Magnitude of transfer function shows how the amplitude of
each frequency component is affected by the network.
Phase of transfer function shows how the phase of each
frequency component is affected by the network.
in
out
V
V
s
H
)
(

Example 1
6
Find the transfer function of the network below given as
.
1
2
)
(
V
V
s
H

Example 1: Solution
7
The transfer function is found by voltage division
where
. At steady state
,
,
therefore
the magnitude and angle of
H
(
s
)
are
1
1
1
1
)
(
sRC
sC
R
sC
s
H
j
s
0
j
s
2
)
(
1
1
)
(
wRC
jw
H
)
(
tan
)
(
1
wRC
w