Fractal HDTV Antenna for about $5.00.

Discussion in 'General Electronics Chat' started by Duane P Wetick, Oct 21, 2009.

  1. Duane P Wetick

    Thread Starter Active Member

    Apr 23, 2009
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    Minkowski Island Fractal HDTV Antenna built as shown, situated in window, picks up ALL HDTV signals in about a 40 mile semi-circle Radius.
    No need to buy an expensive HD antenna again. Costs about $5.00 in materials.
    The Fractals should result in splendid new antenna designs for all communications challenges. The Mandelbrot theory may be complicated, but the application is currently used in every cell phone.

    Have built 4 of these so far, and they have all worked as predicted.
     
    Last edited: Jan 14, 2010
  2. beenthere

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  3. blueroomelectronics

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  4. beenthere

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    I can when I blow it up.
     
  5. ELECTRONERD

    Senior Member

    May 26, 2009
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  6. blueroomelectronics

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    Is the OP's antenna feasible?
     
  7. ELECTRONERD

    Senior Member

    May 26, 2009
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    Yes!

    Fractal antennas are basically diminutive antennas all bent in various formations and angles to achieve a smaller size. I actually made a fractal antenna for 2-meters; it worked reasonably well. They are resonant on multiple frequencies and that's why they are sometimes used in cell phones. Since cell phones have all the different bands, that type of antenna is needed. To design a fractal antenna, you need a special software (unfortunately) that will comply to the laws of fractal geometry and also electromagnetic theory.
     
  8. beenthere

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    Don't expect too much - www.tsc.upc.es/fractalcoms/.../Conference%20-%20UPC%20-%20ICONIC%202003%20-%20Small%20antennas.pdf
     
  9. Duane P Wetick

    Thread Starter Active Member

    Apr 23, 2009
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    Made another one and mounted it outdoors on old DISH reflector. Mounted it to feed arm with angle and spaced it 1.5" off dish surface. Aimed it to tower(s) using GPS coordinates and hand held compass. HDTV signal reception improved using RG-6 coax. VG signal, no pixilating, (if thats the word) in high winds and snow.

    Regards, DPW [ Fractals are the basis for modern antenna design.]
     
    Last edited: Jan 14, 2010
  10. Telluric42

    New Member

    Oct 9, 2010
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    Hi all,

    i'm newbie but these fractal antenna are really exciting.

    looking at the tv design and the online calculator for a half wave dipole the question i have is this.

    once a you get a length for the dipole is that the "wire length" or the overall length of the fractal shape????

    thanks : )
     
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