Answers are grounded in this paper and cite their sources.
This article presents a novel distributed hexagonal power delivery network (PDN) absorber designed to suppress simultaneous switching noises (SSNs) and electromagnetic interference (EMI) in printed circuit boards (PCBs). The proposed hexagonal absorber cell allows for periodic deployment across the PDN. Adesign methodology is developed to match the input impedance of the PDN absorber unit to the radial port impedance of incident cylindrical waves, enabling high absorption efficiency at the targeted frequency. The fabricated PDN absorber unit demonstrates an 80% absorption bandwidth from 4.76 to 5.43GHz. Comparative analysis against mushroom-type electromagnetic bandgap (EBG) structure and bare-plane reference confirms that the proposed hexagonal absorber cell offers superior suppression of both self and transfer impedance, as well as radiated EMI noises, validating its effectiveness in high-frequency PDN noise mitigation.
No takes yet. Share an insight, caveat, or question.
Huang et al. (2026) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: