The Simulation And Design Method Of Novel Artificial Periodic Structure And Its Application In Electromagnetic Protection

With the rapid development in high-speed integrated electronic systems,the integrated circuit has shown its high growth of integration and complexity.The system characteristic size and voltage decrease while the clock frequency and switching speed are getting faster.The layout of all the system is much more complicated,thus it is a big challenge to reconcile the diversification of system function,the low-pass transmission of digital-analog integration signal and the noise suppression in complex electromagnetic environment.Especially the noise suppression in complex electromagnetic environment has been a hot topic in recent years.In this paper,we firstly introduce an extended adaptive integral method to the analysis of the PCB level complex electromagnetic environment.A series of model structures are used to verify the numerical method and finally this method has been applied to the simulation of the periodic electromagnetic bandgap(EBG)for its noise suppression.Meanwhile,we have analyzed the principle of the EBG structure.Combined with the complementary split ring resonator(CSRR)structure,a new method for ultra-wideband noise suppression EBG structure design is proposed These structures can be used for mitigating the noise with increased bandwidth and large isolation level and are verified by both simulation and measurement.We finally analyze the signal integrity of the proposed structure.