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Far field/near field wave excitation in HFSS

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maxxxim

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hfss,far field

Hi,

I am trying to simulate pyramidal horn antenna (60GHz) and than consider the field distribution at the different distances from the antenna using far field/near field wave excitations and “source”, “target” projects. While near field excitations works well, far field excitation gives completely unpredictable results. Does somebody observed similar phenomenon? Do you know how to handle with it?
 

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