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| 研究生： |
魏嘉賢 Wei, Chia-Hsien |
|---|---|
| 論文名稱： |
利用濾波器增加天線頻寬之設計 Antenna Bandwidth Enhancement Design with Filter |
| 指導教授： |
李文熙
Lee, Wen-Hsi |
| 學位類別： |
碩士 Master |
| 系所名稱： |
電機資訊學院 - 電機工程學系 Department of Electrical Engineering |
| 論文出版年： | 2010 |
| 畢業學年度： | 98 |
| 語文別： | 中文 |
| 論文頁數： | 39 |
| 中文關鍵詞： | 可攜式行動通訊裝置天線 、帶拒濾波電路 、高通濾波電路 、LTE |
| 外文關鍵詞： | mobile phone antenna, bandstop filter, highpass filter, LTE |
| 相關次數： | 點閱：63 下載：4 |
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本文中提出一種應用於行動通訊裝置中利用濾波器增加天線頻寬之設計概念。文中共提出了兩種的濾波電路來增加低頻的使用頻寬，並將分別詳細探討此兩種結合不同濾波器之天線設計原理與現象分析。第二章中，我們利用一帶拒濾波器電路，將天線的低頻模態由單一模態共振激發成單一模態雙共振，增加了低頻頻帶的頻寬，使其能涵蓋GSM850/900頻帶。第三章中，我們則是運用高通濾波電路在LTE使用頻帶內，產生一額外模態，並配合原天線模態使其能涵蓋LTE band 17與GSM850頻帶。 最後以天線應用於可攜式行動通訊裝置中未來的展望作為本論文的總結。
Novel antennas having enhancing bandwidth by using filter circuit for mobile phone are proposed in the thesis . Two different filter circuit are proposed to enhance the operating bandwidth and the design principle , filter circuit parameter are discussed respectively in the study . In chapter two , using a bandstop filter to achieve a dual-resonance excitation in the lower band , such that the enhanced bandwidth can cover GSM850/900 operation . In chapter three ,we achieve a dual-resonance mode in the lower band by using highpass filter and the bandwidth can cover LTE and GSM850 . In the end , we will discuss the future study of antennas applied for the mobile phone antenna .
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校內：2011-08-06公開校外：2011-08-06公開