BigBoss
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14th October 2019, 20:13BigBoss replied to a thread average value of as square wave in Analog Integrated Circuit (IC) Design, Layout and FabricationVmean=Vpeak*(thau/Period) thau:duty cycle6 replies | 225 view(s)
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14th October 2019, 17:05BigBoss replied to a thread Plotting of VCO output power vs frequency in cadence spectre in Analog Integrated Circuit (IC) Design, Layout and FabricationSweep Vtune and look at Vout in dBm for first harmonic ( or whatsoever..) ..very simple.3 replies | 188 view(s)
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14th October 2019, 10:46BigBoss replied to a thread Microstrip to layout in ADS for power amplifier design in Analog Circuit DesignI said that use PDK of Cree, not model standalone.. There will be DRC rules,LVS rules,and other stuffs such as VIAs,Transmission...14 replies | 615 view(s)
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14th October 2019, 00:49BigBoss replied to a thread When to connect RF Bypass capacitor, and a Resistor in place of RF choke? in RF, Microwave, Antennas and OpticsDepends on the frequency of operation. Resistors can be used because SRF of the Coils are very close or exceeds it.This is valid for capacitors...1 replies | 171 view(s)
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14th October 2019, 00:44It depends on the nonlinearity of the active device.Increasing bias current or playing with load gives a you a headroom to play in but it's not exact...2 replies | 209 view(s)
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14th October 2019, 00:27BigBoss replied to a thread Microstrip to layout in ADS for power amplifier design in Analog Circuit DesignWill you send your design to Cree to make manufacture ?? If it's so, you have to use PDK of Cree otherwise it doesn't make sense to place a layout...14 replies | 615 view(s)
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12th October 2019, 07:40BigBoss replied to a thread Microstrip to layout in ADS for power amplifier design in Analog Circuit DesignThere is nothing to be explained more... Simply place a PIN in schematic view and move on..You can place you layout element in layout view between...14 replies | 615 view(s)
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12th October 2019, 00:07BigBoss replied to a thread Microstrip to layout in ADS for power amplifier design in Analog Circuit DesignIf I understand you correctly, you would use a component/transistor/other element later on but you want to place its place in schematic now.. right...14 replies | 615 view(s)
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7th October 2019, 09:29RS605M is not an appropriate choice for this kind of application.It's used in HV applications rather than Low Voltage/High Current. 2200uF/per Amper...10 replies | 632 view(s)
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6th October 2019, 16:04BigBoss replied to a thread Need documets related to extraction of Inductance using Cadence Assura in Analog Integrated Circuit (IC) Design, Layout and FabricationInductance extraction of Assura is not so accurate.You'd better use an EM simulator..4 replies | 445 view(s)
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6th October 2019, 11:00BigBoss replied to a thread How the stability analysis in analog and RF design related? in RF, Microwave, Antennas and OpticsNDF ( Normalized Determinant Function ) is a generalized stability measure but it's quite difficult to apply.. However ADS and MWOffice supply NDF...3 replies | 308 view(s)
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3rd October 2019, 21:38I couldn't see your specification but they might be overrated or impossible to realize.. It may also be a bug of ADS.6 replies | 695 view(s)
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3rd October 2019, 20:01BigBoss replied to a thread OrCAD PSpice is this a good deal? in PCB Routing Schematic Layout software and SimulationIt's good deal..You cannot find any pro package less than -1000-1500 $. I own Allegro since 1997 and it's pretty good..1 replies | 280 view(s)
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3rd October 2019, 01:55What is wrong ??6 replies | 695 view(s)
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30th September 2019, 14:39BigBoss replied to a thread Problem during simulation model MRF13750 in ADS in RF, Microwave, Antennas and OpticsDid you install prerequisite RF High Power Model Kit ?4 replies | 261 view(s)
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30th September 2019, 10:26BigBoss replied to a thread Problem during simulation model MRF13750 in ADS in RF, Microwave, Antennas and OpticsDid you put the Model Including Block in your schematic ??4 replies | 261 view(s)
