Reply To: FDTD antenna impedance

[Guilin Sun]

I guess you have strong background in antennas and microwaves. In FDTD simulation it is prurely optic simulation, no voltage or current is involved other than electrix and magnetic fields. FDTD is simulating the "antenna" radiation with optical signal, eg, the excitation of FDTD. 

Please refer to this example https://optics.ansys.com/hc/en-us/articles/360042041094-Quarter-wave-impedance-transformer 

Maybe a better alternative is: what result do you want to simulate?