Calculating the total power received by an antenna

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A radar antenna transmits 50 kW at 10 GHz in a narrow beam with a 1 m² area, reflecting off an aircraft at a distance of 100 km. Only 1% of the transmitted power propagates back towards the antenna, leading to a calculation of the total power received. The final calculated power received by the antenna is 0.266 W. Participants in the discussion are encouraged to share their calculations and attempts for further guidance. The conversation emphasizes collaboration to solve the problem effectively.
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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.
 
Thread 'Have I solved this structural engineering equation correctly?'

Thread 'Have I solved this structural engineering equation correctly?'

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