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研究生: 蔡淳安
Chun An Cai
論文名稱: 應用於筆電環境之多頻無線區域網路天線設計
Multi-Band Wi-Fi 6E Antenna Designs for Laptop Environment
指導教授: 廖文照
Wen-Jiao Liao
口試委員: 馬自莊
Tzyh-Ghuang Ma
楊成發
Chang-Fa Yang
侯元昌
Yuan-Chang Hou
廖文照
Wen-Jiao Liao
學位類別: 碩士
Master
系所名稱: 電資學院 - 電機工程系
Department of Electrical Engineering
論文出版年: 2022
畢業學年度: 110
語文別: 中文
論文頁數: 77
中文關鍵詞: Wi-Fi 6E立體式開槽孔天線共構天線貼片天線筆電天線
外文關鍵詞: Wi-Fi 6E, open-ended slot antenna, integrated antenna, patch antenna, notebook antenna
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  • 本篇論文提出了兩款適用於筆電環境的天線,操作於Wi-Fi 6E頻段,天線架構簡單且容易製造,兩款天線在未使用LC元件於饋入電路的條件中,均有良好的寬頻表現,符合現今筆電天線設計需求。
    論文中的第一款天線為應用於筆電環境之Wi-Fi 6E多頻立體式開槽孔天線,天線尺寸為52 × 7.65 × 10 mm3。該設計利用開槽孔架構,製造不同的共振路徑長,產生多個模態,槽孔中的Γ型中島結構除了增加高頻模態外,也可以用來調整阻抗匹配。立體式的架構可與筆電內部金屬零組件共構,達到節省空間的目的。共構零組件的標的選擇散熱鰭片,因其為被動元件,不易影響高頻訊號。吾人在天線下方放置不同形式的散熱鰭片,分析最佳的共構方式。
    第二款天線為應用於金屬筆電環境之水平面全向性涵蓋優化之多頻微小化貼片天線模組,天線尺寸為20.4 mm × 12 mm × 5 mm3。主要透過金屬短路柱使貼片天線的0.5波長雙端開路共振模態變為0.25波長單端開路槽孔共振模態,使輻射場型能偏向天線模組的開口方向輻射。天線也透過耦合饋入的方式拓展頻寬。所設計之天線模組在2.45 GHz模態的電場方向垂直於金屬貼片,同時垂直於金屬機殼,符合電場存在邊界條件,受到鏡像電流的影響較小。在雙天線水平面分集增益涵蓋率的分析中可發現,其表現優於筆電上傳統使用的倒F型全向性天線。


    Two antennas designs applicable to the notebook environment are proposed. Both of them operate in the Wi-Fi 6E Band. The proposed antenna structure is simple and easy to manufacture. Wide matching bandwidth are achieved without using any lumped LC components. Exhibited performance characteristics meet the requirements of modern antenna design.
    The first part of this thesis is a three-dimensional multi-band open slot antenna for the notebook environment. The antenna size is 52 × 7.65 × 10 mm3. The open-ended slot structure forms different resonance paths to generate multiple modes. The Γ-type mid-island structure adjusts matching impedance and includes high order modes. The three-dimensional structure is designed with integration of notebook’s internal metal components in mind. The component to be integrated is the cooling fins. Because they are passive components, they impose limited interference toward microwave signals. Several cooling fin configurations are examined with the proposed antenna to find a suitable design.
    The second antenna proposed is a multi-mode miniaturized patch antenna.Its design goal is to optimize the horizontal plane coverage of a notebook with metal enclosure. The size of the antenna is 20.4 mm × 12 mm × 5 mm3. By adding shorting pins in the patch’s cavity TM01 resonant mode can be turned into TM02, which radiates toward the sides of patch opening. The bandwidth of the antenna is made wider by using the coupling feed structure. The electric field of the proposed antenna module is perpendicular to the patch and the notebook’s metal casing, which is less affected by the mirror current. Measured results show that the diversity gain coverage ratio of the two antenna assembly, is better than the one of the conventional two-inverted-F antenna system.

