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Antenna & Wave PropagationAntenna Impedance

For maximum power transfer between a transmission line and an antenna at a single frequency, the antenna input impedance should ideally be?

  • AMatched to the line impedance
  • BZero
  • CInfinite
  • DPurely capacitive regardless of the line
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Correct Answer: A. Matched to the line impedance
Explanation: Impedance matching minimizes reflection and permits efficient transfer of power from the line to the antenna.
Reference: Standard antenna and wave propagation: antenna impedance
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