臺灣博碩士論文加值系統

摘要 i
Abstract iii
誌 謝 v
Content vi
List of Figures ix
List of Tables xiii
Chapter 1 Introduction 1
1.1 Application and Development of Wireless Sensor Networks 1
1.2 The Challenges of Wireless Sensor Networks 2
1.3 Duty-cycled Rendezvous Schemes of Wireless Sensor Networks 5
1.4 Considerations of the Low-power Wireless Systems 7
1.5 Thesis Organization 10
Chapter 2 Receiver Design Consideration 11
2.1 Design Considerations of Low Power Receivers 11
2.1.1 Power Consumption 12
2.1.1.1 Reduction of Voltage Supply 12
2.1.1.2 Architecture Design of a Receiver 15
2.1.1.3 System Modulation and Startup Mechanism 17
2.1.2 Sensitivity 18
2.1.3 Interference Immunity 19
2.2 State-of-the-Art in Wake-Up Receivers 21
2.2.1 Direct Envelop Detection Receiver 21
2.2.2 Super-Regenerative Receiver 22
2.2.3 Low IF Receiver 23
2.2.4 Injection Locked Receiver 25
2.2.5 Subsampling Receiver 25
2.2.6 Uncertain IF Receiver 28
2.2.7 Mixer-first Receiver 29
2.3 Chapter Conclusion 30
Chapter 3 Mixer-first Receiver with N-path Passive Methodology 32
3.1 Path number selection of N-Path Passive Mixers 33
3.2 Single-to-Differential Passive Mixer 35
3.2.1 The Input Impedance of the Two-path Passive Mixer 35
3.2.1.1 Input impedance of Zero-IF SDPM 37
3.2.1.2 Input Impedance of Heterodyne SDPM 42
3.2.1.3 Input Impedance with LO Harmonics Influence 46
3.2.2 Frequency Response of Single-to-Differential Passive Mixer 49
3.2.2.1 Input Frequency Response of SDPM 49
3.2.2.2 Zero-IF Output Frequency Response of SDPM 51
3.2.2.3 Heterodyne Output Frequency Response of SDPM 52
3.2.3 Noise Analysis of Single-to-Differential Passive Mixer 54
3.3 Frequency Tracking Mechanism 57
3.4 Chapter Conclusion 62
Chapter 4 433 MHz Mixer-First Receiver with a Self-Frequency Tracking Loop 63
4.1 OOK Receiver 63
4.1.1 RF Front-End Matching Network 64
4.1.2 Self-Adjusted Frequency Tracking Circuit 67
4.1.2.1 Phase Frequency Detector and Charge Pump 71
4.1.2.2 4-bit DAC 72
4.1.3 IF Band Gain and Demodulation Path 72
4.1.4 Data Acquisition Path with Envelop Detector and Comparator 74
4.1.5 Digital Control LC Oscillator 75
4.2 OOK/BFSK Receiver 77
4.2.1 Calibration/ Demodulation Selector 78
4.2.2 BFSK Demodulation Path 79
4.2.3 Digital Comparator 81
4.2.4 Data Correlator 82
4.3 Measurement and Discussion 85
4.3.1 Measurement Setup 85
4.3.2 Measurement Results 86
4.4 Chapter Conclusion 102
Chapter 5 Self-powering Wireless Soil-pH and Electrical Conductance Monitoring IC with Hybrid Microbial Electrochemical and Photovoltaic Energy Harvesting 103
5.1 Motivation 103
5.2 Self-powering Wireless Soil-pH and Electrical Conductance Monitoring IC with Hybrid Microbial Electrochemical and Photovoltaic Energy Harvesting 106
5.2.1 Dual-Input Dual-Output Power Management Unit 107
5.2.2 Sensor Readout Circuitry 108
5.2.3 Self-Frequency Tracking Receiver 111
5.2.4 Chirp-Modulation Transmitter 115
5.3 Measurement setup and results 118
5.3.1 DIDO PMU Measurement Results 118
5.3.2 SRC Measurement Results 120
5.3.3 SFT-RX Measurement Results 122
5.3.4 CMTX Measurement Results 125
5.4 Summary 127
Chapter 6 Conclusion and Future Work 128
Reference 129
Publication List 136

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