臺灣博碩士論文加值系統

本論文根據現今小型化多媒體行動裝置的發展趨勢，提出多操作頻帶之平面式單極天線設計，並將天線分別應用在膝上型電腦、行動電話、USB無線網路卡三種不同行動通訊裝置的系統接地面上，也都能提出一因應的解決方案來達到適用於未來的WLAN (Wireless Local Area Network；無線區域網路) / WiMAX (Worldwide Interoperability for Microwave Access；微波存取全球互通)無線通訊系統規範，同時也能維持良好的輻射特性。

This thesis, on the basis of the development trend of present miniaturized multi-media mobile devices, proposes a uni-planar monopole antenna design for multi-band operations. This antenna can be installed on the ground surfaces of three different mobile communication systems: laptop computers, mobile phones, and USB wireless network cards. This design represents a unified solution to both WLAN (Wireless Local Area Network) and WiMAX (Worldwide Interoperability for Microwave Access) wireless communication standards. Antenna radiation characteristics were maintained excellent for the proposed antenna installed in all these three environments.

封面內頁
簽名頁
授權書．．．．．．．．．．．．．．．．．．．．．．．．．．．iii
中文摘要．．．．．．．．．．．．．．．．．．．．．．．．．．iv
英文摘要．．．．．．．．．．．．．．．．．．．．．．．．．．v
誌謝．．．．．．．．．．．．．．．．．．．．．．．．．．．．vi
目錄．．．．．．．．．．．．．．．．．．．．．．．．．．．．vii
圖目錄．．．．．．．．．．．．．．．．．．．．．．．．．．．ix
表目錄．．．．．．．．．．．．．．．．．．．．．．．．．．．xi

第一章 緒論
1.1 研究背景．．．．．．．．．．．．．．．．．．．．．．．．1
1.2 研究動機．．．．．．．．．．．．．．．．．．．．．．．．4
1.3 內容提要．．．．．．．．．．．．．．．．．．．．．．．．5
第二章 內藏於膝上型電腦之新型平面式單極天線設計
2.1 概述．．．．．．．．．．．．．．．．．．．．．．．．．．7
2.2 天線擺放於膝上型電腦上的位置說．．．．．．．．．．．．．9
2.3 天線結構介紹．．．．．．．．．．．．．．．．．．．．．．12
2.4 討論三個共振模態的產生．．．．．．．．．．．．．．．．．13
2.4.1 三個共振模態電流分佈的討論．．．．．．．．．．．．．．15
2.5 天線返回損失特性的實驗結果與討論．．．．．．．．．．．．20
2.6 天線輻射特性的討論．．．．．．．．．．．．．．．．．．．24
2.7 本章綜合結論．．．．．．．．．．．．．．．．．．．．．．27
第三章 改良型平面式單極天線設計
3.1 概述．．．．．．．．．．．．．．．．．．．．．．．．．．28
3.2 天線結構介紹．．．．．．．．．．．．．．．．．．．．．．29
3.3 討論三個共振模態的產生．．．．．．．．．．．．．．．．．30
3.4 天線返回損失特性的實驗結果與討論．．．．．．．．．．．．34
3.5 天線輻射特性的討論．．．．．．．．．．．．．．．．．．．38
3.6 天線置放在不同接地面位置的討論．．．．．．．．．．．．．41
3.7 本章綜合結論．．．．．．．．．．．．．．．．．．．．．．43
第四章 討論改良型平面式單極天線於行動電話與USB無線網路卡系統接地面上的變化
4.1 概述．．．．．．．．．．．．．．．．．．．．．．．．．．44
4.2 改良型平面式單極天線於行動電話裝置上的介紹．．．．．．．45
4.2.1 天線返回損失特性的實驗結果與討論．．．．．．．．．．．48
4.3 改良型平面式單極天線於USB無線網路卡裝置上的介紹．．．．51
4.3.1 天線返回損失特性的實驗結果與討論．．．．．．．．．．．54
4.4 天線輻射特性的討論．．．．．．．．．．．．．．．．．．．59
4.5 本章綜合結論．．．．．．．．．．．．．．．．．．．．．．63
第五章 結論．．．．．．．．．．．．．．．．．．．．．．．．64
參考文獻．．．．．．．．．．．．．．．．．．．．．．．．．65

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