Calculating the total power received by an antenna

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SUMMARY

The discussion focuses on calculating the total power received by a radar antenna transmitting 50kW at 10 GHz, with a narrow beam area of 1m². The power reflected from an aircraft is only 1% of the transmitted power, and the aircraft is located 100km away. The total power received by the antenna is calculated to be 0.266 W, considering the permittivity and permeability of free space and a conductivity of 10^-7 S/m.

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A radar antenna transmits 50kW at 10 GHz. Assume transmission is in a narrow beam, 1m^2 in area, and that within the beam, waves are plane waves. The wave is reflected from an aircraft but only 1% of the power propagates i the direction of the antenna. If the airplane is at a distance of 100km,

Calculate: The total power received by the antenna. Assume Permittivity and permeability of free space and conductivity of 10^-7 S/m.

ANSWER: The answer is 0.266 W (I can't seem to get it.)
 

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Can you show what you have attempted, so far? Then we will make suggestions to guide you.
 
scottdave said:
Can you show what you have attempted, so far? Then we will make suggestions to guide you.

Thanks for the interest, I already attached the PDF file of my work, let me know if you can't see it.
I also attached a second attempt of the problem, to this post.
 

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I missed that there is a file attached. I will take a look.
 

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