We have a homework that we could not understand also can not find in our lecture notes how we can solve; just please help us. It is important:

A uniform plane wave in air reflects from a dielectric medium surface located at z=0 in x-z
plane. Field measurements on the standing wave pattern in air region reveals the following:
• Spacing between maxima points is 1.5 m
• First makima is 0.75 m away from dielectric interface
• Standing wave ratio is 5
Determine the wave impedance of the dielectric medium.

We are waiting your answers.

 

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