進階搜尋


   電子論文尚未授權公開,紙本請查館藏目錄
(※如查詢不到或館藏狀況顯示「閉架不公開」,表示該本論文不在書庫,無法取用。)
系統識別號 U0026-0508201011420100
論文名稱(中文) 可適用於筆記型電腦之無線辨識系統天線設計
論文名稱(英文) RFID Antenna for Laptop Application
校院名稱 成功大學
系所名稱(中) 電機工程學系碩博士班
系所名稱(英) Department of Electrical Engineering
學年度 98
學期 2
出版年 99
研究生(中文) 蔡奇芳
研究生(英文) Chi-Fang Tsai
學號 v9697104
學位類別 碩士
語文別 中文
論文頁數 57頁
口試委員 指導教授-李文熙
口試委員-黃正亮
口試委員-李英杰
口試委員-李俊德
口試委員-蘇哲儀
中文關鍵字 射頻辨識系統  長方形螺旋線圈天線  電磁模擬軟體  磁性材料 
英文關鍵字 RFID system  rectangular spiral coil antenna  HFSS  magnetic material 
學科別分類
中文摘要 射頻辨識系統是透過讀取系統端與標籤系統端之天線,利用電磁波耦合來彼此溝通。而讀取器天線在此扮演的角色則是負責接收解調由標籤系統端傳回之訊號,因此讀取器天線特性的好壞將直接影響整個射頻辨識系統接收的距離。本研究的主軸著重於設計一組應用於筆記型電腦之無線辨識系統讀取器天線,並以長方形螺旋線圈天線之設計搭配無線射頻辨識系統晶片,內藏於筆記型電腦的觸控板之一側。
本設計之無線辨識系統讀取器天線置於筆記型電腦內,做為智慧卡之讀取裝置,此類應用以短距離傳輸為主,本論文研究採用近場感應天線之天線類型,使用長方形螺旋線圈之電感性於近場產生磁場,以感應標籤系統端之智慧卡。
筆記型電腦中複雜的射頻訊號干擾與機構,將影響天線之輻射特性,本論文研究透過電磁模擬軟體,建立合理的環境模型,以模擬長方形螺旋線圈天線置放於筆記型電腦中之效應,並探討置入磁性材料後,改善金屬環境對天線特性之影響;本研究長方形螺旋線圈天線實作及量測與理論模擬結果相符,使其符合筆記型電腦無線辨識系統讀取器天線之應用。
英文摘要 Radio frequency identification (RFID) system communicates with each other by using electromagnetic wave in the air through the antenna of readers and tags. The reader antenna plays an important role of receiving and demodulating signals from the tag antenna. The performance of the reader antenna will directly affect the transmission distance. The research mainly focuses on the RFID antenna design for laptop application. The proposed antenna acting as an internal laptop antenna next to the touch pad is designed by using rectangular spiral coil antenna.
The proposed RFID antenna for small distance transmission worked as the reader antenna to identify the users’ smart card. The research is discussed by using near field coupling type antenna. The proposed rectangular spiral coil antenna with inductance produces a magnetic field in the near field to induce the tag antenna.
The complex RF signal interference and mechanism in the laptop seriously affects the radiation performance of the antenna. To simulate the effect of the rectangular spiral coil antenna in the laptop, we establish a reasonable environment modal in EM simulation software and discuss the improvement of the performance of the antenna in the metal environment by implementing the magnetic material. It is seen the agreement of the construction prototype and the measurement result matches the theory modal and the simulation result. The result shows the proposed RFID antenna is suitable for laptop application.
