Simulating the STA Magnetic Field

March 7, 2011 at 11:24 pm 3 comments

So Bashar mentioned that this STA (space-time antenna) is like a capacitor and an inductor, both of which require a steady and continuous flow of AC current to function. It sounds like we will need to start the STA up with an external source of AC current and this device will begin resonating in such a way that it will amplify our initial external input of current. Hopefully the energy that it transforms down from higher level energy will be enough to cycle back into the STA to get it to continue to function. At the same time, I’m hoping there’s excess energy that we’ll be able to tap into and pull out of the antenna, using to power other devices. So the idea is that this becomes a self-sustaining device, producing excess power that we can remove from the system.

Anyways, at this point I’m going back over electromagnetic theory and trying to figure out how the magnetic field will look once we start running a current through it. For example, here’s what the magnetic field lines will look like when current is passed through a straight coil called a solenoid:

Magnetic field in a straight coil of wire

Magnetic field in a straight coil of wire

(Image credit: NDT Resource Center)

You can see that the strongest area of the magnetic field is inside the core of the solenoid.

Now our design is going to be a bit different of course, but I’m guessing it’ll still be somewhat similar in that the magnetic field’ll be strongest in the core. Curious how the unique shape of the STA will create a magnetic field, I’ve been looking into ways of simulating the design in software. My friends on the STA Discussion Board shared a list of EM simulation software. Working through that list, one of the programs I tried was Vizimag. After contacting the developer and him helping me get started (thank you!!), I was able to put together simulation models for this STA.

First off we have the magnetic field for just one cone operating independently:

Single cone coil magnetic field

Single cone coil magnetic field

The magnetic field of single cone-shaped coil looks pretty simple to understand and is pretty much what we’d expect, looking at the cylindrical solenoid magnetic field shown earlier.

To get a better perspective, let’s look at a color mapped version of the magnetic field.

Single Cone Magnetic Field

Single Cone Magnetic Field

We can also add some contour lines to this image for a bit more definition.

Single Cone Magnetic Field with contour lines

Single Cone Magnetic Field with contour lines

Looking at this, we can see that the magnetic field gets stronger inside the cone the closer we get to the pointy apex.

Now when we add the second cone through the first, things get a little bit more complex. Here’s how the magnetic field for our STA’s double cone-shaped coil looks:

STA magnetic field (click to see it larger)

STA magnetic field

If you visualize the STA on an XY axis broken up into 4 quadrants, you get 4 small cones each pointing towards the middle of the STA, one small cone in each quadrant. Magnetically speaking, each one of the 4 smaller single cone antennas performs similar to our large single individual cone shown above. Interesting…

To make the overall magnetic field easier to visualize, let’s look at a color mapped version. The brighter and hotter the colors, the more magnetic field you’re getting. The darker and blacker the region, the less magnetic field is created when we run a current through the STA.

STA Colored Magnetic Field

STA Colored Magnetic Field

Looking at this, we can see that the majority of the magnetic field is occuring closest to the actual wires themselves. The 4 smaller cones we talked about earlier is the next most dense area. The core is definitely a dead zone.

To help illustrate this even further, let’s add some contour lines.

STA Colored Magnetic Field with contour lines

STA Colored Magnetic Field with contour lines

Looking at this, it’s easier to see where our dead zones are: The far corners of the image, the center of the STA, and also a few dots surprisingly close to the coils themselves.

For those of you who want to run the simulations yourself, you can download a copy of Vizimag (30 day free trial available) and download the model for the single cone and/or double cone STA design.

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Entry filed under: Theory.

Bashar Explaining More About the Antenna Beautiful 3D Renderings of the STA

3 Comments Add your own

  • 1. 7imix  |  June 26, 2011 at 11:08 am

    This is extremely interesting, thanks for taking the time to model the magnetic fields.

    Notice how when you add the second cone to the simulation the magnetic field drops considerably. My theory is that this is because any magnetism generated by the coil that is able to escape the space-time region of the coil is waste; emf. This design reduces emf, which is great.

    Interesting to think about how every device that puts off emf is just wasting energy by scattering it into space and turning it into heat.

    (emf as in the modern definition of electromagnetic fields or frequencies, not electromotive force as tesla uses it)

    Reply
  • 2. manukengkuk  |  January 6, 2012 at 7:55 am

    thats the shape of DNA dont you think?

    Reply
  • 3. Isaac  |  January 17, 2012 at 9:49 am

    can someone BUILD SOMETHING OMG

    Reply

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