Proceedings ArticleDOI
Analysis of noise coupling from printed circuit board to shielding enclosure
Zhenwei Yu,Xiaopeng Dong,Jason A. Mix,Kevin Slattery,Jun Fan +4 more
- pp 159-162
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TLDR
In this paper, the cavity model and the segmentation technique were used to investigate the noise coupling mechanism from a printed circuit board (PCB) inside a compact-size enclosure, which is an effective path for high-speed digital noise to be coupled to the RF receivers inside the same enclosure.Abstract:
The power distribution network in a printed circuit board (PCB) inside a compact-size enclosure is an effective path for high-speed digital noise to be coupled to the RF receivers inside the same enclosure, causing RF interference (RFI) issues. This noise coupling mechanism from PCB to shielding enclosure is investigated in this paper using the cavity model and the segmentation technique. In this approach, the structure of an enclosure with a PCB inside is divided into cavities with both horizontal and vertical connections. Modeling result agrees well with full wave simulations, and the simulation time is considerably reduced. Furthermore, the relationship among the noise coupling, the PCB-related resonances, and the enclosure-related resonances is studied as well.read more
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Journal ArticleDOI
Modeling Electromagnetic Field Coupling Through Apertures for Radio-Frequency Interference Applications
Liehui Ren,Jun Fan +1 more
TL;DR: In this paper, a segmentation method, together with impedance network representation, was employed to divide the enclosure EMI problem into exterior and interior problems, and the impedance network for the exterior domain was rigorously formulated using a method of moments solution for mixed potential integral equations.
References
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