convert a elliptic low-pass prototype filter to bandpass

[amicloud]

convert lowpass prototype to bandpass

how to convert a elliptic low-pass prototype filter to bandpass filter with cross-coupling resonator structure?
Any references or advices?thanks!!!!!

 

[amicloud]

elliptic low

Very sorry that nobody reply

 

[vfone]

elliptic low pass prototype

This may help you
**broken link removed**
**broken link removed**

 

[djalli]

Very sorry that nobody reply

I searched ADS and other places and have no documentation on cross-coupling resonator structures. To convert a lowpass prototype anything is just as any kind of filter but what stops us (me including) is not knowing a lot about cross-coupling resonator structure.

Do you have information on these to share with us?

 

[amicloud]

I dont well understand your meaning about cross-coupling resonator sturcture.If you mean the physical structure,you can see any cross-coupleing filter products. If you mean the coupling coefficient calculation,
I think you can use FEM softwares(HFSS) to calculate,just like common coupling resonators.
What i most care is how to deduce the topology of a crosscoupling filter,and work out the coupling coefficients from the elliptic lowpass prototype filter.