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+//Caption:Calculate (i)-equivalent noise resistance, (ii)-gain, (iii)-noise figure, (iv)-bandwidth
+//Exa:9.13
+clc;
+clear;
+close;
+f_s=2*10^9;//in Hz
+f_p=12*10^9;//in Hz
+f_i=10*10^9;//in Hz
+f_d=5*10^9;//in Hz
+R_i=1*10^3;//in ohm
+R_g=1*10^3;//in ohm
+R_T_s=1*10^3;//in ohm
+R_T_i=1*10^3;//in ohm
+T_d=300;//in Kelvin
+T_o=300;//in Kelvin
+w_s=2*%pi*f_s;
+w_i=2*%pi*f_i;
+r=0.35;
+r_Q=10;
+r_d=300;//in ohm
+C=0.01*10^-12;//in Farad
+R=r^2/(w_s*w_i*C^2*R_T_i);
+a=R/R_T_s;
+g=((4*f_i*R_g*R_i*a)/(f_s*R_T_s*R_T_i*(1-a)^2));//gain
+Gain=[10*log(g)]/log(10);//gain in dB
+f={1+((2*T_d)/T_o)*[(1/r_Q)+(1/r_Q^2)]};//noise figure
+F=[10*log(f)]/log(10);//noise figure in dB
+B_W=(r/2)*sqrt(f_d/(f_s*Gain));//bandwidth
+disp(a,'Equivalent noise resistance (in ohm) =');
+disp(Gain,'Gain (in dB) =');
+disp(F,'Noise figure (in dB) =');
+disp(B_W,'Bandwidth =');
+\ No newline at end of file