The length of a resonant antenna dipole is
- lambda
- lambda/2
- lambda/4
Explanation
A simple resonant dipole is a half-wave antenna, so its physical length is one half-wavelength (lambda/2) at the operating frequency. Each arm is therefore a quarter-wavelength, giving the correct current and voltage distribution for resonance. A full-wavelength element would not present the resistive feed impedance of a resonant dipole.
Jordi asking:
this is wrong in this website is has the same question with the correct answer being "lambda/2" .
Community Comments (3)
S
Sokeros Posts: 13 13.05.2021 / 23:43
A resonant antenna, or resonant-length antenna, is an antenna whose length is a quarter of a wavelength, or multiples thereof, long. In this case, the antenna is purely resistive and its reactance is zero, and hence the maximum amount of current flows through the antenna.
J
Jordi Posts: 198 14.05.2021 / 21:22
Υeah but there is exactly the same question here but with a labmda/2 answer.
J
Jordi Posts: 198 14.05.2021 / 21:22
Υeah but there is exactly the same question here but with a labmda/2 answer.
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