Use the model named BN1X1 as given below. You may use LTSPICE program for simulations.

Draw the ft vs Ic curve of the npn BJT. What is the value of Ic for the highest ft.

MODEL BN1X1 NPN

+ BF=82 IS=7.943E-17 NF=9.9063E-01 NE=1.3893 VAF=71.4

+ IKF=1.025E-02 ISE=8.268E-17 RE=17.4 RC=752.42 RB=1.213E+03

+ RBM=13.08 ISC=1.643E-15 NC=1.0266

+ CJE=0.0976E-12 MJE=0.5050 VJE=0.85 CJC=0.0981E-12 MJC=0.4990 VJC=0.80

+ CJS=0.1800E-12 MJS=0.2033 VJS=0.70

* AREA OF TRANSISTOR

* AE=64 um^2 PE=32 um AB=336 um^2 PB=80 um AC=1536 um^2 PC=160 u