Electromagnetic Field Thoery - ECE Questions and Answers

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Consider a loss less antenna with a directive gain of + 6 dB. If 1 mW of power is fed to it the total power radiated by the antenna will be

4 mW

1 mW

7 mW

1/4 mW

Answer : Option A

Explanation :

6 dB = 10 log₁₀

= 10^0.6 3.98

P_r = 3.98 mW.

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