Magnetic Induction

Abstract

This chapter covers the physical background of magnetic induction and inductive coupling. The fundamental laws of electromagnetism are briefly reviewed and are applied to a basic inductive element: a piece of conductive wire. The terms self- and mutual inductance are defined and some basic inductor modelling networks are introduced. The final and most substantial part of this chapter is devoted to finite element modelling of coils to calculate their self-inductance, equivalent series resistance and mutual inductance with other coils. Examples illustrate some particular modelling techniques that have proven to be useful for inductive link calculations.