Port 1 does not have a solved inside material on either side

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andidmg

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hello everybody!
i am beginner in the use of HFSS. I design pyramidal horn antenna, validate is ok.but error after change material to aluminium.
[error] Port refinement, process hf3d error: Port 1 does not have a solved inside material on either side..
[error] Simulation completed with execution error on server: Local Machine.
what's wrong with the project? please somebody help me!!
 

Sounds like you changed the wrong material to aluminium. Make sure the dielectric inside the waveguide feed wasn't changed.
 

thanks PlanarMaterial, how make the dieletric inside the waveguide feed isn't change? please tell me step by step.help me!
 

1) Select the object.
2) Observe the assigned material.
3) If the material is aluminium, change it to a dielectric.
 

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