PCB Design And EMC Analysis Of Embedded MODEM

High development in electronic devices today, people on the electronic equipment workingstability also have higher requirements. In the design of electronic equipment, electromagneticcompatibility problems can not be ignored, good electromagnetic compatibility is the normaloperation of the equipment support. If the product is formed after the discovery of electromagneticcompatibility problems and try to solve it, both in theory and practice will be very difficult. So inthe product before forming if the electromagnetic compatibility can be very good to solveequipment problems will undoubtedly save a lot of time and energy, so the PCB board of electronicequipment, printed circuit board EMC has important research significance analysis.The paper firstly introduces the design of PCB board and discusses the basic theory ofelectromagnetic compatibility problem of circuit board, the printed circuit board causeelectromagnetic compatibility issues, and carries out theoretical research. In Nanchang a companyinvolved in the project and design for embedded Modem transceiver railway signal, which gives thedesign method and the software of the system, and on the basis of the analysis of the PCB board ofelectromagnetic compatibility. The PCB board of the electromagnetic compatibility issues, thepaper also innovative use of Mentor Graphics ’s Hyperlynx software to model and simulate theembedded Modem, the success of the detailed analysis of the electromagnetic compatibilityproblem of PCB exist, and for the typical clock network interference and crosstalk of the twoelectromagnetic compatibility problem put forward reasonable and effective the solution, this paperputs forward some PCB board for electromagnetic compatibility design principles. The proposedsolution using the software simulation, the reasonable conclusion, before the real practice achievethe expected effect.