INTRODUCTION LITERATURE REVIEW METHODOLOGY RESULT AND DISCUSSION

TABLE OF CONTENT PAGE ABSTRACT i ABSTRAK ii ACKNOWLEDGEMENT iii LIST OF TABLES iv LIST OF FIGURES v LIST OF SYMBOLS x LIST OF PUBLICATIONS xii

Chapter 1 INTRODUCTION

1.1 Project overview 1.2 Problem statements

1.3 Objectives

1.4 Scopes of project 1.5 Contribution of Project 1.6 Thesis structure 1.7 Summary 1 4 5 5 5 5 6

Chapter 2 LITERATURE REVIEW

2.1 Introduction 2.2 Enhanced Qu Passive Notch Filters 2.3 Perfectly-matched concept lossy allpass network 2.4 Selectivity 2.5 Dual mode resonator bandstop filter 7 9 10 13 13 xii 2.5.1 Dual mode ring resonator bandstop filter 2.6 Review of Switchable Filter 2.7 PIN diode 2.7.1 Fundamental 2.7.2 PIN Diode Application 2.8 Summary 13 15 17 17 18 19

Chapter 3 METHODOLOGY

3.1 Introduction 3.2 Flowchart 3.2.1 Literature review 3.2.2 Design and simulation of matched bandstop filter 3.2.3 Optimization and fabrication 3.2.4 Measurement and analysis 3.3 The design of resonator 3.4 Matched bandstop filter design 3.4.1 Perfect notch concept 3.4.2 Design specification 3.5 Simulation 3.6 Hardware design 3.6.1 Generate mask on transparency 3.6.2 Photo exposure process 3.6.3 Etching in developer solution 3.6.4 Etching in ferric chloride 3.6.5 Measurement 20 21 22 22 22 23 23 22 24 25 25 26 26 27 27 27 28 xiii 3.7 Filter design 3.8 Design of matched bandstop filter 3.9 Switchable matched bandstop filter 3.9.1 Switchable filter using biasing line 3.9.2 Switchable filter using RF chokeinductor 3.10 Design of dual mode ring resonator matched bandstop filter 3.10.1 Switchable Dual Mode Ring Resonator Matched Bandstop Filter using Biasing Line 3.10.2 Switchable Dual Mode Ring Resonator Matched Bandstop Filter using an RF choke inductor 3.11 Analysis of filter circuits simulation using PIN diode 3.12 Summary 28 29 29 30 31 32 33 34 35 38

Chapter 4 RESULT AND DISCUSSION

4.1 Design specification 4.2 Simulation result 4.2.1 Design of matched bandstop filter 4.2.2 Switchable matched bandstop filter 4.2.2.1 Switchable using biasing line 4.2.2.2 Switchable using RF chokeinductor 4.2.3 Design of dual mode ring resonator matched bandstop filter 4.2.3.1 Switchable using biasing line 4.2.3.2 Switchable using RF chokeinductor 4.3 Fabrication result 4.3.1 Switchable matched bandstop filter biasing line 39 39 39 41 41 42 42 43 44 45 45 xiv 4.3.2 Switchable matched bandstop filter RF chokeinductor 4.3.3 Comparison of Switchable matched bandstop filter using biasing line and RF chokeinductor 4.3.4 Switchable dual mode ring resonator matched bandstop filter using biasing line 4.3.5 Switchable dual mode ring resonator matched bandstop filter using RF chokeinductor 4.3.6 Comparison of simulation and fabrication for reconfigurable dual mode ring resonator matched bandstop filter 4.4 Summary 46 48 50 51 54 55

Chapter 5 CONCLUSION AND RECOMMENDATIONS FOR FUTURE