In particular it refers to parallel tank oscillators of which the energy restoring can be modeled through a train of current pulses. Virtuoso spectre circuit simulator and accelerated parallel. Rfde is embedded in the cadence affirma analog design environment and is accessible to designers the same way as cadence composer schematic editor, assuradiva layout. Tsek03 integrated radio frequency circuits 2018ted johansson 426 2. Affirma rf simulator spectrerf user guide simulating mixers april 2001 148 product version 4. Setup up the pss simulation 3 in the analog artist simulation window, select simulation options analog. Affirma rf simulator spectrerf user guide, an introduction to the pll library. The coexecution simulator product is a heterogeneous simulation engine that optimizes both the execution of a singlelanguage model and the concurrent execution of a mixedlanguage, multiparadigm model. Several design topologies are available to help you to balance noise and gain matching. This manual describes the components in analoglib that are supported by rfic dynamic link and rf design environment. Try to plot your results in the result window and compare with those in the manual. The simulation results obtained in this chapter and measured results of subblocks of the chip designed in chapter 5 contribute to the optimum design and implementation of fractionaln synthesizers presented in chapters 5 and 6. Affirma rf simulator spectrerf user guide using pdisto effectively.
Mft also performs better than traditional algorithms such as harmonic balance when solving highly nonlinear problems. Pdf noise analysis and simulation of chopper amplifier. Use discrete fourier transform dft for better accuracy. Table 12 rf input signal distortion in nonlinear lnas harmonic distortion a nonlinear lna might. Simulation of rf transmitter in spectrerf forum for electronics. This manual is intended to introduce microelectronic designers to the cadence design environment, and to describe all the steps necessary for running the cadence tools at the klipsch school of electrical and computer engineering. Plot the hbac analysis results with the rapid ip3 function from the direct plot form.
The option includes periodic steadystate, smallsignal, and noise analyses along with harmonic balance analysis capabilities to maximize performance without loss in accuracy. The cadence spectre rf option provides numerous rf analyses built on siliconproven simulation engines in both the time and frequency domain simulation. Cell design tutorial and virtuoso layout editor user guide summary of cadence tool setup. Virtuoso spectre circuit simulator rf analysis user guide. Spectrerf electronic circuit simulators info about.
It delivers the full capabilities of the cadence nc verilog simulator and the new affirma nc vhdl simulator with a single license. Spectre circuit simulator and accelerated parallel simulator rf analysis in ade explorer user. For more information about using the spectre circuit simulator with veriloga, see the veriloga language reference manual. You can also set up an appropriate qpss analysis to measure largesignal gain.
The spectrerf user guide is being completely rewritten and updated for mmsim12. It was spectrerf, released in 1996, that was the first simulator to focus primarily on rf circuits as evidenced by the name and the first simulator to employ krylov. System simulation of based fractionaln synthesizers. If you want to see how spectrerf is run under the analog circuit design environment, read virtuoso spectrerf simulation option user guide.
A collection of useful example models can be found on the verilogams page. Affirma rf simulator spectrerf user guide using pdisto. Affirma rf simulator spectrerf user guide department of. The designers guide to spice and spectre by kenneth s. Harmonic balance has been improved in four major ways. Citeseerx affirma rf simulator spectrerf user guide using. Virtuoso spectrerf simulation option user guide product version 5. In the affirma window click on the results direct plot main form pss. At the same time, optimized mixedsignal radio architectures including digital compensation techniques that overcome the limitations and inaccuracies of the analog frontend must be developed.
Affirma spectre circuit simulation user guide and affirma rf simulator user guide 8 further reading on layout. The designers guide community website is a place where analog, mixedsignal and rf circuit designers come to learn about simulation, modeling and design. To supply a lo input to the mixer, use a port port1 with a matching resistor and transfer the singleended signal into the. Derivation of floquet eigenvectors displacement for optimal. Rfsim99 is a freeware software that can help you in rf simulation, in your projects, especially if you are trying to design radio filters. Pdf spectrerf workshop mixer design using spectrerf. Virtuoso spectre circuit simulator and accelerated parallel simulator user guide product version 10. Both rfic dynamic link and rf design environment come with a modi. To learn more about performing the rapid ip3 analysis, watch this video. Most of the complexity inherent to full sized spectrum analyzers is simplified with automatic functionality resolved by the firmware. Affirma spectre circuit simulator user guide june 2000 3 product version 4. Simulating switched capacitor circuits with spectrerf. Affirma rf simulator spectrerf user guide april 2001 5 product version 4. Virtuoso spectre circuit simulator rf analysis user guide product version 6.
