- #1

timber1969

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- TL;DR Summary
- are E and M field in phase (far field)?

Hi alltogether,

I have been confused about a certain topic of EM wave propagation:

it´s clear to me that E and M field are perpendicular to each other (I know Maxwell´s equations well).

But:

sometimes you can find on the internet that both fields are in phase:

https://i.stack.imgur.com/aeoHQ.jpg

... whereas in other cases there is a phase shift of pi/2 respective to each other:

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRSjCbPyMVkBNOOJXtZ3o0cO7T1xXp58OZ2Cg&usqp=CAU

So my question is: what is correct and why?

Thank you very much in advance and best regards,

Tim

I have been confused about a certain topic of EM wave propagation:

it´s clear to me that E and M field are perpendicular to each other (I know Maxwell´s equations well).

But:

sometimes you can find on the internet that both fields are in phase:

https://i.stack.imgur.com/aeoHQ.jpg

... whereas in other cases there is a phase shift of pi/2 respective to each other:

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRSjCbPyMVkBNOOJXtZ3o0cO7T1xXp58OZ2Cg&usqp=CAU

So my question is: what is correct and why?

Thank you very much in advance and best regards,

Tim