Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

PSS question for P1dB in LNA

Status
Not open for further replies.

liletian

Full Member level 6
Joined
Mar 5, 2008
Messages
337
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,298
Activity points
3,790
Hi Guys
WHen I simulation the LNA P1dB using PSS. If I sweep the power range is large, the PSS always has convergence problem.
I am wondering if someone else have the same problem and have a solution to allow PSS to converge for high imput power?
Thanks
 

pancho_hideboo

Advanced Member level 5
Joined
Oct 21, 2006
Messages
2,847
Helped
767
Reputation
1,534
Reaction score
723
Trophy points
1,393
Location
Real Homeless
Activity points
17,468
What simulator do you use as PSS ?

There are many simulators which have analysis called as PSS.
This is very true for your another post.
https://www.edaboard.com/threads/209913/

Always describe the followings for tool or simulator which you use.
- vendor's name
- correct tool's name without any abbreviation
- version
 
Last edited:

BigBoss

Advanced Member level 5
Joined
Nov 17, 2001
Messages
5,394
Helped
1,554
Reputation
3,110
Reaction score
1,435
Trophy points
1,393
Location
Turkiye
Activity points
32,503
Hi Guys
WHen I simulation the LNA P1dB using PSS. If I sweep the power range is large, the PSS always has convergence problem.
I am wondering if someone else have the same problem and have a solution to allow PSS to converge for high imput power?
Thanks
SPSS is generally a simulator with some convergence problems.The most of them come from model data and some of them from topology.
If you have used floating nodes/very small resistance branches/series components without branching anywhere etc... those create some problems of matrix eigenvalues...
So, the base of the problem is mathematical..
There are some options in option tab in this simulator conrtol panel..Putting a very small capacitor ( 1aF or 1fF) )to every node ,increasing settling time.. decreasing tolerances etc..
You should play with those parameters to get a robust result..
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top