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研究生: 黃智強
Huang, Chih-Chiang
論文名稱: 適用於無線區域網路之新型雙三角形單極天線
A Novel Double Triangular Monopole Antenna for WLAN Applications
指導教授: 李炳鈞
Li, Bing-Jing
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: 2006
畢業學年度: 94
語文別: 中文
論文頁數: 69
中文關鍵詞: 單極天線無線區域網路
外文關鍵詞: monopole antenna, WLAN
相關次數: 點閱:94下載:6
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  • 本論文採用了一個新型的雙三角形單極天線,最主要是利用兩個三角型的結構,來激發出兩個頻率,且符合無線區域網路所要求的規格(2400~2484MHz與5150~5350MHz)。此兩個三角形最大的特點就是能夠造成電流路徑的增加,使彼此相鄰的共振頻率延伸成為一完整的頻帶,造成頻寬增加的效果,並且因為結構簡單,相對的設計的彈性也較大較方便。在研究中,我們將經由高頻模擬軟體來個別討論所設定的各個參數,並分析其對天線所帶來的影響,並尋求其最適合的特性。
    本天線除了應用在基本的FR4基板上,也會利用氧化鋁與LTCC材料(Dupont 951 tape)來進行模擬與實做,希望利用此一結構,能夠提供具有較高介電常數材料的LTCC設計的空間,使因介電常數上升所造成的頻寬下降得到改善的方式。

    A novel double triangular monopole antenna is proposed. The double triangular structure can not only excite two different resonance frequencies but have better bandwidth to meet the WLAN required specifications (2400~2484MHz and 5150~5350MHz). These two triangles are mainly used to increase the electric current path. The resonant frequencies can be combined to form a wide bandwidth due to the multiple current paths. The proposed antenna has simple structure and can be designed and realized easily. By using the high-frequency simulation software (HFSS), we can obtain the best parameters for the realization of the antenna.
    The antennas are made on typical FR4 substrate and alumina and the simulation for LTCC material will also be provided. The new antenna can improve the problem of narrow band width which often accompanies with the materials of higher dielectric constant.

    目錄 III 表目錄 V 圖目錄 VI 第一章 序論 1 1.1 研究背景 1 1.1.1 無線區域網路與規格介紹 1 1.1.2 無線區域網路與天線 3 1.2 目前相關研究 4 1.2.1 印刷式單極天線 5 1.2.2 LTCC天線 6 1.3 研究目的 8 第二章 天線原理與材料製程介紹 9 2.1 基本天線原理 9 2.1.1 偶極天線[11-13] 9 2.1.2 單極天線[13] 13 2.2 雙三角形單極天線 15 2.3 天線基板材料 16 2.3.1 FR4 16 2.3.2 氧化鋁(Al2O3) 17 2.3.3 LTCC材料 17 第三章 天線設計與模擬簡介 18 3.1雙三角形天線設計 18 3.2 模擬與製作流程介紹 21 3.3 測量方法 24 第四章 模擬與實驗結果 25 4.1 FR4基板的效應 25 4.1.1 基板的大小 25 4.1.2接地板長寬的影響 27 4.2 雙三角形參數的調整 35 4.2.1參數d 36 4.2.2參數l 38 4.2.3參數a 40 4.2.4參數b 42 4.2.5參數s 44 4.2.6參數t 46 4.2.7 各參數的整理 48 4.3 天線的模擬與實做 49 4.4 與雙T形天線的比較 55 4.5 氧化鋁板上的模擬與實做 57 4.6 LTCC材料的模擬 63 4.7 三種材料下天線的比較 67 第五章 結論 68 參考文獻 69

    [1] D. M. Pozar, Microwave and RF Design of Wireless Systems: John Wiley & Sons, 2001.
    [2] W. Kin-Lu, Planar Antennas for Wireless Communications: John Wiley & Sons, 2003.
    [3] Q. Zhu, K. Fu, and T.-z. Liang, "Analysis of planar inverted-F antenna using equivalent models," 2005, vol. 3A, pp. 142-145 vol. 3A.
    [4] K. Yen-Liang and W. Kin-Lu, "Printed double-T monopole antenna for 2.4/5.2 GHz dual-band WLAN operations," in Antennas and Propagation, IEEE Transactions on, 2003, vol. 51, pp. 2187-2192.
    [5] Y. Shih-Huang and W. Kin-Lu, "Dual-band F-shaped monopole antenna for 2.4/5.2 GHz WLAN application," 2002, vol. 4, pp. 72-75 vol.4.
    [6] T. Hao-Chun, C. Wen-Shyang, and W. Kin-Lu, "Integrated rectangular spiral monopole antenna for 2.4/5.2 GHz dual-band operation," 2002, vol. 3, pp. 496-499.
    [7] B. L. Ooi, G. Zhao, M. S. Leong, K. M. Chua, and C. W. L. Albert, "Wideband LTCC CPW-fed two-layered monopole antenna," Electronics Letters, vol. 41, no. 16, pp. 9-10, 2005.
    [8] L. RongLin, G. DeJean, M. Moonkyun, L. Kyutae, S. Pinel, M. M. Tentzeris, and J. Laskar, "Design of compact stacked-patch antennas in LTCC multilayer packaging modules for wireless applications," Advanced Packaging, IEEE Transactions on [see also Components, Packaging and Manufacturing Technology, Part B: Advanced Packaging, IEEE Transactions on], vol. 27, no. 4, pp. 581-589, 2004.
    [9] E. Tentzeris, R. L. Li, K. Lim, M. Maeng, E. Tsai, G. DeJean, and J. Laskar, "Design of compact stacked-patch antennas on LTCC technology for wireless communication applications," 2002, vol. 2, pp. 500-503 vol.2.
    [10] C. Ying and Y. P. Zhang, "Integration of ultra-wideband slot antenna on LTCC substrate," Electronics Letters, vol. 40, no. 11, pp. 645-646, 2004.
    [11] R. Garg, Microstrip antenna design handbook Artech House, 2001.
    [12] C. A. Balanis, Antenna theory :analysis and design, 3 ed: John Wiley, 2005.
    [13] 卓聖鵬, 最新天線工程 全華科技, 1998.
    [14] D. M. Pozar, Microwave Engineering, 3 ed: John Wiley & Sons, 2004.

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