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a website for visualizing electromagnetism (lemmus.org)
submitted 1 week ago by to c/amateur_radio@lemmy.radio
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a website to help students visualize the electromagnetic field

I’ve been building this simulator as a side project aimed to help students understand and visualize electromagnetic phenomena such as radiation, near field effects, polarization, wave interference and diffraction.

You can:

  • place multiple, diffrent radiation sources and set their parameters (geometery, amplitude, phase and more)
  • place perefect wire conductors, PEC plane and poke slots in the plane to create diffraction patterns
  • observe the electric field, magnetic field, energy flow field, energy density or radiation pattern
  • zoom in and out and translate the canvas
  • change the simulation resolution, frequency and propogation speed and some other parameters

I hope someone might find it useful and I’d love to hear what people think :)

What do you think I should add?

Live:
https://www.antennasim.com/

GitHub:

https://github.com/rotemTsafrir/antenna_sim

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[–] 1 point 5 hours ago* (last edited 5 hours ago)

Get the ARRL antenna handbook, or, if you happen to speak German, Rothammels Antennenbuch. If you are in another country with an active ham scene, there is probably a local equivalent.

I heard that you can find illegal copies of those books online, so watch out, you don't want to accidentally commit a crime, do you? ;)

But no, seriously, if you find a good antenna book at a thrift store or flea market, get it. I wouldn't recommend it new, since they tend to be pretty expensive, unless you have more than enough money and want something nice and shiny on your drawer.

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