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研究生:黃浩
研究生(外文):Hao Huang
論文名稱:圓極化雙層堆疊三角形植入電容微帶天線應用於4G頻段
論文名稱(外文):A Circularly Polarized Dual Stack Triangular Patch antenna with Loaded Capacitor used in 4G Applications
指導教授:梁明正
指導教授(外文):"none"
學位類別:碩士
校院名稱:國立高雄大學
系所名稱:電機工程學系碩士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2015
畢業學年度:103
語文別:中文
論文頁數:67
中文關鍵詞:三角形微帶天線堆疊結構電容植入圓極化4G
外文關鍵詞:triangular microstrip antennastacked structurecapacitor-loadedcircularly polarization4G
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  • 被引用被引用:0
  • 點閱點閱:244
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  • 下載下載:98
  • 收藏至我的研究室書目清單書目收藏:0
工作在相同頻率時,比起矩形微帶天線,三角形微帶天線的面積較小。而利用放置負載電容於天線體與接地面間,除了允許微帶天線操作在比原本還要低的工作頻率外,也不因此降低輻射效益,這種形式的天線被稱為負載電容微帶天線。改變負載電容位置與負載電容值,事實上也連續不斷地改變微帶天線的操作頻率,這樣的特性用在微帶天線上是有益的。負載電容微帶天線可以使用在原本傳統微帶天線面積不足之上,或者可以使用在需要調整操作頻率的設備上。堆疊結構可以使各層工作在不同頻率,各層的特性可以被組合在一起。
在本論文中,我們會討論達成4G LTE多種頻段需求以及圓形極化的設計。首先,我們會先研究傳統三角形微帶天線,接著介紹電容植入的降頻方法的特性,並提出堆疊結構以及圓極化設計概念。藉著將圓極化設計以及電容植入的降頻設計,結合於一個以三角形微帶天線為基礎的堆疊結構,我們即可完成工作於不同頻段並且圓極化的天線。
Operating at the same frequencies, triangular microstrip antenns have smaller patch than rectangular microstrip antenns. By loading a capacitor between the radiator and ground of a patch antenna allows the patch antenna to operate at a frequency much lower than the original operating frequencies of the patch antenna capacitance of the loaded capacitor, one can virtually change the operating frequency of the patch antenna continuously. And for the loaded capacitor antenna, it is not reduction radiation efficiency. This characteristic has broadened the usefulness of traditional patch antenna, or can be used when one needs the operating frequency to be tunable in some large ranges. Stacked structure can operate at different frequencies on different layers. The characteristics of each layer can be bonded together.
In this paper, we will discuss the design to achieve 4G LTE multiple bands requirement and circularly polarization design. First, we will study traditional triangular microstrip antenna. We will introduce the characteristics of capacitor-loaded technique to reduce frequency and bring up the concepts of stacked structure and circularly polarization design. By combining CP design and capacitor-loaded design into a stacked structure based on triangular microstrip antenna, we can accomplish the antennas operated at different bands and CP.
第一章 序論
1-1 簡介
1-2 研究背景與動機
1-3 研究目的
第二章 微帶天線基本結構
2-1 概述
2-2 微帶天線基本架構
2-3 微帶天線公式
第三章 負載電容
3-1 概述
3-2 傳統縮小化設計
3-2-1 輻射體上挖溝槽
3-2-2 輻射體加短路棒
3-2-3 輻射體加入負載晶片電阻
3-3 使用負載電容縮小化原理
第四章 設計方法與結果分析
4-1 設計方式
4-2 堆疊結構
4-3 圓形極化
4-4 設計與結果
4-4-1 未加電容,截角及饋入偏移,下層大小改變,頻率變化
4-4-2 加電容,上層無截角,饋入無偏移
4-4-3 加電容,上層無截角,饋入偏移
4-4-4 加電容,上層截角,饋入偏移
4-4-5 設計符合頻段以及其他參數分析
第五章 結論
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[2] 白光弘, ”天線原理及應用”,ISBN 957-9509-85-9,July,1992
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[9] Payam Nayeri, Kai-Fong Lee, Atef Z. Elsherbeni and Fan Yang, “Dual-Band Circularly Polarized Antennas Using Stacked Patches With Asymmetric U-Slots”, IEEE Antennas and wireless propagation letters, vol. 10,pp.492~495 ,May, 2011.
[10] Oluyemi P. Falade, Masood Ur Rehman, Yue Gao,Xiaodong Chen, and Clive G. Parini, “Stacked Patch Circular Polarized Antenna for GPS/Galileo Receiver Applications”, IEEE EUCAP, vol. 6, pp.1992-1995, Dec.2011
[11] Oluyemi P. Falade, Masood Ur Rehman, Yue Gao,Xiaodong Chen, and Clive G. Parini, “Single Feed Stacked Patch Circular Polarized Antenna for Triple Band GPS Receivers”, IEEE Trans. Antennas Propagat,, vol. 60,pp.4479-4484, Oct. 2012
[12] Oluyemi P. Falade, Yue Gao, Xiaodong Chen and Clive Parini, “Stacked-Patch Dual-Polarized Antenna for Triple-Band Handheld Terminals”, IEEE Antennas and wireless propagation letters, vol.12,pp.202-205, 2013.
[13] J. H. Lu and K. L. Wong, “Single-Feed Circularly Polarized Equilateral Triangular Microstrip Antenna with a Tuning Stub,” IEEE Trans. Antennas Propagat, vol. 48, pp. 1869-1972, Dec. 2000.
[14] J. H. Lu, C. L. Tang, and K. L. Wong, “Single-Feed Slotted Equilateral Triangular Microstrip Antenna for Circular Polarization,” IEEE Trans. Antennas Propagat, vol. 47, pp.1174-1178ˈSept. 1999.
[15] J. H. Lu, C. L. Tang, and K. L. Wong, “Circular polarization design of a single-feed equilateral-triangular microstrip antenna,” Electron. Lett. vol. 34, pp. 319–321, Feb. 19, 1998.
[16] C. L. Tang, J. H. Lu, and K. L. Wong, “Circularly polarized equilateral-triangular microstrip antenna with truncated tip,” Electron. Lett, vol. 34, pp.1277-1278, June. 13, 1998
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