Abstract
Electromagnetic bandgap (EBG) structures consisting of fractal high impedance topologies and effective bridges are proposed and employed for ultra-wideband (UWB) ground bounce noise (GBN) suppression in power and ground plane pairs. These structures have shown good performance. For the first design utilizing fractal high impedance topology with one iteration and meander lines, it provides −49 dB noise suppression from 202 MHz to 20 GHz. Both simulated and measured results are presented to verify the performance. Furthermore, the GBN suppression behaviors of topologies with different iterations have been studied, and the impact of the power plane with the first design on the signal integrity has also been investigated.
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