Using The Composite Triple Beat Source to Speed up QPSS Analysis
By Tawna Wilsey
on January 14, 2010
Say you have a design with 4 input frequencies: 3164M (vco), 1449M (tone0), 1456M (tone1), 1442M (tone2). Currently when you do a qpss analysis, you are inserting a total of 4 separate ports in your schematic and running a simulation. There is a divide...
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Filed under: RF design, RF Block Simulation, Virtuoso Spectre, Virtuoso Spectre Simulator GXL, Spectre RF, Virtuoso Spectre Simulator XL, Harmonic Balance, spectreRF, RFIC, MMSIM, QPSS Analysis, Composite Triple Beat, CTB
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NPORT S-Parameter Model Enhancements
By Tawna Wilsey
on December 30, 2009
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...
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Filed under: RF design, Circuit design, RF Block Simulation, Virtuoso Spectre, Virtuoso Spectre Simulator GXL, Spectre, Spectre RF, Virtuoso Spectre Simulator XL, Harmonic Balance, spectreRF, MMSIM71, RFIC, MMSIM, Circuit simulation
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Analyzing Distortion With Spectre RF
By Arthur Schaldenbrand
on December 18, 2009
Greetings, In the previous appends, we looked at using Shooting Newton Periodic Steady-State analysis to analyze analog circuits. In this append, we will look at using Harmonic Balance Periodic Steady-State, HBPSS, to analyze analog circuits. HBPSS is...
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Filed under: RF design, Spectre RF, PSS, FFT, Distortion
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RF Measurement Library: Capturing Circuit Characterization Setups on the Schematic
By Alan Whittaker
on July 16, 2009
Another design approach that Cadence supports that may not be obvious to all users… The process of setting up a circuit simulation has historically been one of setting up all of the simulation control parameters (i.e. which analysis you want to...
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Filed under: RF design, RFIC, RF Measurement library, Circuit simulation, Custom Design, design framework
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Periodic Steady-State Analysis for DC-to-DC Converters
By Arthur Schaldenbrand
on June 30, 2009
In " Spectre RF by any other name ...", a non-RF application for Spectre RF's periodic steady-state analysis was introduced. An example of using periodic steady-state analysis [PSS] to simulate the dynamic performance: THD and SFDR, of a...
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Filed under: RF design, Spectre RF, DAC, PSS, DC-to-DC converters, shooting newton, SFDR, THD
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Join us at the Cadence booth at the International Microwave Symposium
By Hany El Hak
on June 8, 2009
If you listened to Tom's advice on this blog two months ago and registered for the International Microwave Symposium or the RFIC symposium, then you should be at the Boston Convention center now enjoying RFIC talks. Please remember that we are waiting...
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Filed under: RF design, Spectre RF, RFIC, Virtuoso, International Microwave Symposium
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Enhanced pnoise Algorithm to Compute Phase-Noise for VCOs with Bandgap Voltage Reference
By Helene Thibieroz
on May 1, 2009
Accurate phase-noise characterization is critical in the design of RF and microwave communication systems. SpectreRF ’s shooting PSS/Pnoise analysis has been the golden simulator for the phase-noise simulation, and close correlation between the...
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Filed under: RF design, DC, VCO, IC Voltage, MMSIM
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2009 RFIC Symposium in Boston - Are You Going?
By Thomas Costas
on April 27, 2009
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...
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Filed under: RF design, Circuit design, wireless integrated circuit verification, Spectre, Virtuoso Spectre Simulator XL, Harmonic Balance, spectreRF, RFIC
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Spectre RF By Any Other Name ...
By Arthur Schaldenbrand
on April 22, 2009
It has been a while since I last appende d , hope you are well! It was a little bit difficult to come up with a subject to write about and then recently I was in a meeting where we were talking about transient noise analysis. A designer was discussing...
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Comments (4)
Filed under: RF design, Spectre RF, DAC, ADC
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Setting VIVA Waveform Color Defaults When Using ADE
By David Neilson
on April 21, 2009
I found myself getting a little bit frustrated with some of the default colors that would come up in the VIVA waveform tool while I was plotting from the Analog Design Environment (ADE). After working with Kabir, the Product Engineer for VIVA, I discovered...
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Comments (3)
Filed under: RF design, Virtuoso Spectre, Spectre, spectreRF, MMSIM71
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