Reply To: FDTD Phase center calculation from far-field projection

[Guilin Sun]

According to Balanis' book, the phase center is where in the antenna the radication can be considered as a spherical wave. You may need to find a reference paper for the calculation. For example, 

Calculating the Phase Center of an Antenna: A Simple Experimental Method Based on Linear Near-Field Measurements. [Measurements Corner]

a numerical technique to determine antenna phase center