quick question about bandwidth

Discussion in 'Wireless & RF Design' started by facetten, Mar 9, 2010.

  1. facetten

    Thread Starter Member

    Nov 1, 2007
    11
    0
    if m(t) is bandlimited as –
     
  2. Ghar

    Active Member

    Mar 8, 2010
    655
    72
    Basic trig identity:
    cos(x)^2 = 1/2 + 1/2 cos(2x)

    Squaring a signal doubles the bandwidth.
     
    Last edited: Mar 10, 2010
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