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frequency terminologies

Discussion in 'Electronic Basics' started by hannibal, Feb 9, 2004.

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  1. hannibal

    hannibal Guest

    Hi

    someone can tell me waht's the difference between "frequency corner" and
    "center frequency"
    Thank you for your help.
     
  2. The frequency corner is where schoolchildren go to study frequencies.
    The center frequency is how often the term center occurs in a
    probability distribution.

    HTH,

    --Jeff
     
  3. Not sure about frequency corner, but corner frequency usually refers
    to the 3 db down frequency in a high or low pass filter. Bandpass
    filters have a frequency that is either the highest response frequency
    somewhere in the pass band, or the geometric mean of the two 3 db down
    frequencies on each side of the pass band, called the center
    frequency. This also applies (inversely) to band reject filters.
     
  4. Jamie

    Jamie Guest

    i have heard the term before and it stims from nothing
    buy made up electronic slang..
    the frequency corner is what you see on the SpectroGraph
    is it is dippling downward on either side and is usually
    .707 of max peek that denotes the corner. other wise known as
    a term to measure band pass etc..
     
  5. hannibal

    hannibal Guest

    i get really confused with frequencies terminologies.
    actually i am working on spreadsheet for Tx so first i am trying to get
    familiar with terminologies so i strart with taking a look to Rx spreadsheet
    that's alrady done by someone else.
    In excel Rx spreadsheet, sometime:
    Device frequency corner= Center Frequency+ 1/2 (Device3dB Bandwidth at
    output)

    and sometime:
    Device frequency corner= Center Frequency+ Device3dB Bandwidth at output

    i don't know why?
    please advice
     
  6. Probably because someone forgot the 1/2 from the second equation.

    Corner--> ------------ <--Corner
    /| ^ |\
    / | | | \
    / | | | \
    / | C | \
    / | e | \
    / | n | \
    / | t | \
    / | e | \
    / | r | \
    / |<-3dB BW->| \

    --Jeff
     
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