Two Port Networks

A pair of terminals through which a current may enter or leave a network is known as a port. Two-terminal devices or elements (such as resistors, capacitors, and inductors) result in one-port networks. Most of the circuits we have dealt with so far are two-terminal or one-port circuits. We have considered the voltage across or current through a single pair of terminals—such as the two terminals of a resistor, a capacitor, or an inductor. We have also studied four-terminal or two-port circuits involving op amps, transistors and transformers. In general, a network may have n ports. A port is an access to the network and consists of a pair of terminals; the current entering one terminal leaves through the other terminal so that the net current entering the port equals zero. In this chapter, we are mainly concerned with two-port networks (or, simply, two-ports).

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Two Port Networks for GATE/ESE/PSU (EE, EC, IN)

Network Theory

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GATE, ESE and IIT-JAM

Admittance or Y - Parameters

Impedance or Z - Parameters

Transmission or ABCD Parameters

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Admittance or Y - Parameters

Nikhil Nakka

Two Port Networks for GATE/ESE/PSU (EE, EC, IN)

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