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HFSS antenna design kit - Virtual radiation box and air box

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blurrule

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hi,

just wondering why in the antenna design kit provided by Ansoft HFSS have two box defined; the first one is virtual radiation box and the second one is air box.

What does both of these doing actually?
 

Hi blurrule,
Creating a “virtual object” having the same properties of the surrounding material, results in better accuracy and reduced simulation time. Typically the material is air or vacuum for most antennas.kindly refer the document "03_Antenna_Modeling_Considerations.pdf", available in ADK installed folder.
 
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