Define Radiation pattern.

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9. Define Radiation pattern.

The radiation pattern of an antenna is a plot of the magnitude of the far-zone field strength versus position around the antenna, at a fixed distance from the antenna.

Thus the radiation pattern can be plotted from the pattern function Fθ (θ,φ) or Fφ(θ,φ), versus either the angle θ (for an elevation plane pattern) or the angle φ (for an azimuthal plane pattern). The choice of plotting either Fθ or Fφ is dependent on the polarization of the antenna.

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