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28th September 2019, 17:19BigBoss replied to a thread differential amplifier design using ngspice in Analog Integrated Circuit (IC) Design, Layout and FabricationMicrocap has recently been made public for everyone so it's free without any restriction.It's been used for serious circuit designs by professional...5 replies | 311 view(s)
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28th September 2019, 15:26BigBoss replied to a thread Error opening earlier saved file in ADS in RF, Microwave, Antennas and OpticsLook at the OS compatibility table and decide your OS is supported by you version of ADS or not.....3 replies | 248 view(s)
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27th September 2019, 11:39BigBoss replied to a thread How to determine tone 1 and tone 2 in ADE IIP3 simulation (hb) for a 60 GHz LNA? in Analog Integrated Circuit (IC) Design, Layout and FabricationIf OIP3 is 38.91dBm, P1dB is not correct or vice versa. 9.6dB difference should theoretically be between them but this difference is huge.. I don't...12 replies | 515 view(s)
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27th September 2019, 06:53BigBoss replied to a thread How to determine tone 1 and tone 2 in ADE IIP3 simulation (hb) for a 60 GHz LNA? in Analog Integrated Circuit (IC) Design, Layout and FabricationNot really.. You can choose same frequency for P1dB too and two plots can be layed down on a same chart..But simulation set-up will be surely...12 replies | 515 view(s)
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27th September 2019, 06:50If you obtained s-parameters, you have to know how to extract Impedance.Since the impedance is known, the capacitance/inductance is also known..4 replies | 471 view(s)
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26th September 2019, 19:33BigBoss replied to a thread How to determine tone 1 and tone 2 in ADE IIP3 simulation (hb) for a 60 GHz LNA? in Analog Integrated Circuit (IC) Design, Layout and Fabrication-There is no such definition "Right IP3".. This specification already varies within Bandwidth in a moderate tolerance..12 replies | 515 view(s)
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26th September 2019, 16:07BigBoss replied to a thread How to determine tone 1 and tone 2 in ADE IIP3 simulation (hb) for a 60 GHz LNA? in Analog Integrated Circuit (IC) Design, Layout and FabricationYes, looks fine..12 replies | 515 view(s)
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26th September 2019, 09:45BigBoss replied to a thread S parameter extraction for MOSFET internal parameters in RF, Microwave, Antennas and OpticsYou do fundamental errors.. -DC OP gives you "static" intrinsic parameters, not dynamic..Briefly it computes intrinsic parameters for given DC OP....10 replies | 619 view(s)
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26th September 2019, 09:36BigBoss replied to a thread How to determine tone 1 and tone 2 in ADE IIP3 simulation (hb) for a 60 GHz LNA? in Analog Integrated Circuit (IC) Design, Layout and FabricationNow you will answer your question by yourself.. How you should choose f1 and f2 so that which combination ( 2*f1-f2 or 2*f2-f1) of 3OIM fall into...12 replies | 515 view(s)
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26th September 2019, 08:17Have you ticked "Save Currents" Option ?? The Message is very clear..6 replies | 411 view(s)
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26th September 2019, 08:16BigBoss replied to a thread How to determine tone 1 and tone 2 in ADE IIP3 simulation (hb) for a 60 GHz LNA? in Analog Integrated Circuit (IC) Design, Layout and Fabrication2*f1-f2 or 2*f2-f1 are Third Order Intermodulation Products and IF these Products fall down into Bandwidth, 3OIP measurement is meaningful. So, here...12 replies | 515 view(s)
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25th September 2019, 20:36-Ideal Balun does not do Impedance Transformation.It acts simply as Diff-to-Single Ended so the Impedances ( Input/Output) are same.. -This...9 replies | 588 view(s)
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23rd September 2019, 20:54Have you ever drawn Load and Source Stability Circles for the bands which are root cause of instability ?? There may be a small portion/extreme...2 replies | 225 view(s)
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21st September 2019, 21:10Does Touchstone s-parameters file include Noise Information ?? ( NFmin,Rn,OptsGamma etc) Have you ticked Noise Simulation box in s-parameter control...1 replies | 213 view(s)
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