输线链参方法、有限元方法和亚网格FDTD方法相结合,对切缝屏蔽双绞线的电磁泄漏进行了模拟分析。结果表明,在500MHz以下的频率内,即使屏蔽层被切断,屏蔽双绞线泄漏的能量最多不超过1%。
This paper propose a quantitative analysis on the electromagnetic leakage from a shielded-twist-pair with a transverse slot. The mechanism of electromagnetic leakage is analyzed, and then the slotted shielded-twist-pair is regarded as a cascaded network. By applying the hybrid-method, which is the combination of the chain-parameter-equation, the finite-element-method and the subcell-FDTD-method, the electromagnetic leakage from the transverse slot on the shield of the twist-pair are simulated. The results show that, below the frequency of 500MHz, the leaked energy from the slotted shielded-twist-pair is no more than 1% even if the shield layer is cut off.
出处
《电子与信息学报》
EI
CSCD
北大核心
2007年第5期1243-1246,共4页
Journal of Electronics & Information Technology
