Implementation of Horn Antenna's FDTD simulation using Matlab
GUI:
The field of antennas is vigorous
and dynamic and over the past fifty years, antenna technology has been an
indispensable partner of the communication revolution. There is a plethora of
antennas and antenna elements, many of which exhibit intricate configurations.
With the advent of super fast computers, numerical solution techniques are
adapted extensively to analyze the problems with different boundary conditions
and complex geometries. Over the past few years, there has been an increased
reliance on Finite Difference Time Domain (FDTD) and Finite Element Method
(FEM) for the characterization of electromagnetic problems.
Finite Difference Method is based on
the replacement of a continuous domain with a grid of discrete points (nodes),
the only ones at which the values of unknown quantities are to be computed. The
idea is to replace derivatives and integrals with ‘divided difference’
approximations obtained as functions of the nodal values. This can be
accomplished for instance, by using interpolating functions, which are not
defined in specific sub-domains but simply in the neighborhood of a node.
FDTD method is a time domain analysis. Here we
first we design a wave-guide and there after we just increase its broad side.
Our aim is to this simulation is plotting its electric field response with time
and how will it response in outside free space.
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