Bandwidth enhancement of planar EBG structure using dissipative edge termination

In this paper, the bandwidth enhancement of planar type electromagnetic bandgap (EBG) structure using dissipative edge termination technique is investigated. Two termination schemes are presented; first with the termination elements along edges of every single EBG patches and second with termination along edges of the whole power plane. In the first case, simulations show that, both lower and upper cutoff frequency is improved for wideband suppression of simultaneous switching noise (SSN). For the second one, lower cutoff frequency is shifted downward from 800MHz of common planar EBG structure to 13MHz. which results in relative bandwidth of 63% higher than the commonly used EBGs. For fast simulation and validation of full-wave simulation, the circuit model of these structures is developed and simulation results are also presented.