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Designing Bandreject filters

  1. Nov 19, 2005 #1
    Is there a way I can design a broadband reject filter using a lowpass filter with cutoff frequency [itex]f_1[/itex] and a highpass filter with a cutoff frequency [itex]f_2,\ (f_1 \ll f_2)[/itex] , combined in parallel with a summing amplifier? My current design yields a response that isn't a broadband, there is a significant bump at the center frequency. If I cannot do so, will I have to use a ramp up and a ramp down?
    Sorry for having a run on sentence.
  2. jcsd
  3. Nov 19, 2005 #2
    try higher order equial ripple band stop filter design pattern.
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