Study of intermodulation distortions in microwave action filters.

• Other Authors: Chan, Siu-Chung.
• Format: Others
• Language: English; Chinese
• Published: 1998
• Subjects: Microwave filters > Design and construction; Modulation (Electronics); Volterra equations
• Online Access: http://library.cuhk.edu.hk/record=b5889653; http://repository.lib.cuhk.edu.hk/en/item/cuhk-322204

by Siu-Chung Chan. === Thesis (M.Phil.)--Chinese University of Hong Kong, 1998. === Includes bibliographical references (leaves 98-100). === Abstract also in Chinese. === Chapter CHAPTER 1 --- INTRODUCTION --- p.3 === Chapter CHAPTER 2 --- BACKGROUND THEORY --- p.6 === Chapter 2.1 --- Passive LC Low-pass Filter --- p.6 === Chapter 2.1.1 --- Butterworth Low-pass Filter --- p.6 === Chapter 2.1.2 --- Chebyshev Low-pass Filter --- p.8 === Chapter 2.2 --- Low-pass to Band-pass Transformation --- p.10 === Chapter 2.2.1 --- Impedance Inverter --- p.12 === Chapter 2.2.2 --- Admittance Inverter --- p.14 === Chapter 2.3 --- Coupled Resonator Band-pass Filter --- p.15 === Chapter 2.4 --- Active Filter Techniques --- p.19 === Chapter 2.4.1 --- Actively-coupled Passive Resonators --- p.20 === Chapter 2.4.2 --- Negative Resistance for Q-enhancement --- p.21 === Chapter 2.4.3 --- Transversal & Recursive Filters --- p.22 === Chapter 2.4.4 --- Active Inductors --- p.24 === Chapter 2.5 --- Chapter Summary --- p.27 === Chapter CHAPTER 3 --- NEGATIVE RESISTANCE BASED ACTIVE FILTER --- p.28 === Chapter 3.1 --- Lossy Coupled-Resonator Band-pass Filter --- p.28 === Chapter 3.2 --- Negative Resistance Circuit --- p.32 === Chapter 3.2.1 --- Capacitive Feedback Configuration of CS MESFET --- p.33 === Chapter 3.2.2 --- Active LC-Resonator --- p.35 === Chapter 3.3 --- Design Criteria of Active Filter --- p.39 === Chapter 3.3.1 --- Choices of Feedback Capacitance --- p.40 === Chapter 3.3.2 --- Derivation of Design Requirements --- p.44 === Chapter 3.4 --- Chapter Summary --- p.46 === Chapter CHAPTER 4 --- INTERMODULATION ANALYSIS BY VOLTERRA-SERIES --- p.47 === Chapter 4.1 --- volterra-series analysis --- p.47 === Chapter 4.1.1 --- Nonlinear Transfer Functions --- p.48 === Chapter 4.1.2 --- Harmonic-Input Method --- p.50 === Chapter 4.2 --- Derivation of Intermodulation Products in Active Filter --- p.52 === Chapter 4.2.1 --- Modeling of Nonlinear MESFETs --- p.52 === Chapter 4.2.2 --- First Order Kernel --- p.56 === Chapter 4.2.3 --- Second Order Kernel --- p.58 === Chapter 4.2.4 --- Third Order Kernel --- p.61 === Chapter 4.3 --- Simplified Nonlinear Model of Active Filter --- p.66 === Chapter 4.4 --- Minimization of Intermodulation in Active Filter --- p.67 === Chapter 4.5 --- Chapter Summary --- p.73 === Chapter CHAPTER 5 --- DESIGN OF 900MHZ HYBRID ACTIVE FILTER --- p.74 === Chapter 5.1 --- Material Considerations --- p.74 === Chapter 5.1.1 --- Choice of MESFET --- p.75 === Chapter 5.1.2 --- Choice of Inductors --- p.75 === Chapter 5.1.3 --- Choice of Capacitors --- p.75 === Chapter 5.1.4 --- Choice of PCB Material --- p.76 === Chapter 5.2 --- Design of Hybrid Active Filters --- p.76 === Chapter 5.2.1 --- General Filter Structure --- p.76 === Chapter 5.2.2 --- Gate-Source & Feedback Capacitance Control --- p.78 === Chapter 5.2.3 --- Stability Issues --- p.79 === Chapter 5.2.4 --- PCB Layout --- p.82 === Chapter 5.2.5 --- Design Variants --- p.82 === Chapter 5.3 --- Measurements & Results --- p.84 === Chapter 5.3.1 --- Passive Filter Frequency Response Measurement --- p.85 === Chapter 5.3.2 --- Active Filter Frequency Response Measurement --- p.86 === Chapter 5.3.3 --- Two-Tone Intermodulation Measurement --- p.88 === Chapter 5.3.4 --- Gain-Compression Measurement --- p.92 === Chapter 5.4 --- Chapter Summary --- p.95 === Chapter CHAPTER 6 --- CONCLUSION --- p.96 === Chapter CHAPTER 7 --- FUTURE WORKS --- p.97 === REFERENCE --- p.98 === PUBLICATION LIST --- p.100 === APPENDIX --- p.101