quasi elliptic bandpass filter

Dear all

I would like to design a quasi elliptic bandpass filter

I know about chebyshev ,chebyshev type 2 and elliptic functions but i dont know about quasi elliptic filters.
does anyone have a clue how can i start and is there a paper or a tutorial that descripes a procedure to design such filters

Thanx in advance

Hi

I to had to design such a filter a year ago. I can tell you that there is no "cookbook" like when you design low, -high or band pass filters from Pozars book. I can recommend articles escpecially from M. J. Lancaster. He has also written a book called "Microstrip filters for RF/microwave applications" which could be usefull.

However I most admit that I found it difficult to find a direct way to deisgn them. But you can check out these references and see if they make sence.

Regards