Network Analysis and Synthesis, 1st Edition by Pearson

Two-port Network Parameters 461

Figure 11.1 Block Diagram

Representation of

a Two-port Network

Two-port

network

I

1

I

2

V

1

V

2

1

1

′

2

2

′

Figure 11.1 shows a two-port network having two

ports, namely 1−1′ and 2−2′. The block may repre-

sent a communication system, an electronic system,

an electrical transmission or distribution system, etc.

Terminals 1−1′ is a pair that constitutes a port.

Similarly, the pair of terminals 2−2′ constitutes

another port. The voltage and current at the input ter-

minals are V

1

and I

1

and at the output port are V

2

and

I

2

, respectively. It has been assumed that both I

1

and I

2

are entering the network through terminals

1 and 2, ...