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RE: Quarter Wavelength Frequency
Original poster: Jan Wagner <jwagner-at-cc.hut.fi>
On Tue, 13 Jul 2004, Jan Wagner wrote:
> On Mon, 12 Jul 2004, Tesla list wrote:
> > Original poster: "David Thomson" <dwt-at-volantis-dot-org>
> How the field goes on about rearranging itself you can
> simulate and watch with discretized Maxwell equations, for example with
> some 3D FDTD method. (looks like there's at least one XFDTD prog version
> on share via www.emule-project-dot-net, but OTOH there are also many freeware
> tools and source code on the internet, and there's www.aplac-dot-com circuit
> sim demo version which can handle FDTD, albeit it's more like for smaller
> VHF/UHF helix antennas...)
And of course I managed to leave out the most important part: when you run
a Fourier transform on the fields late during or right after your FDTD
simulation, you directly get the resonant freq(s).
cheers,
- Jan
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