Re: [Meep-discuss] why the energy spectrum radiated by a point source doesn't match with the spectrum of source itself?

2014-04-24 Thread Steven G. Johnson
On Apr 22, 2014, at 10:01 AM, Ehsan Saei wrote: > I simulated a point source which is located in free-space (air ) and tried to > compute the power radiated by the source and travels through a cubic that > surrounds the source. After plotting the data I have noticed that the power > has a freq

Re: [Meep-discuss] why the energy spectrum radiated by a point source doesn't match with the spectrum of source itself?

2014-04-22 Thread Mischa Megens
On 4/22/2014 4:08 PM, Filip Dominec wrote: > May it be attributed to that the radiated field is a derivative of the > current, so that high-frequency components are enhanced compared to > the lower frequency ones? Or is it a more complicated deviation? > Regards, > Filip and furthermore, the radiat

Re: [Meep-discuss] why the energy spectrum radiated by a point source doesn't match with the spectrum of source itself?

2014-04-22 Thread Filip Dominec
.45 for source but the power has a frequency center at > 0.5. Is there any solution for this behavior? > >> Date: Tue, 22 Apr 2014 16:08:12 +0200 >> Subject: Re: [Meep-discuss] why the energy spectrum radiated by a point >> source doesn't match with the spectrum of

Re: [Meep-discuss] why the energy spectrum radiated by a point source doesn't match with the spectrum of source itself?

2014-04-22 Thread Filip Dominec
May it be attributed to that the radiated field is a derivative of the current, so that high-frequency components are enhanced compared to the lower frequency ones? Or is it a more complicated deviation? Regards, Filip 2014-04-22 16:01 GMT+02:00, Ehsan Saei : > Dear Steven and MEEP users, > > I si

[Meep-discuss] why the energy spectrum radiated by a point source doesn't match with the spectrum of source itself?

2014-04-22 Thread Ehsan Saei
Dear Steven and MEEP users, I simulated a point source which is located in free-space (air ) and tried to compute the power radiated by the source and travels through a cubic that surrounds the source. After plotting the data I have noticed that the power has a frequency center different from t