How can I calculate the mutual coupling impedance between two array patch antennas in HFSS?

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Pouya Faeghi

when you export in CST i can help you

i dont know in How is work in HFSS

but in cst, cst has array properties and you can change numerical.

after that you can use in Macro >>> wizard >>> array wizard and make array

I hope can be help you

Kaveh Keshtkaran

S21 gives you the mutual coupling . For a Current plotting and editing the source look at the attached files.

Maryam Shafiee

Z parameters give the mutual impedance. HFSS Design environment could be used for applying voltage/current sources and measurements