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Localized EBG Structure with DeCaps for Ultra-wide Suppression of Power Plane Noise
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- Authors
- Jong-Hwa Kwon, Sang-Il Kwak, Dong-Uk Sim
- Issue Date
- 2011-03
- Citation
- Progress in Electromagnetics Research Symposium (PIERS) in Marrakesh, pp.1474-1477
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- The uni-planar electromagnetic bandgap (UC-EBG) structure is well known as a promising solution for suppressing power noise up to the GHz frequency range in high-speed digital systems. However, if a typical UC-EBG were adopted for the power and ground planes, the discontinuous reference plane would most likely degrade the high-speed signals passing over the EBG patterns because of the discontinuities of the etched reference plane. Also, EBG structures have a limitation in terms of the expansion of the lower bandgap frequency due to their physical size. In this paper, a localized EBG-patterned board with decoupling capacitors is proposed as a means of both suppressing noise propagation from extremely low frequencies and minimizing the effects of the discontinuous reference plane.
- KSP Keywords
- EBG structure, Electromagnetic band gap(EBG), Frequency Range, Ground Plane(GP), High-speed, Low frequency, Noise propagation, Power plane, Speed signals, decoupling capacitor, digital system