The paper presents an approximated and compact derivation of the mutual displacement of floquet eigenvectors in a class of lc tank oscillators with time varying bias. A comparison between the simulation and the calculation results shows effectiveness and efficiency of this method in dealing with chopper. New affirma simulators from cadence aim to transform deep. Examples of schematics based on gallium nitride gan, polysilicon, silicon carbide sic fixedfixed beam rf mems resonators and oscillators, as well as golden capacitive fixedfixed beam and ohmic cantilever rf mems switches, are available upon request. There is no need to read large user manuals to get advantage of its advanced functionality. The rf signal frequency used for the simulation is around 5001 mhz. For more information, refer to the spectrerf user guide appendix l using psp and pnoise analysis. The information contained in this document cannot be used in the development of like products or software, whether for internal or external use, and shall not be used for the benefit of any other party, whether or not for consideration. Tutorial of spectrerf simulations no submission required. Affirma rf simulator spectrerf user guide manualzz. Note if the conv norm is less than 1 or if the pss simulation has a.
Virtuoso spectre circuit simulator and accelerated. For more information about how you work with the design framework ii interface, see. This tutorial will introduce the use of cadence and spectrerf for. Oct 03, 2020 the simulation results for a designed circuit are given. Mft approach is more efficient than transient circuit simulation when inputs are stiff with large time constants. View lab report affirma spectre rf simulator user guide from elec 6 at. For more information about rf theory, see spectrerf theory. You may want to refer to spectrerf user guide appendix l using psp and pnoise analysis for more details. In the affirma window click on simulation netlist and run to start the simulation, make sure that simulation completes without errors. Tsek03 integrated radio frequency circuits 2018ted johansson 126 tsek03 lab 1. Challenges in rf simulation ken kundert ieee rfic symposium, 2005 it has been 10 years since the first rf circuit simulator was released. There are a number of very practical papers on simulation and modeling on the analysis, modeling, and theory pages. Measuring rapid ip3 rf design cadence blogs cadence.
Since floquet eigenvectors are acknowledged to give a correct decomposition of noise. I want to simulate the complete tx using a real cellular signal, such as cdma or lte. For more information about rf theory, seespectrerf simulation option theory. Affirma spectre circuit simulator user guide to parent directory. Enables verification of designs with complex modulated signals. As such, he has led the development of spectre spectre hdl, and spectrerf he was also the primary white was a significant early contributor to the development of spectre and spectrerf. After the simulation completes, go to the virtuoso analog design environment window and choose results print hbac distortion summary. If you want to see how spectrerf is run under the analog circuit design environment, readspectrerf simulation option user guide. Audience users of spectrerf in the virtuoso analog design environment. Rf simulators exploit the sparse nature of this spectrum in various ways and with varying degrees of success. Simulation of rf transmitter in spectrerf forum for. Noise figure measurement and periodic sparameter plots.
In the affirma window click on the results direct plot main form pss the pss results window appears. Massachusetts institute of technology department of electrical. Spectre comes in enhanced versions that also support rf simulation spectrerf and mixed signal simulation ams designer spectre is currently principal architect of the spectre circuit simulation family. As the simulation progresses, messages similar to the following appear in the simulation output log window. For more information about rf theory, seevirtuoso spectrerf simulation option theory. With all the settings in place, run the simulation. Derivation of floquet eigenvectors displacement for. Rf explorer spectrum analyzer user manual page 5 introduction rf explorer has been designed to be intuitive and easy to use.
The designers guide community website is a site where analog, mixedsignal and rf circuit designers come to learn about simulation, modeling and design. The wide range of analyses provides design insight and enables verification of broad rfic types, including. This manual is intended to introduce microelectronic designers to the cadence design. I am trying to simulate my transmitter tx design in spectrerf cadence. Use a port component and match impedance for each of the inputs and the output. The spectre rf option provides accurate and fast simulation for rfic circuits.
For more information about rf theory, see spectrerf simulation option theory. Virtuoso spectre circuit simulator rf analysis user guide the lab is based. Design and simulation environments efficiently combining the assets of both are needed. Citeseerx affirma rf simulator spectrerf user guide. If it is hard to converge set the tolerance options looser. Jan 17, 2011 these benefits are provided within the cadence design flow and cadence simulation user interface and side by side with established cadence tools such as spectre and spectre rf. Use, duplication, or disclosure by the governme nt is subject to restrictions as set forth in far52. The wide range of analyses provides design insight and enables verification of broad rfic types, including mixers, transceivers, power amplifiers, dividers, switched capacitors, filters, and. If you want to see how spectrerf is run under the analog circuit design environment, read spectrerf simulation option user guide. Lab2 tutorial gilbert mixer simulation cadence spectrerf. Different simulators can be employed, some sold with the cadence software e.
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