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Antenna & Wave PropagationDipole Antennas

The approximate total physical length of an ideal thin half-wave dipole in free space is?

  • Alambda/4
  • Blambda/2
  • Clambda
  • D2 lambda
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Correct Answer: B. lambda/2
Explanation: A half-wave dipole is approximately one-half wavelength long; practical resonant lengths are slightly shorter due to end effects.
Reference: Standard antenna and wave propagation: dipole antennas
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