- #1

roam

- 1,271

- 12

## Homework Statement

I'm trying to make a theoretical Bode plot of a High pass filter (made up of a capacitor and a resistor). The transfer function is:

##T=\frac{V_{out}}{V_{in}}= \frac{R}{R+1/(j\omega C)} = \frac{1}{1-j\omega_0 / \omega}##

With a

**corner frequency of 5 kHz**or in radians:

##\omega_0 = \frac{1}{RC} = \frac{1}{(1440.96 \Omega)(22 \ nF)}##

## The Attempt at a Solution

I rewrote the transfer function as:

##\frac{s}{s+\omega_0}## where s=jω

And used the following code:

w=1/(1440.96*(22e-9))

N=[1];

D=[1 w];

sys = rss(5);

h = bodeplot(sys);

setoptions(h,'FreqUnits','Hz','PhaseVisible','off');

h=bode(N,D);

And here is what I got:

Clearly this is wrong, it is not the graph of a high-pass filter. Here is my experimental result (how the curve should look like):

So what is wrong with my code?

Any help is greatly appreciated.