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Question 388

What is the feed point impedance of an end-fed half-wave antenna?

  1. Very low
  2. Approximately 50 ohms
  3. Approximately 300 ohms
  4. Very highBonne réponse

Explication

At the end of a resonant half-wave element the current is near zero while the voltage is at its maximum, and impedance is voltage divided by current, so the end feed point impedance is very high, typically a few thousand ohms.

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Question 388: What is the feed point impedance of an end-fed half-wave… · FCC General Class (Element 3) · Questena