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For a center fed short antenna, current distribution is _____ at center and ____ at ends.

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For a center fed short antenna, current distribution is _____ at center and ____ at ends.

(a) Low, high

(b) High, high

(c) Low, low

(d) High, low

I have been asked this question in an international level competition.

The above asked question is from Radiation Pattern in division Antenna Parameters of Antennas

1 Answer

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Correct answer is (d) High, low

The best I can explain: The current distribution follows a triangular pattern. At the center it is maximum and nearly zero at ends.  Amount of power radiates will depend on the wavelength λ. For vertical antennas, with wavelength n\(\frac{\lambda}{2}\) the current distribution at center is high.

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