博碩士論文 955301020 詳細資訊




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姓名 薛博文(Po-wen Hsueh)  查詢紙本館藏   畢業系所 電機工程學系在職專班
論文名稱 無線通訊之三頻天線設計
(Design of Tri-Band Antenna for Wireless Communication)
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摘要(中) 本研究論文主要是針對WLAN(無線區域網路)與WiMAX (全球互通微波存取)之接收天線進行研究與設計,以滿足無線網路系統上之應用。此外,在實際無線網路應用中,寬頻天線設計有較差之選擇性,此寬頻天線將會造成通訊系統的干擾問題,故設計適用於各工作頻帶之三頻天線,將使得通訊品質更好。此天線主要設計是利用FR4印刷電路板上50歐姆微帶線饋入方式做為載板,再利用倒F型式設計2.45/3.5 GHz雙頻帶之天線,最後利用寄生方式設計5.5GHz 頻帶天線,如此的方式可保有較小之天線尺寸,便可設計出附合應用於2.45/3.5/5.5 GHz 無線網路三頻天線。
此縮小化之三頻天線設計,將滿足應用於手持移動式產品上空間上不足之要求,同時滿足單天線多系統應用的方式。
摘要(英) The goal of the thesis is to design the antennas for WLAN (Wireless Local Area Network) and WiMAX (Worldwide Interoperability for Microwave Access).Practically the board-band antennas are of poor selectivity .It is easy to be affected by system noises which offer worsen the quality. Therefore, multi-band antenna should be more suitable to multi-band communication systems. In the thesis, the antenna is first designed in two bands, 2.45 and 3.5 GHz, by using planar inverted-F antennas (PIFA).
Thus, a tri-band antenna in 2.45, 3.5, and 5.5GHz is design by using a parasitic coupling strip that is made by 50 ohm microstrip line feed-in on FR4 circuit broad. Also, the proposed design is of very compact size, which is desired in many wireless network applications.
關鍵字(中) ★ 無線區域網路
★ 全球互通微波存取
★ 倒F型天線
★ 三頻天線
★ 寄生天線
關鍵字(英) ★ WLAN
★ WiMAX
★ PIFA
論文目次 中文提要 ……………………………………………………………… i
英文提要 ……………………………………………………………… ii
誌謝 ……………………………………………………………… iii
目錄 ……………………………………………………………… iv
圖目錄 ……………………………………………………………… vi
表目錄 ……………………………………………………………… ix
第一章 緒論………………………………………………………… 1
1-1 概述………………………………………………………… 1
1-2 研究動機…………………………………………………… 1
1-3 論文大綱…………………………………………………… 2
第二章 天線原理…………………………………………………… 3
2-1 倒F 型天線之原理與演進………………………………… 3
2-2 倒F 型天線設計原理與結構……………………………… 5
2-3 平板天線頻寬……………………………………………… 7
2-4 寄生天線理論……………………………………………… 8
第三章 三頻天線設計……………………………………………… 11
3-1 雙頻天線設計……………………………………………… 11
3-2 三頻天線設計……………………………………………… 23
3-3 本章總結…………………………………………………… 29
第四章 天線量測與分析…………………………………………… 38
4-1 量測儀器與設備…………………………………………… 39
4-2 天線特性量測……………………………………………… 40
4-3 本章總結…………………………………………………… 50
第五章 結論………………………………………………………… 52
參考文獻 ……………………………………………………………… 54
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指導教授 丘增杰(Tsen-Chieh Chiu) 審核日期 2009-12-7
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