In this chapter, some EMC basics are explained - in particular, how interferences couple from their sources along wires or via fields to the victims (sinks), where and how they are generated, how victims are influenced by electromagnetic interference (EMI) and how countermeasures generally work; special countermeasures are discussed in later chapters. For a deeper understanding, textbooks dedicated to the fundamentals of EMC or even electrodynamics are recommended, e.g. [64] from a theoretical perspective, [10,19,203] from a mathematical/numerical perspective and [174,188] from a practical perspective. Together with EMC, signal integrity and power integrity (SIPI) are also considered. It is important to consider EMC early in the development process. We will pick up the design flow with EMC management, EMC analysis and EMC control in subsequent chapters - in particular, Chapters 6 and 7. We lay foundations for simulation in

Chapter Contents:

• 4.1 Maxwell's equations
• 4.2 Coupling paths
• 4.2.1 Line coupling
• 4.2.2 Electric field coupling
• 4.2.3 Magnetic field coupling
• 4.2.4 Electromagnetic field coupling
• 4.3 Field coupling into wires
• 4.4 Countermeasures against coupling
• 4.4.1 Filters
• 4.4.2 Shields
• 4.5 Sources
• 4.6 Sinks
• 4.7 Electrostatic discharge
• 4.8 Signal and power integrity
• 4.8.1 Relation between frequency and time domain
• 4.8.2 Transmission lines
• 4.8.3 Signal integrity
• 4.8.4 Power integrity

Inspec keywords: electrodynamics; electromagnetic interference; electromagnetic compatibility

Other keywords: signal integrity; electromagnetic interference; electrodynamic; EMC control; EMC management; power integrity; EMC analysis; development process

Subjects: Electromagnetic compatibility and interference