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研究生:曹偉威
研究生(外文):Wei-Wei Cao
論文名稱:應用於戶外WiFi之2.4 GHz和5 GHz雙極化高增益陣列天線
論文名稱(外文):2.4 GHz and 5 GHz Dual-Polarization High-Gain Antenna Arrays for Outdoor WiFi Application
指導教授:鄭瑞清
指導教授(外文):Jui-Ching cheng
口試委員:鄧聖明金國生李士修丘增杰鄭瑞清
口試日期:2018-07-26
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電子工程系
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:2018
畢業學年度:106
語文別:中文
論文頁數:121
中文關鍵詞:微帶陣列雙極化
外文關鍵詞:microstrip arraydual-polarization
相關次數:
  • 被引用被引用:2
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  • 下載下載:167
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本論文提出分別操作在2.4 GHz和5 GHz頻段之高增益雙極化陣列天線。天線單體基本架構為貼片天線,擁有低成本、易加工製造等優點。這兩個陣列天線以同樣的架構,實現在共同的多層介質中。每個天線單體從兩個互相垂直的方向饋入以達成雙極化的效果。利用寄生貼片和足夠的空氣層高度,可大幅改善貼片天線天生窄頻的缺點,以滿足WiFi頻寬的要求。
接著利用所設計出的天線單體,以1/4波長阻抗轉換器和T-junction組成2.4 GHz 4×2和5 GHz 8×4之天線陣列。最後完成的天線,大小為360 mm×360 mm×23 mm,增益分別達到16 dBi和22 dBi。但是10 dB頻寬則無法滿足,在2.4 GHz頻帶原因為頻偏,在5 GHz頻帶則因天線本身頻寬太小。
This thesis presents two high-gain dual-polarization antenna arrays for 2.4 GHz and 5 GHz band separately. The antenna element is a patch antenna, featuring low cost and ease of manufacturing. The two antenna arrays share the same architecture and are realized on the same substrate layer structure. Each antenna element is fed from two orthogonal directions to produce dual-polarization effect. By parasitic patches and sufficient air layer heights, the inherent low-bandwidth shortcoming of patch antennas is improved.
  The antenna elements are connected by quarter-wave transformers and T-junctions to form a 4×2 antenna array for 2.4 GHz operation and a 8×4 antenna for 5 GHz operation. Finally, the antenna is realized in a size of 360 mm×360 mm×23 mm. The gains are 16 dBi and 22 dBi for the 2.4 GHz and 5 GHz antenna arrays, respectively. But, the 10-dB bandwidth is not met. The reason for the 2.4 GHz antenna array is frequency shift, while the bandwidth of the 5 GHz antenna array is simply too narrow.
摘要 i
Abstract ii
誌謝 iv
目錄 v
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1 前言 1
1.2 研究動機與背景 2
1.3 研究目標 10
1.4 章節概要 12
第二章 天線設計 13
2.1 概論 13
2.2 微帶天線 14
2.3 貼片天線基礎理論分析 16
2.4 堆疊貼片天線基礎理論及結構分析 21
2.5 貼片金屬雙極化單體天線設計 22
2.5.1. 設計簡介 22
2.5.2. 2.4 GHz頻段天線設計流程 22
2.5.3. 增加頻寬設計結構 28
2.5.4. 參數探討 31
2.5.5. 2.4 GHz槽孔天線設計 33
2.5.6. 參數探討 39
2.5.7. 2.4 GHz金屬雙極化單體天線實作 41
2.5.8. 5 GHz 頻段天線 47
2.5.9. 5 GHz金屬雙極化單體天線實作 56
2.5.10. 饋入線改善 64
第三章 貼片金屬雙極化陣列天線 67
3.1 概述 67
3.2 陣列天線基礎理論與結構分析 67
3.3 2.4 GHz 2×2貼片金屬雙極化天線陣列 70
3.3.1. 設計流程 70
3.3.2. 四分之一波長阻抗轉換器 71
3.3.3. 2.4 GHz 2×2 貼片金屬雙極化天線陣列Port 1設計 73
3.3.4. 2.4 GHz 2×2 貼片金屬雙極化天線陣列Port 2 設計 76
3.4 2.4 GHz 4×2 貼片金屬雙極化天線陣列 81
3.5 5 GHz 2×2貼片金屬雙極化天線陣列 85
3.5.1. 設計流程 85
3.5.2. 5 GHz 2×2貼片金屬雙極化天線陣列Port 1 88
3.5.3. 5 GHz 2×2 貼片金屬雙極化天線陣列Port 2 設計 91
3.6 5 GHz 4×4 貼片金屬雙極化天線陣列 95
3.6.1. 設計流程 95
3.6.1. 5 GHz 4×4貼片金屬雙極化天線陣列Port 1 97
3.6.2. 5 GHz 4×4貼片金屬雙極化天線陣列Port 2 100
3.7 5 GHz 8×4 貼片金屬雙極化天線陣列 103
3.8 2.4 GHz 與 5 GHz 雙極化高增益陣列天線 107
3.8.1. 2.4 GHz 與 5 GHz 陣列天線模擬與量測 109
第四章 結論 115
參考文獻 120
[1] Hassan Tariq Chattha, Yi Huang, Stephen J.Boyes, and Xu Zhu,“Polarization and Patten Diversity-Based Dual-Feed Plannar Inverted-F Antenna,” IEEE Transactions On Antennas And Propagation, Vol. 60, NO. 3, pp. 1532-1539, March 2012.
