- 易迪拓培训,专注于微波、射频、天线设计工程师的培养
ADS LSSP simulation non convergence errors
I simulate the PA using model from Infineon. I can't do the load-pull properly because of non- convergence errors. Additionally when i run LSSP simulation the results is the same. When i decrease the input power by 5-10dB from saturation level the problem dissapears. HB for single tone when i make some changes at setup (Krilov method) i can work at saturation levels.
I used to work with AWR and never see such problems. Is it model fault or i do something wrong?
Hello bubuta,
Yes, it may be due to inefficient model development ....Also change the convergence settings in MWO HB...
Try upload your MWO file here, we can help you better....
Unfortunately i don't have AWR model it's a reason why i move to ADS. It's really start to look like model problem because when i make same simulation with different tranzistor (Freescale one) it works pretty fine without my changes at HB setup. Anyway thanks
in HB Controller block, there are different options targeted to specific problems.You'd better to read the principles of HB method and research in application notes of Agilent to resolve your problem.
adding farther, under HB solver you can change solver type, increase iterations, and convergence mode and combination of these.
First, increase harmonics of HB to 31.
Second, increse over sample number, such as 2, 4, 8, ....
See The Designer's Guide Community Forum - maxstep in shooting-envlp of Cadence Spectre
And try to set Transient-Assisted-HB manually.
Don't use automatic set for it.
I know, It converges when Krilov solver is set and at advanced settings the preconditioner set to SCP (it's for highly non-linear devices - i do read the manual). But still the behaviour is not stable change of some parameter can cause to non-convergence. Additionally the LSSP can't converge.
I move to freescale model - works pretty fine
申明:网友回复良莠不齐,仅供参考。如需专业帮助,请学习易迪拓培训专家讲授的ADS视频培训课程。
国内最全面、最专业的Agilent ADS培训课程,可以帮助您从零开始,全面系统学习ADS设计应用【More..】
- Agilent ADS教学培训课程套装
- 两周学会ADS2011、ADS2013视频教程
- ADS2012、ADS2013射频电路设计详解
- ADS高低阻抗线微带滤波器设计培训教程
- ADS混频器仿真分析实例视频培训课程
- ADS Momentum电磁仿真设计视频课程
- ADS射频电路与通信系统设计高级培训
- ADS Layout和电磁仿真设计培训视频
- ADS Workspace and Simulators Training Course
- ADS Circuit Simulation Training Course
- ADS Layout and EM Simulation Training Course
- Agilent ADS 内部原版培训教材合集