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RF design,Circuit Design

  • 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
  • New Time-Saving Feature in IC6.1.4 ISR2: Plot S-Parameter Data Directly From ViVA!

    If you haven't heard about it....there is a new feature in IC6.1.4 ISR2 which makes troubleshooting circuits containing nports ( s-parameters ) much easier and faster! Starting i n IC6.1.4 ISR2, you can now plot s-parameters directly in ViVA (without having to create a test bench and run a Spectre...
    Posted to RF Design (Weblog) by Tawna on Thu, May 20 2010
  • NPORT S-Parameter Model Enhancements

    In MMSIM 7.2, two new parameters have been added to the Spectre nport primitive: datatrunc and causality . In MMSIM 7.1, passivity checking was added. The nport now has causality correction, passivity checking and enforcement, and the ability to remove small couplings terms from the input s-parameter...
    Posted to RF Design (Weblog) by Tawna on Wed, Dec 30 2009
  • Getting a Feel for RF

    It was a delight when I read the blog by Bill Schweber of TechOnline's RF DesignLine titled “ Getting some basic RF experience ”. I was surprising pleased that somebody took the time to talk about how one might get the feel for RF. That is because what Bob talks about is more or less...
    Posted to Custom IC Design (Weblog) by TomC on Wed, Apr 29 2009
  • 2009 RFIC Symposium in Boston - Are You Going?

    If you are an RFIC designer then I hope you are planning on attending the 2009 RFIC Symposium and the International Microwave Symposium (IMS) which will be held in Boston, Massachusetts, as the centerpieces of Microwave Week 2009, scheduled from Sunday June 7 through Friday June 12, 2009. The 2009 RFIC...
    Posted to RF Design (Weblog) by TomC on Mon, Apr 27 2009
  • Calculating Large Signal Phase Noise Using Transient Noise Analysis

    My name is Alan Whittaker and I'm in Cadence's Custom IC Proliferation Group. We support Cadence's Technical Field Organization (the AEs) and Cadence customers during the introduction and adoption of new and advanced EDA technologies. I'll be posting here from time to time on methodologies...
    Posted to Custom IC Design (Weblog) by alanw on Thu, Mar 26 2009
  • Your Virtuoso MMSIM Portfolio 2009 Performance Outlook

    John Pierce, Product Marketing Director for Virtuoso Simulation application gives us some words of wisdom when it comes to getting the most from your simulation investment in 2009. John writes: “In 2008 your investment in Virtuoso MMSIM had tremendous returns: Spectre ‘Turbo’ Technology...
    Posted to Custom IC Design (Weblog) by deana on Tue, Feb 10 2009
  • Tip of the Week: Guidelines for getting accurate HB QPSS/QPNoise results

    Two of the most important parameters for accuracy are: (1) maxharms (2) oversample maxharms: The accuracy of HB is greatly dependent on the number of harmonics chosen. As a general rule, you should simulate with with maxharms [5 3] and (if memory allows) re-simulate with maxharms [7 3] to see if the...
    Posted to RF Design (Weblog) by Tawna on Fri, Jan 9 2009
  • Going broadside with electromagnetic modeling of advanced processes

    It has caught my attention that designs using fabrication processes such as 65nm, 45nm, 32nm, and smaller, have changed the landscape when it comes to electromagnetic (EM) modeling of components and interconnects. These designs have to contend with the pronounced effects of increased broadside coupling...
    Posted to RF Design (Weblog) by TomC on Thu, Oct 9 2008
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