Hello , yes i had a little biasing problem where i put Vdc in port 0.8 and for some reason it biased 1.6V on the gate as shown bellow.
i Have succseeded building those circles and i picked a point in between the NF circle an GAIN circle and the GAMMA is GAMMA_S(as you said)
Next i calculate from GAMMA_S yo GAMMA_L extract the impedance using the following matlab code
My question is, what is the best tool you reccomend for building a matching network from 50 to the load impedance and source impedance we calculated?
gamma=0.548*exp(deg2rad(-159.05)*i);
z=gamma2z(gamma,50)/50;
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I have calculated the Zs and ZL as shown bellow so i need to do a matching network from 50 to Zs and ZL to 50 so i will get minimum S11 and minimum S22?
Updated matlab code:
gamma_s=75.8966*exp(deg2rad(280.88)*i);
z_s=gamma2z(gamma_s,50);
s11=0.99875-0.03202*i
s12=721.33*10^(-6)+8.622*10^(-3)*i
s21=-188.37*10^(-3)+30.611*10^(-3)*i
s22=875.51*10^(-3)-100.72*10^(-3)*i
gamma_L=conj((s22+(s12*s21*gamma_s)/(1-s11*gamma_s)))
z_L=gamma2z(gamma_L,50)
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Do i need to build the network to the conjugate value of Zs and ZL
?