Clik here to view.
How to extract the Resistance and Reactance of a Inductor?
Hi,Giving the geometry, radius, width, and turns, the rough inductance(Lind) and quality factor(Qind) can be computed. This can be viewed from the property of a modelled Ind device (say,...
View ArticleClik here to view.
Unable to select extracted view nets for Pnoise simulation
Hello,I apologize if this isn't the right forum to ask this question, but I'm in a rush so I'm going to ask anyway.When I'm using an extracted view net for running Pnoise simulation, ADE simply refuses...
View ArticleClik here to view.
PPV values from pss/pnoise simulation in spectreRF
I would like to see the perturbation projection vector(PPV) which is used, e.g. to calculate phase noise in an oscillator.I read an old presentation on "Noise aware PLL plugin"...
View ArticleClik here to view.
Training Course: Switched Capacitor Circuit Simulation with Spectre and APS RF
SpectreRF can't just be used for RF circuits, but is also very useful for switched capacitor circuits (see e.g....
View ArticleClik here to view.
Envelope Simulation of a FM VCO.
Hi,I'm having a VCO and trying to modulate the control voltage of the VCO and check the output spectrum.The difference between the oscillator frequency and the modulation frequency is huge. Therefore,...
View ArticleClik here to view.
Font problem in cadence virtuoso
I am accessing cadence virtuoso from the server through putty and xming. When I am opening virtuoso help it is not showing in correct font, instead it is showing some square boxes in place of letters.
View ArticleClik here to view.
Verilog A code with lookup table
Hai,I have a doubt in TFET based Mixer circuit design. Actually I have downloaded InAs TFET model generated by PennState University. This model is having verilog A code and lookup table for current and...
View ArticleClik here to view.
Simulating positive-edge and Negative edge phase noise of a divider
Dear All,We want to simulate the phase noise of the divider at the rising edge and falling edge separately.Could anybody please tell how it can done in Spectre and Pnoise simulation ?Kind Regards,
View ArticleClik here to view.
Virtuoso and momentum - Generating substrate file for UMC 180nm model
Hi every one,Can any one describe a procedure on how to create a substrate file(.ltd or .slm) for Momentum simulation.Thanks and RegardsShravan S M
View ArticleClik here to view.
Doing PSS+PNOISE or PAC for Discrete-Time System in SpectreRF
Dear All,I have some blocks like Discrete time filter and receiver.The output are discrete in time. i.e. Vout exsits only for n.Ts where n ={0,1,2,3............}.I saw some white paper of Cadence but...
View ArticleClik here to view.
Simulation of IGFinFET in cadence
Hai,I am trying to simulate 20nm IG FinFET (downloaded from ece.ut.ac.ir). when I try this code, I am getting errors as follows: (pls find ckt attachment)Warning from spectre during circuit read-in....
View ArticleClik here to view.
CDS_A0_1 AnalogOutput
HelloI would like to use the CDS_A0_1 AnalogOutput model from the SigXplorer library but I found no topology part (no element) to add in the canvas. Where can I find an example?Thanks in advanceRegards
View ArticleClik here to view.
Unable to select extracted view nets for Pnoise simulation
Hello,I apologize if this isn't the right forum to ask this question, but I'm in a rush so I'm going to ask anyway.When I'm using an extracted view net for running Pnoise simulation, ADE simply refuses...
View ArticleClik here to view.
What is the channel model used in the Wireless sources in rfLib?
Hello, communityi'm aware rfLib has several modulated sources, such as Zigbee, LTE and 802.11. While testing Zigbee source, I saw that I can specify SNR. After obtaining the simulation results, I am...
View ArticleClik here to view.
phase of the radiated electric field from dielectric sphere in CST
frequescy 5..10 GHzfor the mie scattering resonance frequency i use 7.5GHzdipole length L=40mmepsilon=16 thus from the formula lambda=sqrt(epsilon)*dso the radius is 4.71mmi put a probe tanjectual to...
View ArticleClik here to view.
Flexible Noise Analysis in circuits with multiple RF Signal pathes
Hi all,I'm currently working on the S-Parameter verification of a pretty big RF block that features one input and multipleoutput ports. The input signal can be switched to different outputs, or even to...
View ArticleClik here to view.
Phase noise simulation of PFD
I tried doing the phase noise simulation of a PFD using Pnoise analysis. I set the two inputs to the PFD (reference and feedback) at some phase offset and tried to find the phase noise for the output...
View ArticleClik here to view.
Using noise file to model phase integration in ideal oscillator
Hello,I created an ideal oscillator model using sources from analogLib. I was able to simulated the model for phase noise (jitter mode).The phase-noise plot correctly predicts the the 1/(f^2) region as...
View ArticleClik here to view.
PSS analysis for 0.13um CMOS LNA design suddenly stop at 10 percent
Hye, i am currently working on a design of LNA in 0.13um CMOS. Im done with s parameter and NF part and now Im trying to obtain a result from pss analysis for 1db compression Point and and IIP3. The...
View ArticleClik here to view.
class A power amplifier desing
hii want to design Class A power Amplifier for 30 GHz Frequency. Kindly share any material related to design procedure. i have lot of data regarding general discussion but want specific design related...
View Article