    摘要 III Abstract V 目錄 VII 圖目錄 IX 表目錄 XII 第一章 緒論 1.1 研究背景 1.2 論文組織 第二章 應用於筆電環境之Wi-Fi 6E多頻之立體式開槽孔天線 2.1 研究動機 2.2 Wi-Fi 6E多頻立體式開槽孔天線多頻天線設計 2.2.1 天線設計架構與環境說明 2.2.2 Wi-Fi 6E多頻段開槽孔天線設計 2.2.3 開槽孔天線設計參數分析 2.3 筆電環境對天線效能之分析 2.3.1 天線設置環境說明 2.3.2 天線鄰近金屬塊的分析 2.4 天線實作與效能驗證 2.5 小結 第三章 應用於金屬筆電提供水平面全向性場型之多頻微小化雙貼片天線模組設計 3.1 研究動機 3.2 提供水平面全向性場型之貼片天線模組設計 3.2.1 天線設計架構與環境說明 3.2.2 貼片天線模組共振模態 3.2.3 微小化貼片天線模組設計參數分析 3.3 水平面輻射場型涵蓋率分析 3.3.1 筆電環境架構說明 3.3.2 多頻微小化貼片天線模組置於筆電中之設計架構 3.3.3 MIMO雙天線水平面輻射場型比較 3.4 天線實作與效能驗證 3.5 小結 第四章 結論 參考文獻

    [1] Wi-Fi Alliance, “Wi-Fi CERTIFIED 6,” [online] Available: https://www.wi-fi.org/discover-wi-fi/wi-fi-certified-6, archived July 2020.
    [2] TECHSPOT, “Wi-Fi 6 Explained: The Next Generation of Wi-Fi,” [online] Available:https://www.techspot.com/article/1769-wi-fi-6-explained/,archived August 2020.
    [3] J. Chou, J. Chang, D. Lin, H. Li and T. Wu, "A Compact Loop-Slot Mode Combination Antenna for Ultra-Thin Tablet Computer With Metallic Bottom Cover," in IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 746-749, 2014.
    [4] S. Su, Y. Hsieh and S. Chen, "Integration of Very-Low-Profile Slot Antenna Into Notebook Metal Cover With Narrow Bezel," 2017 International Symposium on Antennas and Propagation (ISAP), 2017, pp. 1-2.
    [5] S.-W. Su, F.-H. Chu and D. Lin, "Internal Two-PIFA System With Comparable Polarization Radiation For Metal Back Cover Tablet," 2014 International Symposium on Antennas and Propagation Conference Proceedings, 2014, pp. 313-314.
    [6] FCC, “FCC Opens 6 GHz Band to Wi-Fi and Other Unlicensed Uses,” [online] Available:https://www.fcc.gov/document/fcc-opens-6-ghz-band-wi-fi-and-other-unlicensed-uses, archived April 2020.
    [7] S.-W. Su, "Compact, Small, Chip-Inductor-Loaded Wi-Fi 6E Monopole Antenna," 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI), pp. 937-938, 2021.
    [8] C. Zhang, S. Yang, S. El-Ghazaly, A. E. Fathy and V. K. Nair, "A Low-Profile Branched Monopole Laptop Reconfigurable Multiband Antenna for Wireless Applications," in IEEE Antennas and Wireless Propagation Letters, vol. 8, pp. 216-219, 2009.
    [9] T. Kang, K. Wong, L. Chou and M. Hsu, "Coupled-Fed Shorted Monopole With a Radiating Feed Structure for Eight-Band LTE/WWAN Operation in the Laptop Computer," in IEEE Transactions on Antennas and Propagation, vol. 59, no. 2, pp. 674-679, Feb. 2011.
    [10] K.-L. Wong, L.-C. Chou and C.-M. Su, "Dual-Band Flat-Plate Antenna With a Shorted Parasitic Element For Laptop Applications," in IEEE Transactions on Antennas and Propagation, vol. 53, no. 1, pp. 539-544, Jan. 2005.
    [11] C. Sim, H. Chien and C. Lee, "Uniplanar Antenna Design With Adhesive Ground Plane for Laptop WLAN Operation," in IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 337-340, 2014.
    [12] J. Deng, J. Li, L. Zhao and L. Guo, "A Dual-Band Inverted-F MIMO Antenna With Enhanced Isolation for WLAN Applications," in IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 2270-2273, 2017.
    [13] D. Sim and J. Choi, "A Compact Wideband Modified Planar Inverted F Antenna (PIFA) for 2.4/5-GHz WLAN Applications," in IEEE Antennas and Wireless Propagation Letters, vol. 5, pp. 391-394, 2006
    [14] H. Chien, C. Sim and C. Lee, "Dual-Band Meander Monopole Antenna for WLAN Operation in Laptop Computer," in IEEE Antennas and Wireless Propagation Letters, vol. 12, pp. 694-697, 2013.
    [15] Z.-X. Xia, K.-W. Leung, W.-K. Lee and N. Yang, "Miniature Dual-Band Meander-Line Monopole Chip Antenna With Independent Band Control," in IEEE Antennas and Wireless Propagation Letters, vol. 18, no. 9, pp. 1873-1877, Sept. 2019.
    [16] C. Lee, S. Su, S. Chen and C. Fu, "Low-Cost, Direct-Fed Slot Antenna Built in Metal Cover of Notebook Computer for 2.4-/5.2-/5.8-GHz WLAN Operation," in IEEE Transactions on Antennas and Propagation, vol. 65, no. 5, pp. 2677-2682, May 2017.

