矩量法分析开槽激励的介质谐振器天线

摘要

由于介质谐振器具有体积小，成本低及无金属损耗等优点，还广泛应用于微波虑波器和振荡器中，各种形状的介质谐振器也被用作有效的辐射器，即介质谐振天线.介质谐振天线的损耗主要由介质损耗引起的，实际上介质损耗是很小的，这种特性促使定在高频领域中的广泛应用.该论文采用矩量法研究中半球形介质谐振器天线.之所以选择半球形介质谐振器天线是因为可以获得更精确的解答，而及有介质与空气之间的磁表面积聚.

目录

文摘

英文文摘

Chapter1. Introduction

Chapter 2. Hemispherical DRA Excited by the Rectangular Waveguide Slots

2.1 Introduction

2.2DRA Excited by the End wall Slot of the Rectangular Waveguide

2.2.1 Problem Formulation

2.2.2 Numerical Results and Discussion

2.3 DRA Excited by the Longitudinal Slot of the Rectangular Waveguide

2.3.1 Problem Formulation

2.3.2 Numerical Results and Discussion

2.4 Derivation of the Rectangular Waveguide Dyadic Green's Functions

2.5 Derivation of Green's Functions inside an isolated spherical DRA

Chapter 3. DRA Excited by the Cavity-Backed Spiral Slot

3.1 Introduction

3.2 Problem Formulation

3.3 Efficient Computation of Ydmn and Ycmn

3.4 Radiation Fields

3.5 Numerical Results and Discussion

Chapter 4 Conclusion

Acknowledgment

References

Appendix A Potential Green's Functions Used in this Thesis

Appendix B Derivation of Equation (3.3.1)

Appendix C One Publish Produced During the Study