本文的工作包括小型化寬帶天線和射頻-直流(RF-DC)轉(zhuǎn)換電路的設(shè)計和制造,主要用于低功率能量領(lǐng)域。本文所實現(xiàn)的新穎設(shè)計有助于減小器件尺寸,并且能以多種模式靈活兼容無線局域網(wǎng)(WLAN)。本文可分為三個部分。隨著無線系統(tǒng)的出現(xiàn),寬帶整流天線系統(tǒng)越來越需要無線能量采集。本文第一部分介紹共面波導(dǎo)(CPW)寬帶天線,該天線具有高增益和雙向輻射模式的特點,適用于射頻能量采集。通過改變天線形狀、饋電間隙、內(nèi)嵌狹縫、缺陷接地結(jié)構(gòu)(DGS),以及調(diào)整輻射器與地之間的間距,對所提出的設(shè)計方案進行了優(yōu)化。本文設(shè)計了雙頻帶天線和寬帶天線共兩種天線,雙頻帶天線工作頻帶為1.2².8 GHz和3.1-3.7 GHz;寬帶天線工作頻帶為1.8GHz⁵.1GHz。雙頻帶天線增益高達8.9d B,新型寬帶天線在近乎全向輻射模式下的增益為5.6 d B。雙頻段天線大小僅為1.5cmx 3.5cm,而寬帶天線大小也只有1.8cmx3cm。本文詳細(xì)分析了新型蝴蝶結(jié)形狹縫天線、自然啟發(fā)的三角形裂環(huán)諧振器(TSSR)、半圓形地天線和多層天線的天線參數(shù)。本論文所設(shè)計的所有仿真和測量方...

【文章頁數(shù)】：129 頁

【學(xué)位級別】：博士

【文章目錄】：
中文摘要
ABSTRACT
LIST OF ABBREVIATIONS
CHAPTER 1
    1.1 INTRODUCTION
    1.2 MOTIVATION OF THIS WORK
    1.3 AIMS AND OBJECTIVES
    1.4 CONTRIBUTIONS OF THIS RESEARCH
    1.5 ORGANIZATION OF THESIS
CHAPTER 2 BACKGROUND STUDY AND LITERATURE REVIEW
    2.1 WIRELESS POWER TRANSMISSION
    2.2 RF-DC CONVERSION EFFICIENCY
    2.3 OVERVIEW OF PROMINENT WIDE BAND RECTENNAS
    2.4 ANALYSIS OF ANTENNA DESIGN FOR ENERGY HARVESTING
        2.4.1 DIPOLE ANTENNAS
        2.4.2 MONOPOLE ANTENNAS
        2.4.3 CO PLANNER WAVEGUIDE (CPW) ANTENNAS
    2.5 IMPEDANCE MATCHING NETWORK DESIGN
        2.5.1 L-SHAPED MATCHING NETWORK
        2.5.2 PI-SHAPE MATCHING NETWORK
    2.6 SUMMARY
CHAPTER 3 PLANAR RECTENNA DESIGN AND ANALYSIS
    3.1 INTRODUCTION
    3.2 PLANAR ANTENNAS
    3.3 ANALYSIS OF CPW RECTANGULAR ANTENNA WITH SLOTS
        3.3.1 EFFECT OF FEED WIDTH VARIATION
        3.3.2 Measured Results
    3.4 SEMI-CIRCLE GROUND ANTENNA DESIGN ANALYSIS
    3.5 DESIGN ANALYSIS OF TRIANGULAR SPLIT RING ANTENNA
    3.6 ANALYSIS OF RECTANGULAR PATCH WITH SLOTS IMPLEMENTED ON CONTINUOUS GROUND
    3.7 ANALYSIS OF BOW-TIE ANTENNA DESIGN WITH GROUND SLOTS
        3.7.1 REFLECTION COEFFICIENT
        3.7.2 VOLTAGE STANDING WAVE RATIO (VSWR)
        3.7.3 INPUT IMPEDANCE
        3.7.4 CURRENT DISTRIBUTIONS
        3.7.5 RADIATION PATTERN
        3.7.6 ANTENNAS GAIN
    3.8 SUMMARY
CHAPTER 4 RECTIFYING CIRCUITRY FOR WIRELESS ENERGY HARVESTING
    4.1 INTRODUCTION
    4.2 MULTIPLIER DESIGN
    4.3 MEASURED RESULTS
    4.4 SUMMARY
CHAPTER 5 WIDEBAND RECTENNA FOR LOW POWER WIRELESS ENERGY HARVESTING
    5.1 INTRODUCTION
        5.1.1 DESIGN SPECIFICATIONS
        5.1.2 ANTENNA PERFORMANCE
        5.1.3 Antenna Evolution
        5.1.4 Current Distribution and Impedance Matching Analysis
        5.1.5 Results and Parametric Study
    5.2 INTRODUCTION
        5.2.1 ANTENNA DESIGN
        5.2.2 CURRENT DISTRIBUTION AND IMPEDANCE MATCHING
        5.2.3 RESULTS AND PARAMETRIC STUDY
    5.3 RECTENNA DESIGN AND MEASUREMENTS
        5.3.1 RESULTS AND DISCUSSION
    5.4 SUMMARY
CHAPTER 6 CONCLUSION AND FUTURE WORK
    6.1 SUMMARY
    6.2 FUTURE WORK
ACKNOWLEDGEMENTS
REFERENCES



本文編號：3951326