I have this simple rectangular waveguide, with a slab of dielectric inside it. Inside the dielectric slab, if I have a metal sheet (not in contact with the top of bottom metal walls of the waveguide). Would effect would the sheet have on the waveguide's performance and why? Will it have any effect at all since the metal sheet is not touching the waveguide directly?
I tried simulating in hfss but i see that it gives me a S21 of -2dB in the operating band.
Would effect would the sheet have on the waveguide's performance and why? Will it have any effect at all since the metal sheet is not touching the waveguide directly?
If it is parallel to the electric field (equipotential) lines, it should not have any effect. If it is perpendical, it will short/distort the electric field in that area.
If it is parallel to the electric field (equipotential) lines, it should not have any effect. If it is perpendical, it will short/distort the electric field in that area.
If it runs vertical, i.e. along the height of the waveguide, i guess its perpendicular. But will it be shorting the fields if the metal plate is not touching the top or the bottom conductive plates of the waveguide. It's just suspended in a piece of dielectric, with no physical contact to the waveguide metals directly.
But will it be shorting the fields if the metal plate is not touching the top or the bottom conductive plates of the waveguide. It's just suspended in a piece of dielectric, with no physical contact to the waveguide metals directly.
I simulated, i would like to share the results, but i dont know why its not uploading my file in any way i tried.
When I simulate the metal sheet suspended in the waveguide, S21 is still near 0dB :S but if i make the sheet touch the top and bottom plates, then it drops.