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Design >> Analog Design >> How to generated LC ladder filter from transfer function?
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Message started by unaffected on Aug 22^nd, 2010, 6:51pm

Title: How to generated LC ladder filter from transfer function?
Post by unaffected on Aug 22^nd, 2010, 6:51pm

I synthesis a filter and the transfer function of the filter is got, I need to change the transfer function (with no zeros) to the LC ladder filter, I tried to use filter solutions by using its cutom filter menu, but after I input the coefficient of the transfer fuction, filter solutions display "No circuit can be generated".

My question is, given the arbitrary transfer function, how can I get the LC ladder form of the filter?

Title: Re: How to generated LC ladder filter from transfer function?
Post by raja.cedt on Aug 22^nd, 2010, 8:25pm

hi,
it depends on the transfer function, based on the properties of the TF you can say weather it is realizable or not. Please go through some basic network synthesis book. Other wise please publish the transfer function.

Thanks,
Rajasekhar.

Title: Re: How to generated LC ladder filter from transfer function?
Post by unaffected on Aug 23^rd, 2010, 3:03am

the denominator of the transfer function is :
s^6+1.574827s^5+2.725802s^4+2.339088s^3+1.732449s^2+0.694943s+0.165114
the numberator of the transfer function is 1
Thank you very much.