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In which of the following the power is radiated through a complete spherical surface?

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In which of the following the power is radiated through a complete spherical surface?

(a) Half-wave dipole

(b) Quarter-wave Monopole

(c) Both Half-wave dipole & Quarter-wave Monopole

(d) Neither Half-wave dipole nor Quarter-wave Monopole

I got this question in an interview for job.

I need to ask this question from Power Radiation from Half Wave Dipole in chapter Antenna Parameters – II of Antennas

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The correct option is (a) Half-wave dipole

To explain: In a half-wave dipole the power is radiated in the entire spherical surface and in quarter wave monopole the power is radiated only through a hemispherical surface. Hence its radiation resistance is also twice that of the quarter wave monopole.

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