- #1
Dimani4
- 50
- 0
Hello people,
I'm a little bit confused about how to define the polarization direction for TM/TE mode.
Take a look at the TE mode picture I found in some place.
Picture1
The Cartesian system of coordinate (XYZ) here is chosen by the right hand rule.
Picture2
But how we chose the direction of magnetic field (H) and electric field (E)? If I chose it according the right hand coordinate the direction of electric field E (TE- E field perpendicular to the incidence plane i.e. in the Y direction)should be out of the plate and not into the plate (as described here in the Picture1) and the direction of the magnetic field should be exactly the opposite to the one that signed in Picture1.
Here the TM case.
Picture3
Here the situation for the E field is right (if we choose the right hand rule) but the H field again should be out of the plane and not into the plane as depicted in Picture3. And why for TE (magnetic field Hi) and TM (electric filed Ei) have the opposite directions?
Here I found another picture (Picture4) where for the TE (magnetic field B) and electric field E for TM have the same directions.
Picture 4
Please help to understand this confusion.
Thank you.
I'm a little bit confused about how to define the polarization direction for TM/TE mode.
Take a look at the TE mode picture I found in some place.
Picture1
The Cartesian system of coordinate (XYZ) here is chosen by the right hand rule.
Picture2
But how we chose the direction of magnetic field (H) and electric field (E)? If I chose it according the right hand coordinate the direction of electric field E (TE- E field perpendicular to the incidence plane i.e. in the Y direction)should be out of the plate and not into the plate (as described here in the Picture1) and the direction of the magnetic field should be exactly the opposite to the one that signed in Picture1.
Here the TM case.
Picture3
Here the situation for the E field is right (if we choose the right hand rule) but the H field again should be out of the plane and not into the plane as depicted in Picture3. And why for TE (magnetic field Hi) and TM (electric filed Ei) have the opposite directions?
Here I found another picture (Picture4) where for the TE (magnetic field B) and electric field E for TM have the same directions.
Picture 4
Please help to understand this confusion.
Thank you.