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Recent content by JoJo

  1. J

    VSWR_in and VSWR_out for 3-stage LNA

    Is my logic for Gamma_a and b also correct? Gamma_a3 for 3rd stage = 0 because Za = Z0 = 50. Then Za for Gamma_a2 = Gamma_IN (of 3rd stage). Basically, my Matlab code looks like this: GammaIN3 = S11 + ((S12*S21*0)/(1 - (S22*0))); GammaIN2 = S11 + ((S12*S21*GammaIN3)/(1 - (S22*GammaIN3)))...
  2. J

    VSWR_in and VSWR_out for 3-stage LNA

    Cool, I got that part. But when I solve Gamma_IN, does that become the load for stage 2 and so on?
  3. J

    VSWR_in and VSWR_out for 3-stage LNA

    I would like to know how to calculate this manually for the entire 3 stages without ADS simulation. I have the equations from Gonzalez p. 194-196: Gamma_IN = S11 + ((S12*S21*Gamma_L)/(1 - (S22*Gamma_L))); Gamma_OUT = S22 + ((S12*S21*Gamma_S)/(1 - (S11*Gamma_S))); Gamma_a = (Za - Z0) / (Za +...

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