Naureen Butt

Many thanks sir.Means sir if my simulation span(FDTD span) is 2500 nm and period of unit cell is 250 nm then the monitor span must be (2500nm+2(250nm))=3000nm.Am i getting your point?

secondly sir my instructor used to say to keep source at  a distance of 250nm below the nano antenna irrespective of the ioperating wavelength.So as per your directions should i always hv to place source at the distance equal to half the operating wavelegth?

What if we are doing broad band simulation? Then what would be source location?