circular waveguide excitation

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llchuan

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hi
im quite new to hfss and got a few questions here
how can i excite a tm01 mode in a circular waveguide using hfss?
I have tried setting both ends to waveport but Im not sure of what to do next
can anyone pls enlighten me?
 

HI llchuan

It's easy Just you need to define the proper boundary conditions.
For the TM01 mode - it's a 3D-sector with two H-plains.
 

hey thanks for the reply
do you mean setting the boundary to perfect h?
can you post a sample for me to refer to?
 

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