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RF Design

  • Simulating Quadrature Injection locked multiplier (tripler) in Cadence

    Hello Initial information - Using Cadence virtusoso 6.1.5-64b & spectre simulator for designing the followingquadrature injection locked frequency tripler. circuit Diagram - The first input I gave was a 14.66GHz signal The frequency spectrum of the output is as below: ANd then I changed the input...
    Posted to RF Design (Forum) by rohan kr on Sun, Sep 22 2013
  • Re: [Help]Issues regarding Extraction

    Hi Andrew, Thanks for your advice,Still I have some doubts... Tool version: cadence IC614,ASSURA410,MMSIM 101 I am using two scripts to invoke tool,in that certain variables are used to set lib paths.After invoking tool,Library viewer shows paths are valid and in that analogLib mapped into IC614.But...
    Posted to RF Design (Forum) by hsps on Tue, Sep 10 2013
  • about stability (kf,b1f) simulation for mixer

    Dear All, I would like to know whether we can use the sp or (psp or hbsp) to simulate the stability (kf, b1f) performance for a circuit like mixer (or Tx or Rx). K factor (kf) and b1f are used to check the stability of a linear circuit, right? Does this mean that we can not use these parameters to check...
    Posted to RF Design (Forum) by Jackie Lau on Mon, Aug 26 2013
  • Double gate device for RF design

    Sir, How can we get a double gate FET or FINFET in Virtuoso Analog Design Environment for RF design??? do we want to go for some additional library files for extracting the cell??? If so, can you specify the path needed for the same???
    Posted to RF Design (Forum) by ARAVIND K on Fri, Jun 21 2013
  • SpectreRF at 2013 IEEE/MTT-S International Microwave Symposium in Seattle, Washington

    If you are attending the International Microwave Symposium ( IMS 2013 ) in Seattle (June 2-7, 2013) stop by the Cadence Design Systems booth, #427. We will be showing new MMSIM12.1.1 features including “Smart” HB GUI, Robust and easy to use nport (for s-parameter input), and the Transmission...
    Posted to RF Design (Weblog) by Tawna on Thu, May 23 2013
  • Simulating Crystal Oscillators is Much Easier in MMSIM12.1 - Part 2

    Greetings, Simulating crystal oscillators got a lot easier in MMSIM12.1... We have made enhancements to both Harmonic Balance and transient analyses. In Part 1 , I discussed Improvements to the Harmonic Balance use model. With the new streamlined Choosing Analyses form, you now can focus on getting your...
    Posted to RF Design (Weblog) by Tawna on Thu, Dec 20 2012
  • Simulating Crystal Oscillators is Much Easier in MMSIM12.1 - Part 1

    Greetings! Simulating Crystal Oscillators got a lot easier in MMSIM12.1... We have made enhancments to both Harmonic Balance and Transient analyses. In Part 1, I’ll cover Improvements to the Harmonic Balance use model. With a streamlined Choosing Analyses form you can now focus on the simulation...
    Posted to RF Design (Weblog) by Tawna on Wed, Dec 19 2012
  • PSP analysis for calculating capacitance looking into the drain of the nfet_rf

    Hello All, I am trying to calculate the value of the capacitance looking into the drain of the transistor using Y11 parameters( imaginary part). The problem I am getting is " I get a resonant peak" . I do not understand why? Can anyone help me with the explanation? The circuit that I am using...
    Posted to RF Design (Forum) by Grad Student on Tue, Dec 18 2012
  • MMSIM12.1 SpectreRF Preview of Coming Attractions! - Part 1

    Greetings! MMSIM 12.1 contains many new features to aid RF designers. Here's a preview of the changes... Documentation Improvements The SpectreRF User Guide is being completely rewritten and updated for MMSIM12.1. Check it out - I'm sure you'll really like it! Harmonic Balance Improvements...
    Posted to RF Design (Weblog) by Tawna on Mon, Nov 12 2012
  • Re: What is the use of No of harmonics option in PSS form

    Hi yxue, In harmonic balance, the number of harmonics chosen does affect accuracy. There is a blog and a solution on this: Here is the Blog: Guidelines for Maximizing Speed vs Accuracy for Harmonic Balance - Part 2. http://www.cadence.com/Community/blogs/rf/archive/2011/11/01/guidelines-for-maximizing...
    Posted to RF Design (Forum) by Tawna on Tue, Oct 2 2012
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