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Dipole emission
Posted Dec 16, 2015, 9:23 a.m. EST Version 5.1 1 Reply
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Dear Comsol community,
I simulated an electric dipole emission in homogeneous 3D space. The dielectric permittivity is 1, the boundary conditions are PML. Then I integrated the nx*emw.Poavx+ny*emw.Poavy+nz*emw.Poavz over the surface surrounding the dipole, but the result is quite differ from the analytical solution (μ0*ω^2*P^2)/(12 pi c). Due to the units of electric dipole moment in Comsol, I assume it is P(A*m)=ω(1/s)*P(c*m), so there is a squared frequency.
Could you clarify the difference?
Thanks for every reply and suggestion.
I simulated an electric dipole emission in homogeneous 3D space. The dielectric permittivity is 1, the boundary conditions are PML. Then I integrated the nx*emw.Poavx+ny*emw.Poavy+nz*emw.Poavz over the surface surrounding the dipole, but the result is quite differ from the analytical solution (μ0*ω^2*P^2)/(12 pi c). Due to the units of electric dipole moment in Comsol, I assume it is P(A*m)=ω(1/s)*P(c*m), so there is a squared frequency.
Could you clarify the difference?
Thanks for every reply and suggestion.
1 Reply Last Post Dec 16, 2015, 12:40 p.m. EST
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Posted:
9 years ago
Mistake is found.