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PCB Log Periodic Antenna

Discussion in 'Electronic Design' started by Bob Morris, Oct 24, 2011.

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  1. Bob Morris

    Bob Morris Guest

    I need a log periodic broadband antenna covering the 700MHz to 4 or
    6GHz range for ambient field measurements. They are several hundred
    dollars from test equipment suppliers. But, with due respect, there
    doesn't seem to be that much to them, in terms of construction.

    http://www.spectran.com/HyperLOG7000_en.shtml

    Has anyone by chance seen a low cost PCB version of these for sale? If
    not, is one feasible, say using an applet like the one below to design
    the segments?

    http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=16289

    Bob Morris
     
  2. Uwe Hercksen

    Uwe Hercksen Guest

    Hello,

    the normally used PCB material FR4 will be not suitable for frequencies
    of several GHz, you should use a special HF PCB material.

    Bye
     
  3. Guest

    The cost isn't in the production, rather the design and calibration. That has
    to be made up on a fairly small quantity sold, so...
     
  4. Malcolm Faed

    Malcolm Faed Guest

    Hi Bob,
    Try http://winradio.com/home/antennas.htm
    Regards,
    Mal.

    "Bob Morris" wrote in message
    I need a log periodic broadband antenna covering the 700MHz to 4 or
    6GHz range for ambient field measurements. They are several hundred
    dollars from test equipment suppliers. But, with due respect, there
    doesn't seem to be that much to them, in terms of construction.

    http://www.spectran.com/HyperLOG7000_en.shtml

    Has anyone by chance seen a low cost PCB version of these for sale? If
    not, is one feasible, say using an applet like the one below to design
    the segments?

    http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=16289

    Bob Morris
     
  5. Nico Coesel

    Nico Coesel Guest

    Even if the material is very thin?
     
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