Substrate Electromagnetic Coupling In The System Chip, And Its Inhibition

This dissertation, supported by the Specialized Research Fund for the DoctoralProgram of Higher Education and by the key project of Chinese Ministry ofEducation, has made a specialized analysis of the substrate electromagnetic (EM)coupling problem in system on chip (SOC) and its influence on the work performanceof the system. The dissertation has also introduced the present methods to suppresssubstrate EM coupling. And based on this to realize the purpose of decreasing signalcrosstalk in SOC.In introduction, the dissertation formulates the backgroud and properties of SOC,the existing electromagnetic compatibility (EMC) problem of SOC, the developmentsketch of the EMC project in the worldwide, and the author's chief work.Section two introduces some basic conceptions which are relevant to the researchof the project.Section three presents some transmission models of substrate EM coupling inSOC, and gives a theory analysis of the character of each model. We also introducesome measures to suppress substrate EM coupling in detail in this section.And section four mainly introduces the author's work of the project. The workbasically includes two parts: In the first part, we have designed a novel interconnecttransmission line (PS-FGCPW). Based on the study of the character of the EMcoupling problem in SOC and of the present isolation measures. And theory analysisshows that the novel transmission line is with better transmission performance andhigh EM isolation performance. In the second part, we make a further development ofprevious work. Considering the structure character, the dissertation proposes a novellow pass filter and gives an analysis of it. Theoretical analysis shows that the novelfilter combines both of the virtues of PS-FGCPW transmission line and sinusoidalreactance load filter. Furthermore, the filter also has good slow-wave effect and thisproperty is useful for the design of high-performance slow-wave component.Based on the parts mentioned above, the dissertation has made a summary aboutthe research work of the project.The contribution of the dissertation lies in, presenting a novel interconnecttransmission line with high isolation performance to solve the substrate EM couplingproblem in SOC, proposing, analyzing, and designing a novel low pass filter whichsuits the practical applications. The dissertation puts a base for future research andcircuit design to our project team.