7 Threads found on edaboard.com: Poor Convergence
convergence is a concept in simulators. Are you using a simulator? When it evaluates your circuit, it runs the values through calculations, and repeats the process, until it converges on a stable output (for that timeframe). Then the simulator goes on to calculate the next timeframe.
If it cann
RF, Microwave, Antennas and Optics :: 11-21-2015 13:41 :: BradtheRad :: Replies: 4 :: Views: 647
I met a problem when I use HFSS's Driven Terminal to simulate a structure. It is a warning, "Fast sweep setup, process hf3d: poor convergence in seeding data." My simulation setup is following,
Solution Frequency: 14.25GHz
- Adaptive Solutions
Maximum Number of: 20
Maximum Delta S: 0.02
- Adaptive Options
Electromagnetic Design and Simulation :: 10-11-2013 23:17 :: jianke :: Replies: 0 :: Views: 787
I am using a metamaterial as superstate to enhance gain of antenna.When i use 10 pass with center frequency 2.5 GHz for the frequency range of 1-3 GHz using fast sweep i got good result.But when i use 10 pass with center frequency 2 GHz for same frequency range of 1-3 GHz
i got poor both the cases HFSS shows that convergence criteria i
Electromagnetic Design and Simulation :: 09-28-2012 12:45 :: abhisheksarkhel :: Replies: 3 :: Views: 902
I am getting following error in one of my simulation-
Fast sweep setup, process hf3d: poor convergence in computing port dispersion
I require help to understand the following-
1)What is port dispersion?
2)How it effects the result?
3)How to correct it?
Electromagnetic Design and Simulation :: 02-27-2012 02:20 :: abhisheksarkhel :: Replies: 0 :: Views: 1999
I am simulating a 2-18 GHz cavity backed spiral antenna in HFSS but I am getting these warnings (mentioned below) in fast sweep when I decrease the spiral arm width to anything below 0.25 mm. I have searched alot on google and HFSS guides but there is nothing on these warnings.
How can i remove this warning message and what do these war
RF, Microwave, Antennas and Optics :: 12-10-2010 06:49 :: ahsaan :: Replies: 2 :: Views: 4592
Fast sweep setup, process hf3d: poor convergence in computing port dispersion.
this is a warning i have some questions about:
1. what does it refer to?
2. what is "port dispersion"?
3. how can i control or determine the properties of this convergence?
4. to what level this error may effect my results?
Elementary Electronic Questions :: 10-24-2010 11:34 :: mac.feri :: Replies: 1 :: Views: 3077
I use CST MICROWAVE STUDIO 2008....
(sorry .. my english is poor)
There is a aperture of nano-size on the surface of the metal(gold) and we
emission the plane wave foward to the aperture and observe the Power flow distribution.
(frequency : 309Thz , wavelength : 970nm )
This is what I simulate now...
Not error is occured but the re
Electromagnetic Design and Simulation :: 11-03-2009 01:01 :: happytgt :: Replies: 0 :: Views: 1670