Results 1 to 2 of 2
Like Tree1Thanks
  • 1 Post By chiro

Thread: Parabolas and radio waves

  1. #1
    Feb 2013

    Parabolas and radio waves

    Parabolic radio telescope.

    How would you adjust the parabola ( focus, directrix, vertex etc ) so that incoming radio waves are at their maximum intensity?

    and any other ways such as size of dish or position of beam etc.

    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Sep 2012

    Re: Parabolas and radio waves

    Hey rqyytrf.

    The usual way of looking at maximum intensity for something whether it be flux or something else is to look at orthogonality.

    In normal 3D space, something is orthogonal to something else if x_a*x_b + y_a*y_b + z_a*z_b = 0 for some vectors (x_a,y_a,z_a) and (x_b,y_b,z_b).

    Basically if the normal vector is the reverse of the incoming vector, then you get maximum intensity.

    you can apply this idea across an un-even surface and for that, you want to look at a flux integral.
    Thanks from topsquark
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. radio hosting
    Posted in the New Users Forum
    Replies: 0
    Last Post: Mar 10th 2013, 07:58 PM
  2. Radio transmitter help
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: Jan 15th 2013, 01:30 AM
  3. The Radio Transmitter problem. help?
    Posted in the Calculus Forum
    Replies: 2
    Last Post: Dec 14th 2010, 05:57 PM
  4. wavelength of radio
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: Mar 2nd 2008, 12:25 AM
  5. Radio Station
    Posted in the Geometry Forum
    Replies: 4
    Last Post: Jan 25th 2007, 03:22 PM

Search Tags

/mathhelpforum @mathhelpforum