Characteristic impedance

Discussion in 'General Electronics Chat' started by retired flyer, Aug 3, 2014.

  1. retired flyer

    Thread Starter New Member

    Aug 3, 2014
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    I am learning about characteristic impedance. My question is if the characteristic impedance is 200 ohms at 1000 kilohertz what is the characteristic impedance at 2000 kilohertz.How do I calculate the answer; I can not find the information in the material I am reading.
    Regards,
    Walter
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,367
    Still 200 ohms. The characteristic impedance is independent of frequency.
     
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  3. Papabravo

    Expert

    Feb 24, 2006
    10,173
    1,797
    Characteristic impedance is a function of the geometry of the conductors and the velocity factor. Neither of these depend on frequency. This does not mean that you can use cables of extremely long length since signal loss is related to frequency.

    http://www.allaboutcircuits.com/vol_2/chpt_14/3.html
     
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