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  • Problems with IIP3 with PSS and PAC analysis

    Hi I am working on a (passive like) CMOS attenuator and my problem is that when I do the IIP3 with PSS and PAC analysis my third harmonic is not increasing by 3dB. It is much lower. Me and my thesis supervisor did the transient analysis and did the calculations, we know that the third harmonic is increasing...
    Posted to RF Design (Forum) by Jesture on Thu, Sep 4 2014
  • Centering a PAC around a PSS oscillator outcome

    Hi All, I would like to run a Periodic AC analysis (PAC) at frequencies around a carrier not known a priori. That is, I have an oscillator whose frequency - of course - is to be determined by simulation. The natural way of simulating an autonomous system and get this information is with the Periodic...
    Posted to RF Design (Forum) by MicheleA on Fri, Jun 13 2014
  • Re: injection locked oscillator phase noise simulation using pss+pnoise

    Here is the article: When simulating an injection locked oscillator and looking at the startup waveform, you are looking for the point where the timing of the oscillator output is stable with reference to the injection source. Note that the amplitude must be at steady-state as well. When you set up your...
    Posted to RF Design (Forum) by Tawna on Fri, May 23 2014
  • Transient results as starting point in PSS

    Hello, Could we use the transient analysis results as a stabilization point (tstab) for PSS analysis? If so, how could we acheive it? Is there any documentation on this? Any inputs will be helpful. Prakash.
    Posted to RF Design (Forum) by pthoppay on Mon, Mar 10 2014
  • Does rfTlineLib in IC616 support PSS?

    mtline in IC615 does not support shooting based PSS, will this mclin components in rfTlineLib support pss shooting in ic616? Thanks!
    Posted to Feedback, Suggestions, and Questions (Forum) by jyang on Sat, Feb 15 2014
  • Unable to run PSS Analysis

    Sir, I have used BSIM-CMG107.0.0 Mosfet Compact model for my thesis work. But when I go for pss analysis, an error is shown saying that the behavioural file that you have given is not supported for pss analysis. The model is actually a verilog-A file. It would be grateful if you give me any solution...
    Posted to RF Design (Forum) by aravindkvarier on Tue, Feb 11 2014
  • Re: pss insufficient memory problem

    Hi, 1. Yes, MMSIM10.1 and 12.1.X are a lot different. Better yet, go to 13.1. 2. That is not what I was asking for. In the netlist, there is a "save" statement. It will tell how many nodes and nets are saved. If you "save all" (for example), that can cause issues. Saving only selected...
    Posted to RF Design (Forum) by Tawna on Fri, Jan 24 2014
  • Re: pss insufficient memory problem

    For questions like this, it is better to file a Case with Customer Support . Your versions of spectre are very old. You should be using MMSIM 12.1.1 or better yet MMSIM 13.1 . You didn't mention how many nets/nodes that you were saving. Only save the most important ones. It is helpful to see the...
    Posted to RF Design (Forum) by Tawna on Fri, Jan 24 2014
  • pss insufficient memory problem

    Dear Team, I am using virtuoso 6.1.5 version running pss, errors are found in the CDS.log window, sayin:"INFO (ADE-3069): Errors encountered during simulation. For more information, see the log files accessible from the Simulation -> Output Log menu." But the spectre.out file shows "onv...
    Posted to RF Design (Forum) by jyang on Fri, Jan 24 2014
  • RF Front end Receiver

    Hi, We are designing a RF Front end receiver in which we are proceeding with a PSS, PAC, etc analyses..... 1. We have plotted Conversion Gain Vs LO power by doing PSS followed by PAC analyses. So, can we plot the same CG by varying RF. 2. Can we plot Noise Figure Vs RF frequency. Please, get me the valuable...
    Posted to RF Design (Forum) by Kiran1507 on Mon, Jan 20 2014
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