An improved electromagnetic band gap structure for overcoming the simultaneous switching noise

摘要

In order to decrease the signal integrity problems caused by Simultaneous Switching Noise (SSN) in the high speed circuit, it has designed an improved planar electromagnetic band-gap (EBG) structure, which based on metamaterials. We want to model and simulate the stop-band characteristics by using the electromagnetic simulation software HFSS. The results show that, compared with the traditional UC-EBG structure, when the inhibition of depth is -30 dB, the bandwidth of this new type EBG of inhibition is 3.7 GHz, the upper cut-off frequency is 4.7 GHz, the lower cut-off frequency is 1 GHz, relative bandwidth is 130%. Compared with the traditional UC-EBG structure relative bandwidth increase 15%.