3. Design principles

3.1 Review of Maxwell's equations (general formulation)

Designing an antenna involves building a structure whose radiation will have the desired characteristics (fine beam, omnidirectional...). We therefore need to know the mechanisms which, for example, enable us to obtain a directional antenna from a certain distribution of currents distributed over a particular surface (equation (42) ). To understand these mechanisms, we need to manipulate Maxwell's equations in the most general formalism possible. A general and compact formulation then allows the use of formal calculation tools to rapidly solve very complex...