博碩士論文 975301017 詳細資訊




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姓名 黃沅絜(Yuan-Jie Huang)  查詢紙本館藏   畢業系所 電機工程學系在職專班
論文名稱 應用於行動手持裝置之LTE/WWAN天線設計
(LTE/WWAN Antenna Design for Portable Devices Applications)
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摘要(中) 本研究論文中所提出的LTE多頻單極天線設計,可滿足無線廣域網路及長期演進的八頻工作頻段,並適用於內藏行動手持裝置中。首先,調整單極天線幾何圖形,產生0.821GHz、1.762GHz兩個共振頻率點,且可以涵蓋GSM850/GSM900/DCS1800的三個操作頻段。接著,於單極天線旁加上二分之一波長共振的寄生元件,能產生2.352GHz共振頻率點,並涵蓋PCS1900/UMTS2100/LTE2300/LTE2500的四個操作頻段。 最後,再單極天線上增加高度3mm金屬板,來改善低頻阻抗頻寬,讓低頻可以涵蓋LTE700。本文提出一種結構簡單、製作容易、成本低廉且可應用在無線廣域網路中的金屬板與印刷電路板結合的天線。它能涵蓋八個頻帶,包含了LTE700/2300/2500的三個LTE頻段及GSM850/900/DCS1800/PCS1900/UMTS的五個WWAN頻段,且天線體積僅為60 × 17 × 3 mm3。詳細的天線設計及實驗數據將在本論文中說明及討論。
摘要(英) In the thesis, internal WWAN (Wireless Wide Area Network) and LTE (Long Term Evolution) antennas having eight-band operation capability and suitable to be embedded in the portable devices are proposed. First, a modified structure of monopole antenna is used to produce two resonance frequencies at 0.821 GHz and 1.762 GHz, which are able to contain tri-band GSM850/GSM900/DCS1800 operation. Then, the half-wavelength parasitic path adjacent to the monopole antenna results resonance frequency at 2.352 GHz, which coverage PCS1900/UMTS2100/LTE2300/LTE2500 operation. Finally, by using a plate (High 3mm) and printed circuit board (PCB) combination of antenna, it improves impedance bandwidth and covers the LTE700 band. The monopole antenna of a simple structure and being easy to construct with low cost, is presented. It can cover eight bands, including three LTE bands of LTE/700/2300/2500 and five WWAN bands of GSM850/900/DCS1800/PCS1900/UMTS operation, and occupy a compact volume of 60 × 17 × 3 mm3. Detailed antenna designs and experimental results are presented and discussed.
關鍵字(中) ★ 寄生路徑
★ 單極天線
關鍵字(英) ★ parasitic path
★ monopole
論文目次 致 謝.............................................i
摘要.................................................ii
Abstract.............................................iii
目錄.................................................iv
圖目錄...............................................vi
表目錄...............................................ix
第一章 緒論.........................................1
1-1 研究動機........................................1
1-2 文獻回顧........................................3
1-3 章節介紹........................................7
第二章 天線原理與應用...............................8
2-1 天線概述........................................8
2-2 天線原理........................................9
2-2-1 偶極天線......................................9
2-2-2 單極天線......................................13
2-3 寄生元件........................................16
第三章 LTE/WWAN多頻單極天線設計.....................17
3-1 簡介............................................17
3-2 單極天線設計....................................18
3-2-1 天線架構......................................18
3-2-2 天線參數模擬與設計............................19
3-3 寄生天線設計....................................25
3-3-1 天線架構......................................25
3-3-2 天線參數模擬與設計............................26
3-4 總結.............................................33
第四章 天線量測與分析...............................34
第五章 結論.........................................48
附錄.................................................50
參考文獻.............................................58
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指導教授 丘增杰(Tsen-chieh Chiu) 審核日期 2012-7-12
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