HFSS Beginner - Patch antenna efficiency & gain calculat

Hi All,

How can I calculate the efficiency and gain of an patch antenna modeled in HFSS?

Regards,
-- Soyuz

Results----Create Far Fields Report----Rectangular Plot----Antenna Parameters----Radiation Efficiency

Do i need to define unit to the efficiency ? (%...)

No, you don not have to define the unit for efficiency.