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Different result between sp & hpsp frequency response
Hi everybody, I have the follwing circuit to check its magnitude/phase frequency response (this circuit is non-linear and also generate other harmonics rather than fundamental one) when i simulated...
View ArticleHow to plot Noise Modulating Function for VCOs in Cadence Virtuoso?
Hello,I would like to plot the the Noise Modulating Function (NMF) for the oscillating nodes in any VCO. What are the steps for the same?Regards,Srayan Sankar Chatterjee
View ArticleBest Setup for Detector Circuit
Hello,I've been having trouble figuring out the best way to set up a simulation for a detector circuit, which tool to use (e.g., VSS vs AWR) and which measurement to use. The source impedance is 50...
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How to match the input impedance of a simple RF NMOS?
I am trying to match the impedance of the transistor with the 50-ohm impedance of the source. I am using sp parametric Analysis and then plotting the s-parameters.
View ArticleSimulating Kinetic Inductance in Microwave Office
Hello all,I am working on a project which requires me to simulate superconducting nanowires, whose reactance is dominated by kinetic inductance, in AWR Microwave Office. In order to model this, I would...
View ArticleRF Detector
I was just wondering if there is an easy way to simulate a Rf detect IC, more specifically an ADL5902, in AWR, as i want to look at its use in an AGC system.Simon
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IIP3 Calculation of N-path (N=4) Mixer
Hi,I'm trying to calculate IIP3 value of an 4-path Passive Mixer (circuit given in the figure below) I've few queries:1). Which simulation is best for this purpose? (according to online tutorials,...
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4-Path Mixer IIP3 calculations
Hi,I'm trying to calculate IIP3 of a 4-path mixer. I've 6 PORTS in my circuit: 1 for RF, 1 for LO (I created quadrature signals using delay block of analoglib) and 4 PORTS on the output.When I tried to...
View ArticleRegarding User Guide
Hi,I wanted to get "Virtuoso® Spectre® Circuit Simulator and Accelerated Parallel Simulator RF Analysis User Guide".Where I can find this guide in my installation directory?RegardsArpit
View ArticleLoad based and frame based equipment
Hi all, I just started working in lab that offers testing and certification services. Part of my job is to know the regulations. However, I am new to this field and recently started studying Etsi EN...
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Jee Measurement
i want to better understand how the jee parameter is obtained.I send a 50Mhz clock through a buffer, I set a pss simulation with a beat frequency of 50Mhz and a pnoise from 10kHz to 25Mhz with sampled...
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Using Ideal Frequency Divider Block in Cadence
I am using the ideal freq divider block from the rflib to troubleshoot my 100GHz PLL. I need to assign the parameters in the freq div block. My input frequency (coming from the VCO) is around 100GHz,...
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RMS Phase Error Calculation of a phase shifter
Hi, I have designed a phase shifter (ex: phase shift range 360 degrees, step 2.8125 degrees), with the reference state of S21 and the phase shift state of S43. Then I have a "phase shift =...
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PPV Plot for flat squarish waveform
Hello,I am trying to plot the ISF for a squarish waveform generated by an oscillator. I am aware that the simulator plots PPV not ISF. However, the shape of PPV and ISF will be more or less the same...
View ArticleHow to substract bussed analog signals ?
Hi,I am facing the following issue with Maestro Assembler / Explorer.- Output # 1 is [ Test_1 = vtime('tran "/RFFE/HPPA/CORE/CHANNEL<3>/lo_pmos_msb<30:0>") ]. This is actually a bus of 31...
View ArticleN-Path Filter IIP3
Hi everyone,I am trying to design an N-Path Filter with fLO=1GHzBut i dont know how to simulate the IIP3 of N-Path Filter on cadence spectre.Can you give me some guide.Thank you
View ArticleQPSS simulation
Hi everyone,I am trying to use QPSS to simulate IIP3 of a mixer. It is ok when all source in my circuit are sin wave sources. But when i use a pulse source, the log file show that QPSS did not...
View ArticleRE : calculating the output power of a Quartz oscillator
Help !I am designing a Crystal Oscillator ( which is a complex load) and trying to calculate Output power (to avoid over loading the crystal). I am using pss to simulate it and I get a tran...
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Need help designing an aperturecoupling
Hello, i have done some studies about aperture coupling and for a project i have to simulate a coupling method from 1-2GHz with good S11 and S12. I have done small analysis to microstriplines and their...
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