    [17] A. Boldaji and M. A. Antoniades, "Method of Decoupling and Independently Tuning the Second Mode of a Microstrip-Fed Slot Antenna Using Series Inductive Loading," in IEEE Antennas and Wireless Propagation Letters, vol. 12, pp. 1017-1020, 2013.
    [18] Q. Luo, J. R. Pereira and H. M. Salgado, "Compact Printed Monopole Antenna With Chip Inductor for WLAN," in IEEE Antennas and Wireless Propagation Letters, vol. 10, pp. 880-883, 2011.
    [19] K.-L. Wong and C.-Y. Tsai, "Half-Loop Frame Antenna for the LTE Metal-Casing Tablet Device," in IEEE Transactions on Antennas and Propagation, vol. 65, no. 1, pp. 71-81, Jan. 2017.
    [20] S.-W. Su, C.-T. Lee and S.-C. Chen, "Compact, Printed, Tri-Band Loop Antenna With Capacitively-Driven Feed and End-Loaded Inductor for Notebook Computer Applications," in IEEE Access, vol. 6, pp. 6692-6699, 2018.
    [21] S.-C. Chen, J.-L. Zhu and C.-I. G. Hsu, "Compact Double Shorted Loop Sub-6-GHz Dual-Band MIMO Quad-Antenna System," in IEEE Access, vol. 9, pp. 114672-114679, 2021.
    [22] K.-L. Wong, H.-J. Chang, C.-Y. Wang and S.-Y. Wang, "Very-Low-Profile Grounded Coplanar Waveguide-Fed Dual-Band WLAN Slot Antenna for On-Body Antenna Application," in IEEE Antennas and Wireless Propagation Letters, vol. 19, no. 1, pp. 213-217, Jan. 2020.
    [23] Y. Dong, J. Choi and T. Itoh, "Folded Strip/Slot Antenna With Extended Bandwidth for WLAN Application," in IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 673-676, 2017.
    [24] S. Chen and M. Hsu, "LTE MIMO Closed Slot Antenna System for Laptops With a Metal Cover," in IEEE Access, vol. 7, pp. 28973-28981, 2019.
    [25] 郭證毓, 應用於筆電環境之多頻與寬頻槽孔天線, 國立臺灣科技大學, 碩士論文, 民國109年
    [26] S. Zhang, Z. Ying, J. Xiong and S. He, "Ultrawideband MIMO/Diversity Antennas With a Tree-Like Structure to Enhance Wideband Isolation," in IEEE Antennas and Wireless Propagation Letters, vol. 8, pp. 1279-1282, 2009.
    [27] J. Park, J. Choi, J. Park and Y. Kim, "Study of a T-Shaped Slot With a Capacitor for High Isolation Between MIMO Antennas," in IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 1541-1544, 2012.
    [28] S.-W. Su, C.-T. Lee and Y.-W. Hsiao, "Compact Two-Inverted-F-Antenna System With Highly Integrated π-Shaped Decoupling Structure," in IEEE Transactions on Antennas and Propagation, vol. 67, no. 9, pp. 6182-6186, Sept. 2019.
    [29] J.-H. Xun, L.-F. Shi, W.-R. Liu, G.-X. Liu and S. Chen, "Compact Dual-Band Decoupling Structure for Improving Mutual Coupling of Closely Placed PIFAs," in IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 1985-1989, 2017.
    [30] W. Liao, S. Chang, J. Yeh and B. Hsiao, "Compact Dual-Band WLAN Diversity Antennas on USB Dongle Platform," in IEEE Transactions on Antennas and Propagation, vol. 62, no. 1, pp. 109-118, Jan. 2014.
    [31] Q. Li, A. P. Feresidis, M. Mavridou and P. S. Hall, "Miniaturized Double-Layer EBG Structures for Broadband Mutual Coupling Reduction Between UWB Monopoles," in IEEE Transactions on Antennas and Propagation, vol. 63, no. 3, pp. 1168-1171, March 2015.
    [32] X. Tan, W. Wang, Y. Wu, Y. Liu and A. A. Kishk, "Enhancing Isolation in Dual-Band Meander-Line Multiple Antenna by Employing Split EBG Structure," in IEEE Transactions on Antennas and Propagation, vol. 67, no. 4, pp. 2769-2774, April 2019.
    [33] W.-Y. Li, W. Chung and K.-L. Wong, "Highly-Integrated Pattern Switchable MIMO Antennas for 5G Notebook Computer Applications," 2020 International Symposium on Antennas and Propagation (ISAP), 2021, pp. 419-420.

