The Designer's Guide Community
Forum
Welcome, Guest. Please Login or Register. Please follow the Forum guidelines.
Mar 29th, 2024, 4:45am
Pages: 1
Send Topic Print
LNA Gain Measurement:No Convergence problem (Read 460 times)
ravigupta
New Member
*
Offline



Posts: 3
Austin,Texas
LNA Gain Measurement:No Convergence problem
Jun 22nd, 2003, 9:51pm
 
Hi ..
I have been trying to plot the voltage gain of the LNA , but I get an error:
"Convergence  difficulties resulted in error requirements being unsatisfied"
and so the simulation goes on indefinitely.
From the cadence documentation I found that this might occur if there are multiple periodic stimuli and their stimulus frequencies are not co periodic (and multiple of PSS analysis period).But I just have one voltage source in my circuit.(the circuit is the same as page 289 of "The Design of Cmos  RF Integrated circuits"by Thomas Lee").
Can anyone suggest what might be the cause of no convergence ?
Also,a very fundamental question , does the PSS analysis period correspond to the fundamental frequency of the source we use ?
Thanx,
Ravi
Back to top
 
 
View Profile toravigupta   IP Logged
Forum Administrator
YaBB Administrator
*****
Offline



Posts: 145

Re: LNA Gain Measurement:No Convergence problem
Reply #1 - Jun 24th, 2003, 1:32am
 
This same post was made in the "RF measurements" board.

Please do not post duplicate messages to multiple boards on the forum.
Back to top
 
 
View Profile WWW   IP Logged
Pages: 1
Send Topic Print
Copyright 2002-2024 Designer’s Guide Consulting, Inc. Designer’s Guide® is a registered trademark of Designer’s Guide Consulting, Inc. All rights reserved. Send comments or questions to editor@designers-guide.org. Consider submitting a paper or model.