Transformación de campo cercano a campo lejano utilizando corrientes equivalentes y algoritmos genéticos
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A method for computing far-field antenna
patterns from planar near-field samples is presented.
The method, based on the equivalence principle, replaces
the antenna under test by a set of equivalent magnetic
currents (EMC), and a binary micro genetic algorithm is
used to optimise the amplitudes of the EMC from the
near-field data. A second approach, using an equivalent
model for the source made up of electric short dipoles, is
also analysed. From the optimised equivalent model, the
antenna far-field pattern can be easily computed.
Numerical results using synthetic near-field data are
reported and discussed.
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