Using Optics To Make An Aircraft Invisible

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baltimorebest
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Using Optics To Make An Aircraft "Invisible"

Homework Statement


Does it seem possible (or practical) to make airplanes invisible to microwave radar by applying some kind of anti-reflection coating?


Homework Equations





The Attempt at a Solution


I'm not sure what to say for this. I want to say that it is possible because it seems as if the government has such aircrafts, but I can't seem to think of a reason why. I thought about using Fresnel coefficient for reflection, but I got stuck. Thanks.
 
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baltimorebest said:

Homework Statement


Does it seem possible (or practical) to make airplanes invisible to microwave radar by applying some kind of anti-reflection coating?


Homework Equations





The Attempt at a Solution


I'm not sure what to say for this. I want to say that it is possible because it seems as if the government has such aircrafts, but I can't seem to think of a reason why. I thought about using Fresnel coefficient for reflection, but I got stuck. Thanks.

I think you can just do some reading about "radar absorbing materials" to get some ideas...
 


Hmm I tried to do that, but I couldn't really find any detailed explanation (in terms of Optics) of how they worked. I just found some results about aircrafts that used the technology.