Hi All,
I am trying to design a Bessel LPF with a cut-off of 48.8 MHz.
I chose passive cos of the very high freq. involved. My text gives equations gives equations to find transfer function of Butterworth second order filter given our desired specs and to realize it using a LCR circuit. I designed and simulated it in Pspice but could not get exact cut-off and had quite a non-linear phase response.
I want some help to do the same for a Bessel topology cos linear phase is of the most importance in my project. But, I have no idea about the equations and such for Bessel filters. Does anyone know of any resource online that would help me design a Bessel LPF of a higher order, say 5 or so?
Thanks a lot,
I am trying to design a Bessel LPF with a cut-off of 48.8 MHz.
I chose passive cos of the very high freq. involved. My text gives equations gives equations to find transfer function of Butterworth second order filter given our desired specs and to realize it using a LCR circuit. I designed and simulated it in Pspice but could not get exact cut-off and had quite a non-linear phase response.
I want some help to do the same for a Bessel topology cos linear phase is of the most importance in my project. But, I have no idea about the equations and such for Bessel filters. Does anyone know of any resource online that would help me design a Bessel LPF of a higher order, say 5 or so?
Thanks a lot,