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Port Noise Error?
Hey all,I am using version IC6.18-64b.500.12 with the Spectre version Version 19.1.0.428.isr9 64bit. This is an ADE L simulation.I am trying the noise figure of a mixer using pnoise. My LO frequency is...
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Simulating the LC tank to determine the oscillation frequency
Hello,I am trying to determine the center frequency of an LC tank for an NMOS LC VCO. I followed this note from a previous question....
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Plotting Output Capacitor of the MOSFET
Hi All,I am trying to plot the variation of the equivalent output capacitance of a FET when the input DC gate voltage is swept from 0 to 2V. First, I connected a DC voltage source with a parametric...
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Determining the frequency of oscillation using the calculator function
Hello,There are a number of ways to determine the frequency of oscillation for an Oscillator. 1) Using the linear stability analysis, 2) using periodic stability analysis. In these two cases, a...
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How accurate is the s-parameter measurement for extraction
Hello,How accurate is the s-parameter measurement for extracting conductances (g), of an inductor and varactor compared to EM solver tools? My cadence virtuoso version is :Version...
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Warnings from spectre PSS analysis
While running a harmonic balance analysis on my rectifier, I receive warnings such as 'CMI-2426: M3: Cdscd = -28 is negative.CMI-2426: M1: Pdiblc2 = -31 is negative.I understand that these are...
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How do I EM-Extract a subcircuit and define a different em/drawing-layer than...
Hello all,I have a 4-layer project in AWR/MWOffice and have built a parameterized microstrip inductor schematic (named "spiral") with a "Line Type" of layer1 that I wish to reuse on another schematic...
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How do I subtract metal around a via passing through a ground-flood for EM...
Hello all,If I send a VIA element through a large MLIN, how can I prevent the VIA from contacting the MLIN? I read about negative layers, but couldn't find anything about +/- layers with EM extraction:...
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[AWR Microwave Office] PAE vs Back-off graph
Hello everyone, I've some question related to the AWR Microwave Office. I want to calculate relation between PAE and Back-off of a Doherty amplifier. I saw on the internet some graphs on which such...
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Eye Aperture isn't taking place at values of my interest
Hi , In the image attached, its a combination of 8 eye diagrams. I am using eye aperture calc function for automatic generation of the mask. My desired vref is 660mv, VHiDC = 785mv (verf+125mv) &...
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[AWR Microwave Office] Harmonic Balance in Load-Pull analysis
Hello everyone,I've short question related to AWR Microwave Office. I need to turn on Harmonic Balance in Load-Pull analysis. I've library with elements which can be calculated only in HB, so when I...
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PAC and PXF simulation Result inconsistence in terms of IRR
Good day,I'm using virtuoso 6.1.6 and I'm trying to simulate IRR of a receiver front-end. The IQ separation is generated by a RF hybrid coupler(transmission-line based, using mtline component in...
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How can I make AXIEM use more than 8 CPU cores?
Hello all,When I set the job threads to 32 to use all of my CPU cores in AXIEM, it still only uses 8 of the CPUs.How can we use all of our cores in AXIEM?Is this limited by licensing?-Eric
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Strange phase-noise plot in PSS
Hi,I am simulating a crystal oscillator (Pierce-Oscillator with Inverter), very similar to Tawnas example...
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[AWR Microwave Office] Load-Pull Analysis - Load and Source contours
Hello everyone,I've short question related to contours in AWR Microwave Office. I want to plot two contours: Load and Source one. I found video on YT, where such thing has been done, however I don't...
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how to plot noise circle in hb+hbnoise simulation?
Hi folks, I want to plot noise circle with hb + hbnoise simulation, but struggling to set-up the simulation bench. my test bench is RF receiver including de-modulation with fRF /fLO / fIF.1) A...
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Ocean scripting: design parameters as output for parametric analysis of phase...
Hi,I am not able to find a solution to get the outputs for phase noise in an oscillator at different frequencies along with the input parameters. I am varying 7 parameters with specific values in each...
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(Multi-modulus) divider phase noise simulation
Hello everyone, Sorry if I missed the topic and the question is already answered. I want to simulate the phase noise contribution of an MMD used in a frequency synthesizer. For the purpose of...
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180-degree phase shifter shows -90 degree in the graph measurement
Hello,I am testing a simple high-pass/low-pass phase shifter using lumped elements in AWRDE/Microwave Office. The 90-degree shifter looks about right, but the 180-degree shifter shows -90 degrees...
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Calculations with signal bus outputs in Cadence calculator
Hi,My question is as follows:I run an ac test and save two signal buses in bundle form: /inp<1:32> & /inm<1:32>Then I calculate the ac response of...
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