Y- Parameters Explained | Condition of Reciprocity and Symmetry for Y- parameters

In this video, the Y- Parameters of the two-port network are explained and the condition of Reciprocity and Symmetry for Y parameters are derived.

By watching this video, you will learn the following topics:

0:00 Introduction

0:22 Y- Parameters of the Two-Port Network

5:26 The equivalent circuit of the two-port network in terms of the Y-parameters

6:54 Condition for Reciprocity for Y- Parameters

9:41 Condition for Symmetry for Y- Parameters

Y- Parameters (Admittance Parameters) :

In the two-port network, there are four variables. (V1, I1, V2, and I2)
Out of the four variables, the two variables are independent variables while the two variables are dependent variables.
For Y- parameters, I1 and I2 are dependent variables, while V1 and V2 are independent variables.

And I1 and I2 can be expressed as
I1 = Y11*V1 + Y12*V2
I2 = Y21*V1 + Y22*V2

The Y- parameters are also known as the admittance parameters because each parameter has the unit of admittance.

In the video, after the discussion of Y- parameters, the two-port network is represented by the equivalent circuit in terms of the Y-parameters.

What is the Reciprocal Network? Condition for Reciprocity

A Two-Port network is said to be a Reciprocal network if the ratio of excitation at one port to the response at other port is the same if the excitation and the response are interchanged.

Condition for Reciprocity: Y12 = Y21

What is the Symmetrical Network? Condition for Symmetry
A Two-Port network is said to be a Symmetrical network, if the ratio of Voltage to the current at one port is same as the ratio of the voltage to the current at the other port, with one of the port open-circuited.

Condition for Symmetry: Y11 = Y22

#TwoPortNetwork
#Yparameters

This video will be helpful to everyone in understanding the Y- parameters of the Two-port Network.

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