[2] S. Gao, L. W. Li, M. S. Leong, and T. S. Yeo, “A Board-Band Dual- Polarized Microstrip Patch Antenna With Aperture Coupling,” IEEE Transactions On Antennas And Propagation, Vol. 51, NO. 4, pp. 898-900, April 2003.
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[4 ]C.-H. Cai, J.-S. Row and K.-L. Wong, “ Dual-Frequency Microstrip Antenna with Dual Circular Polarization ,” Electronics Letters , Vol. 42, pp. 1261-1262, 2006.
[5] Jui-Han Lu, Chia-Luan Tang, Kin-Lu Wong, “Single-Feed Slotted Equilateral-Triangular Microstrip Antenna For Circular Polarization,” IEEE Transactions On Antennas And Propagation, Vol. 47, No. 7, pp. 1174-1178, July 1999.
[6] Yong-jin Kim, Joong-kwan Kim, Jung-han Kim and Hong-min Lee, “Reconfigurable Annular Ring Slot Antenna with Circular Polarization Diversity,” Proceedings of Asia-Pacific Microwave Conference, pp.1-4, 2007.
[7] Y.J.Sung , “Reconfigurable Patch Antenna for Polarization Diversity,” IEEE Transactions On Antennas And Propagation, Vol. 56 , No. 9, pp. 3053-3054, March 2009.
[8] Chow-Yen-Desmond Sim, Chun-Chuan Chang, and Jeen-Sheen Row, “Dual-Feed Dual-Polarized Patch Antenna With Low Cross Polarization and High Isolation,” IEEE Transactions On Antennas And Propagation, Vol. 57, No. 10, pp. 3405-3409, October 2009.
[9] Shing-Lung Steven Yang, Kwai-Man Lu, Hau-Wah Lai, Ahmed-A. Kishk and Kai-Fong Lee, “A Dual-Polarized Antenna with Pattern Diversity” IEEE Antennas and Propagation Magazine, Vol. 50, No.6, pp. 71-79, December 2008.
[10] X. Wang, W. Chen, Z. Feng, and H. Zhang, “Compact Dual-Polarized Antenna Combining Printed Monopole and Half-Slot Antenna for MIMO Applications,” Antennas and Propagation Society International Symposium, 2009. APSURSI 09. IEEE , pp. 1-4, 2009.
[11] 廖晉瑩, 〈5 GHz 頻段之高增益雙極化微帶天線陣列〉, 長庚大學, 碩士論文, 民國101年
[12] 許君瑞, 〈X 波段之雙極化16×16貼片天線陣列〉, 長庚大學,碩士論文, 民國102年
[13] 王舜煥, 〈5 GHz 頻段之高增益雙極化微帶天線陣列〉, 台北科技大學, 碩士論文, 民國104年
[14] Seung-Tae Ko,Jeong-Hae Lee, ”Broadband Mtamaterial Antenna Using Folded Parasitic Patch,” Antennas and Propagation, pp. 1051-1053, 2011.
[15] W. K. Wan Ali , ”Broadband Square Microstrip Patch Antenna with Suspended Parasitic Element” Antennas, Propagation and EM Theory,pp. 50-53, 2003.
[16] MohamedSanad, ” A compact Dual-Broadband Microstrip Antenna Having Both Stacked and Planar Parasitic Elements,” Antennas and Propagation Society International Symposium, pp. 6-9, 1996.
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