How to measure phase of a filter in networks software?

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mahadev sarkar

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Dear all,

i'm facing a trouble to get flat phase response. actually i am getting phase which is changing from -180 degree to 180 degree in pass band(normally it happenes). now how can i get it flat through out my pass band( what ever the flatness comes!) please help me.

thanks in advance.
 

Is it the jump in phase from -180 to +180 you are concerned about or the non-linearity? The jump is usually simply a simulation artifact. The curvature you have is real.

Keith.
 

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