How can I plot the frequency response of the equation below using MATLAB?

$$\boxed{\dfrac{V_{out}(j\omega)}{V_{in}(j\omega)}=\dfrac{2\times10^9}{(1+10j\omega)(100\times10^3j\omega+20\times10^3j\omega+2\times10^9-20\times10^3j\omega}}$$

and

$$\dfrac{V_{out}(j\omega)}{V_{in}(j\omega)}=\dfrac{j\omega LR_1R_2}{(j\omega L)((1+j\omega C R_2)(j\omega LR_2+j\omega LR_1+R_1R_2)-j\omega LR_1)}$$

I am having a hard time figuring out how can I translate them into symbolic math or what I will do to them to get their frequency response plots.

Answer 1

[Jesús Zambrano]

Hi Victor,

Please try:

tf1 = tf([2e9],[10 1]);
tf2 = tf(1, [100e3 2e9]);
mytf = tf1*tf2;

bode(mytf)

where each vector in the transfer functions should be nonempty and containing numeric data.

Hope it helps!