Microstrip Filters

Thread Starter


Joined May 29, 2007
Hi All,

I am trying to desing a Microstrip bandpass filter using edge coupled line filter technique.

This filter is a narrow band filter. I did lot of trials to design it but the problem is the Insertion Loss in the band is too high. I am not able to reduce it.

I want to know that is it true that Edge coupled line filter technique is not suitable for a narrowband filter?

If it is not suitable then which technique will be suitable :
a) End coupled structure
b) Hairpin line structure
c) Comb line structure

Can anyone help me in this problem??:(:confused:

Is there any book or link in the web from which I can get useful information for designing a narrowband filter??