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The radiation of energy from an antenna can be seen in the ________

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The radiation of energy from an antenna can be seen in the ________

(a) standing wave around antenna

(b) radiation resistance of the antenna

(c) reflected resistance of the antenna

(d) I2R loss of the antenna

This question was addressed to me in an interview.

Asked question is from Synchronous TDM topic in portion Multiplexing & Sampling of Bandpass Signal of Analog Communications

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The correct choice is (b) radiation resistance of the antenna

To explain I would say: An antenna is basically a transducer that converts radio frequency fields into alternating current or vice versa. They can be used for both transmission and reception of radio signals. Radiation resistance of the antenna is just a measure of radiation of energy from antenna.

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