In
physics
Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...
and
mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
, time domain electromagnetics refers to one of two general groups of techniques (in mathematics, often called ''ansätze'') that describe
electromagnetic wave
In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visib ...
motion. In contrast with
frequency domain electromagnetics, which are based on the
Fourier or
Laplace transform
In mathematics, the Laplace transform, named after its discoverer Pierre-Simon Laplace (), is an integral transform
In mathematics, an integral transform maps a function from its original function space into another function space via integra ...
, time domain keeps time as an explicit
independent variable
Dependent and independent variables are variables in mathematical modeling, statistical modeling and experimental sciences. Dependent variables receive this name because, in an experiment, their values are studied under the supposition or demand ...
in descriptive equations or
wave motion
In physics, mathematics, and related fields, a wave is a propagating dynamic disturbance (change from equilibrium) of one or more quantities. Waves can be periodic, in which case those quantities oscillate repeatedly about an equilibrium (re ...
.
References
* S. M. Rao, E. K. Miller
Time Domain Electromagnetics Academic Press: San Diego etc., 1999.
External links
The Virtual Institute for Nonlinear Optics (VINO) a research collaboration devoted to the investigation of X-waves and conical waves in general
page at th
nlo.phys.uniroma1.it website.
Electrodynamics
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