1. Wideband Power/Ground Noise Suppression in Low-Loss Glass Interposers Using a Double-Sided Electromagnetic Bandgap Structure
- Author
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Youngwoo Kim, Pulugurtha Markondeya Raj, Gapyeol Park, Kyungjun Cho, Rao Tummala, and Joungho Kim
- Subjects
Coupling ,Physics ,Radiation ,business.industry ,Band gap ,020206 networking & telecommunications ,02 engineering and technology ,Stopband ,Condensed Matter Physics ,Power (physics) ,Optics ,Dispersion (optics) ,0202 electrical engineering, electronic engineering, information engineering ,Interposer ,Ground noise ,Electrical and Electronic Engineering ,Wideband ,business - Abstract
In this article, we propose a double-sided electromagnetic bandgap (DS-EBG) structure for glass interposers (GIs) with low substrate loss to suppress power/ground noise. For the first time, we validated wideband power/ground noise suppression in the GI using the proposed DS-EBG structure based on dispersion analysis and experimental verification. We experimentally verified that the proposed DS-EBG structure achieved the power/ground noise suppression (below −40 dB) between 2.5 and 8.9 GHz in the GI. Derived stopband edges, $f_{L}$ and $f_{U}$ based on the dispersion analysis, and 3-D electromagnetic (EM) simulation showed a good correlation with measurements. The effectiveness of the proposed DS-EBG structure on the power/ground noise suppression is verified by analyzing noise propagation in the power distribution network and coupling to the GI channel. Using the 3-D EM simulation, we verified that the proposed DS-EBG structure suppressed the power/ground noise coupling and improved the eye diagram of the GI channel. Finally, we propose a design methodology to broaden the isolation bandgap or miniaturize the dimensions based on the dispersion analysis.
- Published
- 2020