Signal Pattern From a Router Dipole Antenna?

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Does the signal radiate out from the entire length of the dipole or
just from the tip?

Trying to determine the best position for the homeade reflector on the
dipole.

TIA
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  1. Archived from groups: alt.internet.wireless (More info?)

    On Wed, 23 Jun 2004 11:42:31 -0700, Hamish McStill <noone@nowhere.com>
    wrote:

    >Does the signal radiate out from the entire length of the dipole or
    >just from the tip?

    There's no real point source for the RF. Well, there's the "phase
    center" which is mostly used in reference to cantennas and dish feeds.
    For a 2.4GHz vertical coaxial antenna, it would be 1/4 wavelength from
    the tip or 3.25cm down from the tip. Well, it might be a bit lower
    because the rubber covering of the antenna moves the end of the
    antenna down slightly. Up or down a few cm isn't goint to make any
    difference for a coaxial dipole with a theoretical -3dB vertical
    beamwidth of perhaps 120 degrees.

    >Trying to determine the best position for the homeade reflector on the
    >dipole.

    See:
    http://www.freeantennas.com/projects/Ez-10/
    for such a corner reflector.


    --
    Jeff Liebermann jeffl@comix.santa-cruz.ca.us
    150 Felker St #D 831-336-2558
    Santa Cruz CA 95060 AE6KS
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