Microstrip line improvements, and something about ADS momentum.
时间：04-07
整理：3721RD
点击：
Hello,
How can i improve the mismatch between measurement (a microstrip line, closed boundary) and layout in ADS momentum.
In which way can i model lines in momentum by using lumped components.
Just an example: is it possible to move the S11 magnitude caracteristic ''left-right'' to have better matching.
2. What are the parameters that affect mostly on the mismatch.
3. What is the case when i should use momentum instead of momentum RF, and Open Boundary instead of Closed ( in the bottom substrate).
How can i improve the mismatch between measurement (a microstrip line, closed boundary) and layout in ADS momentum.
In which way can i model lines in momentum by using lumped components.
Just an example: is it possible to move the S11 magnitude caracteristic ''left-right'' to have better matching.
2. What are the parameters that affect mostly on the mismatch.
3. What is the case when i should use momentum instead of momentum RF, and Open Boundary instead of Closed ( in the bottom substrate).
Microstrip line is a very simple structure.
1) In Momentum, increase the mesh frequency (even up to twice as simulation frequency), use edge mesh. You can even use Transmission line mesh, but if you increase your mesh frequency it's not necessary
2) In measurement, be sure to conduct a de-embedding. When you are measuring, cables should not be bent or twisted.
---------- Post added at 04:01 ---------- Previous post was at 04:00 ----------
If you simulation frequency is low, use Momentum RF
If it's high, use Momentum, personally I always use Momentum since it's more accurate.