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How to calculate Toroidal Moment in HFSS with Fields Calculator

doncat

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I have found eigenmode solutions to a planar conductive resonator in HFSS. I now need to calculate the toroidal moment (dipole) for each eigenmode solution. I'm struggling with how to input the expression found here:


into the Field Calculator. Since the currents J are constrained to the conductive (PEC) plane of the resonator chip, I presume I can just do a surface integral on Jsurf, but I am lost as to how to do the dot product and integral in Fields Calculator.

Attempt so far:
Quantity>Jsurf
Complex>Real
Geometry>Surface>[surface]
...?
 

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