Dual-band electromagnetic band gap structure for noise isolation in mixed signal SiP

摘要

A compact dual-band electromagnetic band-gap (EBG) structure is proposed. It is shown through numerical simulation using 3D full wave solver that by adding a slit to the classical mushroom shape an extra resonance is introduced and thus dual-band EBG structures can be built by cascading these new elements. It is also demonstrated that this novel approach can be used to isolate noise in a system such as a dual band transceiver integrated into a mixed signal system in a package. Finally, equivalent circuits have been established to aid the design process.