AOC Two Port Network Lab Report (Ho Tian Siang TP050121).docx

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ASIA PACIFIC UNIVERSITY TECHNOLOGY & INNOVATION EE001-3-1 ANALYSIS OF CIRCUITS LABORATORY REPORT TITLE TWO PORT NETWORK ANALYSIS NAME & STUDENT ID HO TIAN SIANG (TP050121) INTAKE UC1F1802ME LECTURER IR. JACQUELINE LUKOSE DATE 12 th JUNE 2018
TABLE OF CONTENTS LIST OF FIGURES ....................................................................................................................... 3 LIST OF TABLES ......................................................................................................................... 3 INTRODUCTION ......................................................................................................................... 4 EQUIPMENT LIST ....................................................................................................................... 5 PROCEDURE ................................................................................................................................ 5 T-Network Verification (z-parameter) ..................................................................................... 5 - Network Verification (y-parameter) .................................................................................. 6 RESULT .......................................................................................................................................... 7 DISCUSSION ................................................................................................................................. 9 CONCLUSION ............................................................................................................................ 10 REFERENCES ............................................................................................................................ 10 APPENDIX ……………………………………………………………………………………..11 2
LIST OF FIGURES Figure 1: Two-port network ………………………………………………………………………4 Figure 2a: T-equivalent circuit for z-parameters ………………………………………………….4 Figure 2b: T-equivalent circuit for y-parameters …………………………………………………4 Figure 3: T-Network Verification (z-parameter) Circuit 1 ............................................................... 5 Figure 4: T-Network Verification (z-parameter) Circuit 2 ............................................................... 6 Figure 5: π-Network Verification (y-parameter) Circuit 1 ............................................................... 6 Figure 6: π-Network Verification (y-parameter) Circuit 2 ............................................................... 7 LIST OF TABLES Table 1: T-Network Verification Result ........................................................................................... 7 Table 2: π-Network Verification Result ........................................................................................... 7 Table 3: Parameters Calculation ...................................................................................................... 8 Table 4: Theoretical results of parameters calculated with the resistance values in circuits……….9 Table 5: Error between the experimental results and theoretical results………………………..… 9 3
INTRODUCTION According to Christopher K. Alexander (2016), a two-port network is an electrical network with two separate ports of input and output, and by knowing the parameters of two-port network, it enables us to simplify our calculation without knowing the details of the internal network when dealing with large and complicate circuit. Thus, such networks are useful in control system and power systems due to its ability to simplify the circuit. To characterize a two-port network, the terminal voltages and currents are expressed in terms of V 1 , V 2 , I 1 and I 2 which shown in Figure 1, and these voltages and currents are related with various terms called parameters, for example impedance (z) parameters and admittance (y) parameters. The formulas for the calculation of z- parameters and y-parameters are expressed in form of [ Z xy = Vx Iy ] and [ Y xy = Ix Vy ] , which the details of the formula will be shown in appendix. The two-port network is said to be symmetrical when Z 11 =Z 22 , which mean the network has mirrorlike symmetry about a centre line.

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