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Units of radiation intensity is _______

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in Antennas by (157k points)
Units of radiation intensity is _______

(a) Watts/unit Solid angle

(b) Watts/m^2

(c) Watts- m^2

(d) Watts

I had been asked this question in an online interview.

Origin of the question is Radiation Pattern topic in chapter Antenna Parameters of Antennas

1 Answer

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Best answer
Right option is (a) Watts/unit Solid angle

Explanation: Radiation intensity is defined as the power radiated form an antenna per unit solid angle. So its units are Watts/Steradian. Steradian is the unit for solid angle.

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