Hi all;
I'm a beginner.I have just started designing filters using ADS 2009. I designed a six element band pass filter. But the response is not smooth. Wat am i supposed to do ?? Thanks in advance
Hi all;
I'm a beginner.I have just started designing filters using ADS 2009. I designed a six element band pass filter. But the response is not smooth. Wat am i supposed to do ?? Thanks in advance
* It would much help if you could show us your circuitry. Otherwise, it seems to be problematic to give any comment.
* Your response is "not smooth"? Time or frequency response? What do you want resp. expect from your filter?
You can optimise the your design in ADS, and you can set the S21 range for optimising flatness.
Your filter seems have problem, its S21 < -30dB, that should have problem normally in design. The S21 normally is several dB.
Yes, you need much more data points for evaluating the frequency response.
In addition, what are your requirements - that means, which filter characteristic (ripple within the passband) do you want?