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LNA output noise floor at receiver front end.
Hi,i am designing a broadband (100 MHz -6 GHz BW) receiver chain for radar/rcs measurement tester. i will put Low noise amplifier after antenna input followed by mixed(10 MHz IF BW and digitizer.I am...
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Gilbert mixer IIP3
Hi all,I am having trouble plotting the IIp3 of gilber RF mixer I madeI have plotted 1 dB compression point using QPSS and QPAC simulation. flo=2.42GHz and frf=2.4GHz , 20 MHz IFHowever my IIp3...
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extracting s2p file
Hello, i managed to extract my S-param data into vcsv file,however i need a standart S2P fileis there a way to do it in cadence virtuoso?Thanks.
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input output circle equivalent in cadence virtuoso
Hello, There is a manual in matlab of matching LNA shown in the link bellow.In it as shown in the plot bellow they mention input and output circle plots.Is there such option of input and output circle...
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pnoise pmjitter simulation
Hi, when I applied a voltage divider implemented by two 100-ohm resistors to a 2Vpp 5GHz vsin source, the phase noise simulation using pnoise/fullspectrum with different types, jitter and source have...
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Spectre HB simulation issue
Hi,i'm using spectre HB simulation on PA (Power Amplifier) test_bench to perform large signal analysis (i want to plot Output power vs intput power, PAE and Gain)Although the simulation returns no...
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Sweep harmonic balance (hb) realibility (aging) simulation
hi everyone, i'm trying to create a netlist for aging simulation. i would like to simulate how power, Gain and PAE (efficiency) are inlfuenced after 3 hoursi would be grateful if someone can correct my...
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The LSSP spectre simulation (Cadence 5) fails with the following error
What is the meaning of this error?I used already two ports (PORT1 and PORT2 for input and output,...
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Exporting Sprobe Data to File
Hi,Is there a way to export the data from the Sprobe component to a file (e.g. s1p)?Thanks
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discrepancy between spectrum peak value and calculator value in Direct Plot...
Hi, After running "hb simulation", when I plot a spectrum it shows multiple values at one frequency and Cadence calculator uses 2nd peak value instead of 1st peak value.in attached figure, two...
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BSIM4 import into AWR
Hello,I am trying to import a cadence BSIM 4.4 model file (.scs) into AWR from a foundry PDK (built for Spectre RF). The parsing and symbol creation go through fine but it comes up with a load of...
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Noise signal as input to RF receiver
Hi,I want to give a noise signal as input to RF receiver and see its amplification and filtering at various stages of receiver chain.How can I give noise signal (-174dBm/Hz) as input to circuit ?If I...
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*Error* eval: unbound variable - ana
Hi AllI am using IC6.1.4 and I am trying to simulate a circuit.when I choose the HB analyses in ADE,as I select one of the options of accuracy defaults I get this error:*Error* eval: unbound variable...
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Transient Simulation of Crystal Osc
I'm simulating a 24MHz crystal OSC with spectre APS MMSIM/18.10.397 I have the startup simulation and ic transient noise simulation which is working fine starting up in 5ms and oscillating without...
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Error in importing .brd file in Ansys HFSS
Hello All,I have been trying to import the .brd file to HFSS, but everytime I get error "Extracta view creation failed". I'm made sure that extracta.exe is installed in the cadence folder as well as...
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VSS CoSimulation NL_S Nonlinear frequency response
Hi,This is regarding a problem encountered with VSS CoSimulation with circuit simulator APLAC_HB. The circuit is a simple low pass LC filter. Basically I am not getting the same frequency response...
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This question about how can i get (old) workshop materials.
hi sir , have a nice day1. Are your old workshop materials deleted from the site?2. Will a new version of the workshop material be updated and deleted when it comes up?Or are both maintained?3. Is it...
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stb analysis outputs
Hi,I have a question about the stb analysis outputs in cadence.I believe the way stb analysis works in spectre is based on Kundert's paper on small signal stability with double injection method:...
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Documents for using EMX for EM simulations of inductor and Transmission LIne
Dear All,I am looking for documents (with examples) for using EMX for EM simulations of inductor and Transmission LIne.Can anybody please point me so that I can dig into those.Kind Regards,
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How to use a Lossless Transmission Line in Spectre Transient analysis
Dear All,I need to simulate an ideal lossless transmission line with characteristic impedance= Z0 and delay=tau in TRANSIENT simulation.I went through...
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