Phase and Group Delays In the neighborhood of o we can express the unwrapped phase response Ac(o)as 0c(0)≡6c(0)+ d0(o) do O=0 C by making a Taylors series expansion and keeping only the first two terms Using the above formula we now evaluate the time delays of the carrier and the modulating components 9 Copyright C 2001, S K MitraCopyright © 2001, S. K. Mitra 9 Phase and Group Delays • In the neighborhood of we can express the unwrapped phase response as by making a Taylor’s series expansion and keeping only the first two terms • Using the above formula we now evaluate the time delays of the carrier and the modulating componentsc  () c ( ) ( ) ( ) ( ) c c c c c c d d  −         + =