    [34] R. Bhattacharya, R. Garg and T. K. Bhattacharyya, "Design of a PIFA-Driven Compact Yagi-Type Pattern Diversity Antenna for Handheld Devices," in IEEE Antennas and Wireless Propagation Letters, vol. 15, pp. 255-258, 2016.
    [35] C. Rhee et al., "Pattern-Reconfigurable MIMO Antenna for High Isolation and Low Correlation," in IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 1373-1376, 2014.
    [36] J. D. Fredrick, Y. Wang and T. Itoh, "Smart Antennas Based On Spatial Multiplexing Of Local Elements (SMILE) for Mutual Coupling Reduction," in IEEE Transactions on Antennas and Propagation, vol. 52, no. 1, pp. 106-114, Jan. 2004.
    [37] S. Chen, C. Chiang and C. I. G. Hsu, "Compact Four-Element MIMO Antenna System for 5G Laptops," in IEEE Access, vol. 7, pp. 186056-186064, 2019.
    [38] C. Sim, C. Chen, X. Y. Zhang, Y. Lee and C. Chiang, "Very Small-Size Uniplanar Printed Monopole Antenna for Dual-Band WLAN Laptop Computer Applications," in IEEE Transactions on Antennas and Propagation, vol. 65, no. 6, pp. 2916-2922, June 2017.
    [39] Y. Ge, K. P. Esselle and T. S. Bird, "E-shaped Patch Antennas for High-Speed Wireless Networks," in IEEE Transactions on Antennas and Propagation, vol. 52, no. 12, pp. 3213-3219, Dec. 2004.
    [40] Y. Pan and S. Zheng, "A Compact Quasi-Isotropic Shorted Patch Antenna," in IEEE Access, vol. 5, pp. 2771-2778, 2017.
    [41] T. Le et al., "A Novel Strain Sensor Based on 3D Printing Technology and 3D Antenna Design," 2015 IEEE 65th Electronic Components and Technology Conference (ECTC), 2015, pp. 981-986.
    [42] G. Kim and S. Kim, "Design and Analysis of Dual Polarized Broadband Microstrip Patch Antenna for 5G mmWave Antenna Module on FR4 Substrate," in IEEE Access, vol. 9, pp. 64306-64316, 2021.

    [43] K.-D. Hong, X. Zhang, L. Zhu and T. Yuan, "A High-Gain and Pattern-Reconfigurable Patch Antenna Under Operation of TM₂₀ and TM₂₁ Modes," in IEEE Open Journal of Antennas and Propagation, vol. 2, pp. 646-653, 2021.
    [44] N. Liu, M. Sun, L. Zhu, Z. Liu, L. Yang and L. Ji, "A Single-Layer Single-Fed Shorted-Patch Antenna With Broadside Circular Polarization by Using Nondegenerate TM0,1/2 and TM1,1/2 Modes," in IEEE Antennas and Wireless Propagation Letters, vol. 19, no. 6, pp. 939-943, June 2020.

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