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研究生: 劉佳泓
Chia-hung Liu
論文名稱: 具槽孔之非對稱三角形單極天線於筆記型電腦之應用
An Asymmetric Triangular Monopole Antenna With a Slot for Laptop Applications
指導教授: 徐敬文
Ching-Wen Hsue
口試委員: 魏炯權
none
黃正亮
none
黃進芳
none
劉榮宜
none
學位類別: 碩士
Master
系所名稱: 電資學院 - 電子工程系
Department of Electronic and Computer Engineering
論文出版年: 2007
畢業學年度: 95
語文別: 中文
論文頁數: 65
中文關鍵詞: 三角形單極天線槽孔筆記型電腦之應用
外文關鍵詞: Triangular Monopole, slot, Laptop Applications
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  • 本論文主要在探討一個新型態多頻帶具槽孔的非對稱三角形天線在筆記型電腦上的應用,天線的構成是由一個三角形的單極天線以及一個槽孔。

    本文使用折疊的方式將非對稱三角形輻射體縮小,並在其上切一道槽孔以增加低頻的阻抗頻寬及使高頻的阻抗匹更好。

    本論文所提出的天線有效的操作範圍是在CDMA (824-894 MHz)、GSM (880-960MHz)、 DCS (1710-1880 MHz)、PCS (1850-1990 MHz) 和 WCDMA (1920-2170 MHz)取VSWR的範圍在2.5以下,詳細的設計尺寸以及各項參數的變化影響在文章中都會說明。


    A novel multi-band asymmetric triangular monopole antenna (ATMA) with a slot for Laptop applications is explored. The antenna consists of a driven triangular monopole and slot strips.

    The asymmetric triangular patch is folded to reduce the size of the antenna, and a cut was employed to increase the bandwidth of the lower operating band and to improve impedance matching of upper operating band.

    The proposed antenna operates effectively in the CDMA (824-894 MHz), GSM (880-960 MHz), DCS (1710-1880 MHz), PCS (1850-1990 MHz) and WCDMA (1920-2170 MHz) within VSWR of 2.5:1. Detail criteria with respect to geometrical parameter variation are given to expedite design process.

    中文摘要………………………………………………………………Ⅰ 英文摘要………………………………………………………………Ⅱ 誌謝……………………………………………………………………Ⅲ 目錄……………………………………………………………………Ⅴ 圖表索引………………………………………………………………Ⅷ 第一章 緒論 ………………………………………………………… 1 1.1 研究動機與目的……………………………………………….. 1 1.2 一些常用的商用頻段規格…………………………………….. 2 1.3 內容大綱……………………………………………………….. 3 第二章 基本天線理論與設計………………………………………… 4 2.1微帶天線………………………………………………………... 4 2.2雙極天線(Dipole)…………………………………………...….. 6 2.3單極天線(Monopole)…………………………………………... 10 2.4 天線產生共振的定義…………………………………………..13 2.5 天線設計的流程…………………………………………..……15 第三章 Tab單極天線理論分析……………………………………..…..17 3.1 Tab單極天線架構介紹……….....…..…..…..…..…..…..………17 3.2三角形單極天線架構介紹……………………...…………….....21 第四章 非對稱三角形輻射體......…....…………………………………25 4.1 設計概念….……………………………………………………25 4.2 等腰三角形輻射體實驗結果…………………………….……26 4.3 不同三角形輻射體的模擬與實驗……………………….……29 4.4 非對稱三角形實驗結果與分析…………………………….…34 第五章 具槽孔之非對稱三角形單極天線………………..................…39 5.1 實際筆記型電腦空間限制……………………………………...39 5.2 天線尺寸的縮小…………………………………………. .……40 5.3 具槽孔之非對稱三角形單極天線………………………...……42 5.4 實驗量測結果與分析……………………………………...……46 5.5 Chamber筆電天線量測………………………………….. .……52 5.6 Free space天線量測與討論…………………………….. ...……58 第六章 結論……………………………………………………….…….62 參考文獻……………………………………………………………..…..63

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