臺灣博碩士論文加值系統

摘要
本論文提出兩項分別應用於大、小接地面窄邊框行動裝置之低剖面天線設計。第一項天線設計為應用於筆記型電腦之無實體結構DTV/LTE天線設計，其是透過改變筆記型電腦右側轉軸為非導體材質，並利用螢幕、鍵盤接地面及金屬轉軸作為天線之共振路徑，形成數個偶極及迴圈路徑，並以一具有匹配電路之饋入部激發螢幕接地面、鍵盤接地面及金屬轉軸形成之共振路徑，使本天線可涵蓋DTV/ LTE頻帶。第二項天線設計為應用於智慧型手機之 LTE八頻天線設計，其是以立體結構設計並配置於手機電路板下方淨空區間上，在薄型、窄邊框化手機之既有空間適當設計三個單極之長度、彎折及其間之間距，以調整共振頻率及匹配產生所需之共振模態，在3 × 34 × 6 mm3大小且毋須任何元件，可涵蓋LTE八頻頻帶操作。

This thesis proposes two antenna designs for slim mobile communication devices with narrow borders. At first, a switchable non-physical DTV/LTE antenna for laptop computers is presented. Two techniques are applied to achieve DTV/LTE operation with non-physical antenna design. The first technique is to replace one metal hinge with non-conductor material one to generate several lower frequency resonant paths, which are provided by the existing display ground plane, keyboard ground plane, and the metal hinge.
The second one is a LTE eight-band antenna for handsets. By properly design the length, bending and spacing of three monopole structure to adjust the resonant frequencies and matching, the antenna with low-profile of 6 mm can cover eight-band operation. The antenna size is only 3 × 34 × 6 mm3 without any components that is ideal for narrow border applications.

目錄
誌謝 ii
摘要 iv
ABSTRACT v
目錄 vi
表目錄 viii
圖目錄 ix
1. 緒論 1
1.1研究背景 1
1.2文獻導覽 2
1.3論文提要 13
2. 應用於筆記型電腦之DTV/LTE天線設計 14
2.1 概述 14
2.2 天線結構設計與技術原理說明 14
2.3 天線實驗與量測結果 17
2.4 天線電流分析 21
2.5天線參數分析 23
2.6天線設計之輻射特性及效率 26
2.7本章結論 28
3. 應用於智慧型手機之LTE八頻天線設計 29
3.1 概述 29
3.2 天線結構設計與技術原理說明 29
3.3 天線實驗與量測結果 31
3.4 天線電流分析 34
3.5天線參數分析 36
3.6天線場型特性 38
3.7 本章結論 41
4. 結論 42
參考文獻 43
自傳 46

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