1. The plane wave in an anisotropic magnetic medium

Although unworkable in practice, the plane wave remains a convenient concept for studying propagation phenomena in various media.

This context justifies a specific paragraph, subdivided into four parts, in which a number of calculations closely related to plane wave propagation in anisotropic magnetic media will be undertaken.

In the chronological progression of the text, we will successively examine :

• the general properties of plane waves (see § 1.1 );

• field carrier waves with circular...