臺灣博碩士論文加值系統

此篇碩士研究論文中提出一新式的頻率選擇面縮小化方法，此方法的核心架構為利用金屬連通柱達成增加結構中的等效電容並藉此降低共振頻率。此方法的優點為可廣泛應用於各種不同的頻率選擇面結構，並提供良好的縮小化效果、斜向入射穩定度，以及額外的共振頻率調整自由度。此篇論文中以多種不同的頻率選擇面作為應用此縮小化方法之範例，並討論其物理特性。此外，本論文中提出一等效電路模型，可精確的預測此結構的頻率響應，並包含斜向入射的效應。最後，本論文介紹了研究過程中進行的兩種實驗量測方法，並比較量測結果與模擬結果以驗證提出之理論。

A novel methodology based on a new concept of via-pair insertion is proposed. The methodology provides a solid, efficient, and flexible way to achieve remarkable element miniaturization, good stability to incident angle, and wide frequency adjustment range. Several FSS designs have been developed and discussed under the proposed concept. An accurate equivalent circuit model with closed-form formulas is proposed as well. Finally, two different experiments were done to validate the proposed methodology. Good agreement is shown among the results of experiments, of the full-wave simulation, and of the proposed equivalent circuit model.

口試委員會審定書 #
誌謝 i
中文摘要 ii
ABSTRACT iii
CONTENTS iv
LIST OF FIGURES vi
LIST OF TABLES ix
Chapter 1 Introduction and Motivation 1
1.1 Previous Works 1
1.2 Modern FSS Applications 7
1.3 Motivation 10
Chapter 2 Proposed Methodology 16
2.1 Illustrated Structure 16
2.2 Mechanism Investigation 25
Chapter 3 Equivalent Circuit Model 34
3.1 Equivalent Circuit with Closed-Form Equations 34
3.2 Mechanism of Oblique Incidence 45
Chapter 4 Advanced Applications 51
4.1 Prototype Structure of Dual-band FSS 51
4.1.1 Structure Illustration 51
4.1.2 Mechanism Analysis 53
4.2 Wi-Fi Application 58
4.3 Tri-band FSS Structure 61
Chapter 5 Experiment Validation and Discussion 65
5.1 Experiment One: Near-Field System (NSI) 66
5.2 Experiment Two: Free Space Measurement 68
5.3 Result Comparison and Discussion 71
Chapter 6 Conclusion and Future Work 73
REFERENCE 75

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