The short dipole approximation is a simplification used in electromagnetism that considers a dipole antenna as having a very small physical length compared to the wavelength of the electromagnetic waves it emits or receives. This assumption allows for the mathematical modeling of the dipole's radiation pattern and impedance, simplifying calculations by treating the dipole as an ideal point source rather than a finite-sized object. It is especially relevant in analyzing the performance and behavior of dipole antennas in radio frequency applications.
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