L1=0.159;
L2=0.053;
C=60e-9;
R=1000;

hold off

subplot(1,2,1)

H=tf([1 0 0 0],[1 ((R/L1 + R/L2)) (1/(L2*C)) (R/(L1*L2*C))])
%sigma= tf([1],[1 0])
%stegsvar=H*sigma


%bode(H)
grid on

hold on

step(H)