No, the far-field region must be vacuum (or a single constant ε and μ in any case).
> On Sep 6, 2021, at 2:14 AM, Krishna Nivedita G > <niveditakrishn...@iisertvm.ac.in> wrote: > > Hi all, > > I am a beginner at working with MEEP software and FDTD simulations. I wanted > to simulate the radiation pattern of an antenna with a long conductor kept > nearby. I tried to modify the Near to Far-field example to obtain the > result. > While defining the geometry I added a metallic block which can be considered > as the long conductor(1m vertically below the source)...the source is at the > middle (0,0) as in the example : (a=1m considered) > > geometry = [mp.Block(mp.Vector3(mp.inf,0.001), > center=mp.Vector3(0,1), > material=mp.metal)] > > In the simulation, the near field box is 4m width and height around the > source(full cell size as in the tutorial example) ...the rest of the flux is > obtained from the far-field calculations. > > I would like to increase the distance of the conductor from the source..but > can I increase it beyond the near field box? Can I place it in the far-field > region? Or should I increase the size of the near-field box and place the > conductor within? > Kindly advise me on the same. > -- > Krishna Nivedita G, > Int.BS-MS, > School of Physics, > IISER Thiruvananthapuram. > _______________________________________________ > meep-discuss mailing list > meep-discuss@ab-initio.mit.edu > http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss _______________________________________________ meep-discuss mailing list meep-discuss@ab-initio.mit.edu http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
