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coaxial test PCB pattern

Discussion in 'Electronic Design' started by FrankW, Dec 9, 2004.

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  1. FrankW

    FrankW Guest

    Hello Group
    Has anyone come across a PCB foil pattern which
    can accomodate a test probe for a coaxial type connection
    In other words something that would eliminate a SMA
    type connector for certain boards that fail and need to be probed.
    Using some sort of coaxial test probe.
    Thanks in advance
  2. John Larkin

    John Larkin Guest

    We just use a pth for the signal and another nearby for ground, and
    use a fast high-impedance (fet or sampling) probe.

    How fast is the signal? Must the probe be a 50-ohm cable?

    Oh, you can also just do the SMA pattern with tight holes and just
    sort of press in a connector temporarily.

    Or use a permanent but cheaper surface-mount connector, like the
    Hirose things.

  3. FrankW

    FrankW Guest

    Those tiny,cheap SMT connecters will do the trick.
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