Coaxial cable vs. antenna

Discussion in 'Wireless & RF Design' started by kubeek, Mar 25, 2009.

  1. kubeek

    Thread Starter AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Hi,

    I just had a thought ;)
    If I take a (maube λ/4 long?) pice of coaxial, and connect ground to the central wire and signal to the outher shilelding, will it work like an antenna or not? Or just a little?
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    It will resonate, it can act as a very narrow bandpass or notch.
     
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    It's a bit more successful if you can strip the insulation at the 1/4 wave length measurement. Remove the insulation of the 1/4 wave section, and work the exposed braid down over the insulation to leave the center conductor as the receive/transmit element.
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    Another option (like beenthere) make a little hole in the braid pull the centercore through
    and stretch the braid in opposite direction of the core.
    You will end up with an open dipole.

    Greetings,
    Bertus
     
Loading...