Radio Amateur Quiz Canadian License

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Question A-007-008-004

What is the term for the ratio of the radiation resistance of an antenna to the total resistance of the system?

Correct Answer

Antenna efficiency

Explanation

Antenna efficiency (η) is defined as the ratio of the power radiated by the antenna (related to radiation resistance, Rr) to the total power delivered to the antenna feedpoint (related to total resistance, Rt = Rr + Rloss). η = Rr / Rt.

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