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Explain me the concept of skin depth

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skin depth

Hello everyone;
Please explain me the concept of skin depth.
 

Re: skin depth

Hi:

consider a waveguid which is working in the daminant mode . why the wave propagate in the length of waveguide and not propagate across the waveguide ?
now you consider a microwave oven . why the food cook in several minuit ?
in the former case the skin depth of the waveguide is very low and therefor the wave can not penetrate in it then propagate only in the length of it . in the latter case the skin depth is too long and the wave can penetrate easily and deliver the energy to food.
 

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