Question

The condition which will satisfy the dimensions of the waveguide is

Answer 1

Metal pipe waveguides are often used to guide electromagnetic waves. The most common waveguides have rectangular cross-sections and so are well suited for the exploration of electrodynamic fields that depend on three dimensions. Although we confine ourselves to a rectangular cross-section and hence Cartesian coordinates, the classification of waveguide modes and the general approach used here are equally applicable to other geometries, for example to waveguides of circular cross-section.