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15 Nov 2014 Microstrip low-pass filter analysis using 3D FDTD code with UPML Microstrip low-pass filter analysis is performed by the 3D FDTD + UPML routine. Author: Vasily Kozhevnikov Ferhat

20 Aug 2014 Microstrip line-fed rectangular antenna analysis using 3D FDTD code Microstrip line-fed antenna analysis is performed by the 3D FDTD Author: Vasily Kozhevnikov Vasily Kozhevnikov

nageswara rao, you can increase PML layers with PML parameter. Ex - is a physical x-component of electric field, Gx and Fx - additional variables of UPML technique for FDTD, k_Ex_a and etc. - transformation coefficients of FDTD method

30 Jul 2014 Microstrip line-fed rectangular antenna analysis using 3D FDTD code Microstrip line-fed antenna analysis is performed by the 3D FDTD Author: Vasily Kozhevnikov nageswara rao

how can we select the number of PMLs?
what these parameters Ex,Gx,Fx,Hx,Bx, k_Ex_a,b,c,d are stands for?

25 May 2014 Numeric solution of Vlasov-Poisson system in 1D An example of Vlasov-Poisson system solution for the problem of nonlinear Landau damping in 1D Author: Vasily Kozhevnikov Alexey Borisov

Great!

14 Feb 2014 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov jpadam

Thanks for the correction of the TE mode, everything works fine now !

05 Feb 2014 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov Vasily Kozhevnikov

Yes, L in [meters].
UPML FDTD for TE mode needs three Index matrixes due to the fact that in FDTD Ex, Ey and Hz have different space grids. You may apply single Index, but it'll cause distortions at low space resolution.
"My" implementation based on original Gedney's work http://dx.doi.org/10.1109/8.546249

05 Feb 2014 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov arnold

great implementation, seems to work well.

L is in meters too, I guess.
I don't get why there are three indices, why should material 2 not be congruent in space for all three, doesn't make sense in my head.

Maybe it'd make sense to add the ability to give complex refractive index, many users of FDTD do optics only and might not be physicists :)

....oh and there is no paper to cite your implementation, so I can give it to my students, is there?

29 Jan 2014 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov Alexey Borisov

05 Dec 2013 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov jpadam

Really nice and well written script. Ready to study the EM scattering of 2D structures.

However, I think there is a problem in the TE mode. I simulated a cylinder (just removed "&& (L(1)-I*dx<=J*dy", line 63) and observed that the Hz pattern isn't quite symmetric...

05 Dec 2013 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov jpadam

05 Dec 2013 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov jpadam

26 Oct 2013 Simulation of stable domain mode generation in Gunn diode Simulation of stable domain mode generation in Gunn diode Author: Vasily Kozhevnikov Alexey Borisov

10 Oct 2013 Microstrip line-fed rectangular antenna analysis using 3D FDTD code Microstrip line-fed antenna analysis is performed by the 3D FDTD Author: Vasily Kozhevnikov Alexey Borisov

10 Oct 2013 Microstrip line-fed rectangular antenna analysis using 3D FDTD code Microstrip line-fed antenna analysis is performed by the 3D FDTD Author: Vasily Kozhevnikov Alexey Borisov

09 Oct 2013 Microstrip line-fed rectangular antenna analysis using 3D FDTD code Microstrip line-fed antenna analysis is performed by the 3D FDTD Author: Vasily Kozhevnikov Ulrich

Please, correct Duroid layer thickness!

19 Sep 2013 Microstrip branch line coupler analysis using 3D FDTD code with UPML Microstrip branch line coupler analysis is performed by the 3D FDTD + UPML routine. Author: Vasily Kozhevnikov Vasily Kozhevnikov

Add pause(0.01) after drawnow if the animation output is very fast on your PC.

19 Sep 2013 Microstrip low-pass filter analysis using 3D FDTD code with UPML Microstrip low-pass filter analysis is performed by the 3D FDTD + UPML routine. Author: Vasily Kozhevnikov Vasily Kozhevnikov

Add pause(0.01) after drawnow if the animation output is very fast on your PC.

11 Sep 2013 Microstrip branch line coupler analysis using 3D FDTD code with UPML Microstrip branch line coupler analysis is performed by the 3D FDTD + UPML routine. Author: Vasily Kozhevnikov Aleksey

10 Sep 2013 Microstrip branch line coupler analysis using 3D FDTD code with UPML Microstrip branch line coupler analysis is performed by the 3D FDTD + UPML routine. Author: Vasily Kozhevnikov Ulrich

Thanks for real FDTD example!

05 Sep 2013 Microstrip low-pass filter analysis using 3D FDTD code with UPML Microstrip low-pass filter analysis is performed by the 3D FDTD + UPML routine. Author: Vasily Kozhevnikov Aleksey

05 Sep 2013 Microstrip low-pass filter analysis using 3D FDTD code with UPML Microstrip low-pass filter analysis is performed by the 3D FDTD + UPML routine. Author: Vasily Kozhevnikov Ulrich

03 Sep 2013 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov Ulrich

Great, thanks!

14 Aug 2013 Simulation of stable domain mode generation in Gunn diode Simulation of stable domain mode generation in Gunn diode Author: Vasily Kozhevnikov Aleksey

29 Jul 2013 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov Aleksey

22 Jul 2013 Simulation of stable domain mode generation in Gunn diode Simulation of stable domain mode generation in Gunn diode Author: Vasily Kozhevnikov Aleksey

20 Jul 2013 Example of WENO3-LF and WENO5-LF scheme for 1D Buckey-Leverett problem Explains how to use WENO scheme for simple 1D Buckley-Leverett equation. Author: Vasily Kozhevnikov Aleksey

20 Jul 2013 2D FDTD code with TF/SF interface and UPML absorbing borders Simple example implements FDTD + UPML + Total Field/Scattered Field interface Author: Vasily Kozhevnikov Aleksey

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