A Miniaturized Electromagnetic Bandgap Power Distribution Network Using Dual Defected Ground Structures for Wideband Noise Suppression in High-Speed Electronic Boards and Its Inverse Design

Key Points

• The aim is to develop a miniaturized power distribution network that effectively suppresses wideband noise in high-speed electronic boards.
• Proposed a dual defected ground structure (DDGS) based electromagnetic bandgap (EBG) design.
• Analyzed design variables affecting noise suppression bandwidth.
• Developed an inverse design framework using artificial neural networks and genetic algorithms.
• Implemented hybrid unit cell coupling for broadband noise attenuation.
• Achieved 32.5% area reduction compared to traditional EBG structures while maintaining low-frequency cutoff performance.
• Inverse design method demonstrated a 99.7% reduction in computation time with high design accuracy.