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博碩士論文 etd-0425102-125608 詳細資訊
Title page for etd-0425102-125608
論文名稱
Title
具有圓錐形輻射場型之平板天線新型設計
NOVEL DESIGNS OF PATCH ANTENNAS WITH CONICAL RADIATION PATTERNS
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
119
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2002-04-23
繳交日期
Date of Submission
2002-04-25
關鍵字
Keywords
高階模態平板天線、圓錐形輻射場型、PBG結構、槽孔接地面
BROADBAND OPER, WIDE BEAMEIDTH, PATCH ANTENNAS
統計
Statistics
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中文摘要
本論文提出三維平板天線的設計概念,並在本文中探討如何增加天線輻射波束寬和阻抗頻寬兩個主題。在增加輻射波束寬設計上,提出倒V形輻射金屬設計來增加線性極化波束寬和利用三維方形接地面結構使天線圓極化3-dB輻射波束寬可達110°以上。另一增加阻抗頻寬的研究上,我們提出V形輻射金屬片、W形接地面和一種縮短同軸線饋針技術的寬頻平板天線設計,克服同軸線饋入寬頻平板天線設計的阻抗匹配的問題以增加天線的阻抗頻寬。最後,各項寬頻設計都將以行動通訊基地台的天線規格製作出可實際應用於現今通訊的產品。
Abstract
Novel designs of three-dimensional patch antennas for beamdwidth enhancement and broadband operation have been proposed in this dissertation. For the beamwidth enhancement, the patch antenna with an inverted V-shaped patch has been proposed, and the antenna’s radiation beamwidths have been broadened. Another beamwidth enhancement design using a three-dimensional square ground structure has also been demonstrated, and the 3-dB beamwidth of the CP radiation can reach more than 110°. In addition to the designs of beamwidth enhancement, the broadband patch antennas with a V-shaped patch, a W-shaped ground plane and a short probe-pin have been proposed. These novel structures can have significantly reduced probe-pin length and obtain a good impedance matching over a wide frequency range. Finally, a 1 × 2 broadband patch antenna array, suitable for base-station antenna applications for mobile communications systems, has also been studied
目次 Table of Contents
第一章 序論 (Introduction) .1
1.1 概述 .1
1.2 文獻導覽 .2
1.3 內容提要 3

第二章 具有圓錐形輻射場型之縮小化圓形平板天線設計
(A compact circular patch antenna for conical-pattern radiation)
2.1 概述 .6
2.1.1 TM01模態圓形平板天線之特性分析 7
2.2 天線設計 8
2.3 模擬與實驗結果 15
2.4 心得與討論 22

第三章 具有圓錐形輻射場型之雙頻圓形微帶天線設計 (Dual-band circular microstrip antenna for conical-pattern radiation)
3.1 概述 23
3.2 天線設計 24
3.3 模擬與實驗結果 24
3.3.1 以堆疊高度調整頻率比之雙頻圓形微帶天線設計 24
3.3.2 以平板面積調整頻率比之雙頻圓形微帶天線設計 34
3.4 心得與討論 42

第四章 具有挖槽接地面之縮小化高階模態環形平板天線設計 (A higher-order-mode compact annular-ring patch antenna with a slotted ground plane)
4.1 概述 43
4.1.1 TM21模態環形平板天線之特性分析 44
4.2 天線設計 45
4.3 模擬與實驗結果 24
4.3.1 縮小化之TM21模態環形平板天線設計 51
4.3.2 具有反射背板之縮小化TM21模態環形平板天線設計
54
4.4 心得與討論 79

第五章 具有PBG接地面之圓錐形輻射場型環形微帶天線 (A conical-pattern annular-ring microstrip antenna with a photonic bandgap ground plane)
5.1 概述 80
5.1.1 PBG結構之特性分析 81
5.2 天線設計 84
5.3 模擬與實驗結果 84
5.4心得與討論 93

第六章 挖槽及PBG接地面在空氣介質之TM21模態環形平板天線上之特性 (Effect of slotted and photonic bandgap ground planes on the characteristics of an air-substrate annular-ring patch antenna at TM21 mode)
6.1 概述 94
6.2 天線設計 95
6.3 模擬與實驗結果 95
6.4 心得與討論 107

第七章 結論 (Conclusions) 108
參考文獻 (References) 110

參考文獻 References
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