This section explores the fundamentals of Electromagnetic Interference (EMI), encompassing both emissions and susceptibility. These two factors constitute the core components of EMC. A grasp of transmission line theory is essential for understanding critical EMC aspects such as near-field coupling and far-field radiation.

They are organised principally by sector:

RF emissions

LF emissions

RF and AF susceptibility

Transient susceptibility

Then in the Principles section, the following subjects are covered:

Disturbance sources

Common vs differential mode

Transmission line behaviour

Understanding the concept of coupling mechanisms is essential for EMC engineering, therefore, the following subjects are discussed in detail:

Common impedance coupling

Near-field coupling

Far-field coupling

Accidental antenna coupling

Reciprocity