BigBoss
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3rd April 2020, 19:29BigBoss replied to a thread Solving issues in my PCB grounding in Professional Hardware and Electronics DesignTDL Lambda has very good reputation and I believe it has been tested very well before supplied. But every system may have a fault so if the voltage...6 replies | 312 view(s)
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1st April 2020, 18:54BigBoss replied to a thread Solving issues in my PCB grounding in Professional Hardware and Electronics DesignThis is likely SMPS problem.It's not dangerous much but should be carefully examined. My TV receiver is SONY and when I check the voltage on his...6 replies | 312 view(s)
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29th March 2020, 01:40BigBoss replied to a thread bipolar active linear region in Analog Integrated Circuit (IC) Design, Layout and FabricationYour definition Vbc<0 is not correct. Exact statement should be B-C junction is reverse biased for Linear region,Forward biased for Saturation...2 replies | 235 view(s)
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28th March 2020, 01:24BigBoss replied to a thread Interpreting NF Circle ang Gain circle for matching network in Analog Integrated Circuit (IC) Design, Layout and FabricationIs it a joke ?? Everything is short circuited.. Read on simulation techniques much.There are millions app notes and papers about it.7 replies | 539 view(s)
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27th March 2020, 01:26BigBoss replied to a thread Interpreting NF Circle ang Gain circle for matching network in Analog Integrated Circuit (IC) Design, Layout and FabricationGamma_L is used for Power Gain ..7 replies | 539 view(s)
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26th March 2020, 19:23BigBoss replied to a thread Interpreting NF Circle ang Gain circle for matching network in Analog Integrated Circuit (IC) Design, Layout and FabricationNFmin is a single point and NF Circles are rounding this point by sacrificing NF value.So the best NF can be obtained at that point only, then first...7 replies | 539 view(s)
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26th March 2020, 13:25BigBoss replied to a thread Getting nonlinear model for JFET and GaAsHEMT transistor in RF, Microwave, Antennas and Optics-You will design a simple LNA so you don't have to simulate this simple circuit.All you need a simple Vgs Voltage generator trough a Bias Stub ( or...9 replies | 951 view(s)
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25th March 2020, 23:12BigBoss replied to a thread Getting nonlinear model for JFET and GaAsHEMT transistor in RF, Microwave, Antennas and OpticsNonlinear Models are not %100 necessary for a good design.All you have to do is to design a matching circuit for Lowest Noise with a appropriate...9 replies | 951 view(s)
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25th March 2020, 00:02What type of Mixer you would to design ?? -Integrated or Discrete ? -Active or Passive ? -Diode or Transistor ? -Single Balanced or Double...3 replies | 454 view(s)
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24th March 2020, 20:18BigBoss replied to a thread SMA-Microstrip transition removal for large-signal measurement of PA in RF, Microwave, Antennas and OpticsNow I have seen the problem..As I said before.. GND connection is too poor.26 replies | 1376 view(s)
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23rd March 2020, 20:18BigBoss replied to a thread SMA-Microstrip transition removal for large-signal measurement of PA in RF, Microwave, Antennas and OpticsYour test board is not so good at all..Ground connections are extremely sensitive at RF frequencies and its' GND connections are very poor. Find a...26 replies | 1376 view(s)
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23rd March 2020, 20:10Ulrich Rohde has an in-depth analytical textbook about oscillators.I recommend it to follow..The Design of Modern Microwave Oscillators for Wireless...6 replies | 638 view(s)
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15th March 2020, 07:04BigBoss replied to a thread Difference between ADS simulation and the experimental measurements in Analog Integrated Circuit (IC) Design, Layout and FabricationPost your layout and schematic here, let's see.3 replies | 342 view(s)
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13th March 2020, 18:28BigBoss replied to a thread can i connect 2 rf amplifiers to get higher amplification? in RF, Microwave, Antennas and OpticsTheoretically yes, practically no..13 replies | 932 view(s)
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12th March 2020, 21:03BigBoss replied to a thread ADS and S11 Equations for L & C in Electromagnetic Design and SimulationPlot "ipart" on a Smith Chart and see how reactive part of the Input Impedance changes.. As seen from S11, Input Impedance has no inductive part.15 replies | 1369 view(s)
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8th March 2020, 16:36BigBoss replied to a thread SMS7630 Series modeling for small signal in ADS in RF, Microwave, Antennas and OpticsThe additional elements in the first picture are not included model because they are just package parasitics.There isn't any small signal model in...3 replies | 368 view(s)
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