What is its radiation efficiency

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Reference no: EM131108161

A high-gain antenna array operating at 2.4 GHz is pointed toward a region of the sky for which the background can be assumed to be at a uniform temperature of 5 K. A noise temperature of 105 K is measured for the antenna temperature. If the physical temperature of the antenna is 290 K, what is its radiation efficiency?

Reference no: EM131108161

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