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Recent content by m_soufi

  1. M

    Bias point in Power Amplifier with ADS

    Thanks dear Bigboss I check another transistor with 5 W output power and Vgs is 6 to 20 volt. now I have a question. in class AB pwer amplifier Vgs is less than Vth. and for my transistor Vth min is 1 volt. then how should I bias this transistor according to the given Vgs in datasheet ? thanks...
  2. M

    Bias point in Power Amplifier with ADS

    First of all thanks for your answer. I saw datasheet again. for I-V curve Vgs is 6 to 16 volt and the drain voltage is 12.5 volt. Next I simulate the spice model with Vgs from 6 to 16 and these warnings are detected: Warning detected by hpeesofsim during DC analysis `DC1'. Circuit converged...
  3. M

    Bias point in Power Amplifier with ADS

    Hi I want to design a class AB Power Amplifier and I use spice model of D2201UK transistor (semelab) for simulation in ADS, design guide>Amplifier>DC and Bias point>FET_IV_Gm_PowerCalc. but when I put my spice model instead of the default transistor, it doesn't work good. I am using this...
  4. M

    Calculating input impedance of the resonator for VCO in ADS

    Hi How can I find the input impedance of the resonator (Rs) by simulating in ADS ? I need Rs for calculating the two feedback capacitors of VCO. I am using these tutorial : **broken link removed** and here is my desing : Best Regards.

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