Chapter 13
Two-port networks
In this chapter we shall investigate some ways of
characterizing two-port networks,Before we do this,
we must consider some of the more general details
that apply to all networks which have two port,In
addition,we shall consider interconnection of two-
port and introduce the NIC,（ 负阻抗变换器 ） and
Gyrator ( 回转 器 ).
A pair of terminals at which a signal may enter or
leave a network is called a port.
The four-terminal network
When i1=i1’ and i2=i2’
--a two-port network
The two-port is composed of linear elements,including
dependent sources but not containing any independent
sources.
1i
'i1
2i
'i2
input output
Two-port networks
In this chapter we shall investigate some ways of
characterizing two-port networks,Before we do this,
we must consider some of the more general details
that apply to all networks which have two port,In
addition,we shall consider interconnection of two-
port and introduce the NIC,（ 负阻抗变换器 ） and
Gyrator ( 回转 器 ).
A pair of terminals at which a signal may enter or
leave a network is called a port.
The four-terminal network
When i1=i1’ and i2=i2’
--a two-port network
The two-port is composed of linear elements,including
dependent sources but not containing any independent
sources.
1i
'i1
2i
'i2
input output
