Waveguide
A rectangular, circular, or elliptical metal pipe designed to transport electromagnetic waves through its interior.
Microwave
a waveguide normally consists of a hollow metallic conductor, usually rectangular, elliptical, or circular in cross section. This type of waveguide may, under certain conditions, contain a solid or gaseous dielectric material.
Optics
A waveguide used as a long transmission line consists of a solid dielectric filament (optical fiber), usually circular in cross section.
In integrated optical circuits an optical waveguide may consist of a thin dielectric film.
Radio Frequency
Ionized layers of the stratosphere and refractive surfaces of the troposphere may also act as a waveguide.
See also: Transverse Electric Mode, Transverse Magnetic Mode, Waveguide Mode of Operation, Waveguide Post, Waveguide Screw.
Subjects: Electromagnetism