building antennas,YAGI

Discussion in 'Wireless & RF Design' started by aac9876, Jan 20, 2007.

  1. aac9876

    Thread Starter Active Member

    Dec 9, 2006
    124
    0
    Is the spacing on a Yagi elements 2.4 g exactly 2.4 mill,or cent. or what.
    How exact does this need to be?? thanks:confused:
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Hi,

    Speed of light is generally figured at 96% of the free space value for antenna calculations. Yagi elements are spaced 1/4 wavlength apart. The director is about 5% shorter than the driven element, and the reflector is about 5% longer. The closer the elements and spacings, the better antenna performance.
     
  3. Gadget

    Distinguished Member

    Jan 10, 2006
    613
    0
    but the narrower the bandwidth.
     
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