論文目次 中文摘要 I
英文摘要 II
誌 謝 III
總目錄 IV
表目錄 VI
圖目錄 VII
第一章 緒論 1
1-1 前言 1
1-2 研究目的 2
第二章 相關文獻回顧與整理 3
2-1 背景陳述 3
2-2 射頻辨識系統(RFID) 4
2-2-1 RFID 分類 5
2-2-2 RFID 工作頻率 7
2-2-3 RFID 之安全規範 9
2-3 天線理論 10
2-3-1 天線輻射理論 10
2-3-2 基本天線型式 11
2-3-3 天線性能的判定 13
2-3-4 近場系統天線設計 20
2-3-5 諧振器的Q值 25
2-4 RFID 天線架構 28
2-4-1 平面式射頻辨識系統天線架構 28
2-4-2 偶極天極架構之 RFID 天線 28
2-4-3 環形天線之架構 29
2-5 綜合討論 31
第三章 實驗方法及步驟 32
3-1 實驗概念 32
3-2 模擬工具與基材之實驗設備 32
3-3 RFID讀取器長方形螺旋線圈天線的設計步驟 33
3-4 特性分析 35
3-4-1 天線特性量測 35
3-4-2 磁場強度與範圍量測 35
第四章 結果與討論 37
4-1 內置筆記型電腦 RFID讀取器長方形螺旋線圈天線結果 37
4-1-1 長方形螺旋線圈天線規格與工作頻段的運用 37
4-1-2 長方形螺旋線圈天線設計 38
4-1-3 長方形螺旋線圈天線的結構 39
4-1-4 長方形螺旋線圈天線的線徑與線距效應 40
4-1-5 長方形螺旋線圈天線之圈數效應 41
4-2 週遭金屬對長方形螺旋線圈天線的影響 43
4-2-1 磁性材料對長方形螺旋線圈天線的影響 44
4-2-2 長方形螺旋線圈天線之磁場強度分布情形分析 46
4-3 長方形螺旋線圈天線之實作與量測 48
4-4 置於長方形螺旋線圈天線之磁性材料規格 49
4-5 實際量測結果與分析 52
4-5-1 實測長方形螺旋線圈天線置入磁性材料的結果與討論 52
第五章 結論 54
參考文獻 55
參考文獻 [1] P. R. Foster and R. A. Burberry, “Antenna Problems in RFID Systems,” RFID Technology (Ref. No. 1999/123), IEE Colloquium, pp. 3/1-3/5, 25 Oct. 1999.
[2] L. Ukkonen, M. Schaffrath, D.W. Engels, L. Sydanheimo, and M. Kivikoski, “Operability of Folded Microstrip Patch-Type Tag Antenna in the UHF RFID Bands Within 865-928 MHz,” Antennas Wirel. Propag. Lett., vol. 5, no. 1, pp.414 - 417, Dec. 2006.
[3] 黃玉婷, “RFID受金屬環境之影響及目前產品現況簡介,”工業材料雜誌 241期, p88-92, 96年1月.
[4] C.K.Harmon “Standardization and Commercialization of RFID ”,RFID Committee,25 Jan.2000.
[5] G. Marrocco, A. Fonte, and F. Bardati, “Evolutionary design of miniaturized meander-line antennas for RFID applications,” in Proc. IEEE Antennas and Propag. Soc. Int. Symp., vol. 2, pp. 362-365, 16-21 June 2002.
[6] Radio Frequency Identification(RFID)Technology Guide, RFID Characteristics.
[7] W. L. Stutzman and G. A. Thiele, Antenna Theory and Design, 2nd edition, John Wiley & Sons Inc. 1998.
[8] D. K. Cheng, Fundamentals of Engineering Electromagnetics” Prentice Hall, 1993.
[9] Simon R. Saunders, Antennas and Propagation for Wireless Communication Systems, Wiley, 1999.
[10] Constantine A. Balanis, “Antenna Theory Analysis and Design”, John Wiley & Sons, INC., 1982.
[11] 鄭同伯,「RFID EPC 無線射頻辨識完全剖析」,博碩文化股份有限公司,2004.
[12] V. G. Welsby, The Theory and Design of Inductance Coils, John Wiley and Sons, Inc., 1960.
[13] Frederick W. Grover, Inductance Calculations Working Formulas and Tables, Dover Publications, Inc., New York, NY., 1946.
[14] K. Fujimoto, A. Henderson, K. Hirasawa, and J. R. James, Small Antennas, John Wiley & Sons Inc., ISBN 0471 914134, 1987.
[15] James K. Hardy, High Frequency Circuit Design, Reston Publishing Company, Inc. Reston, Virginia, 1975.
[16] Keith Henry, Editor, Radio Engineering Handbook, McGraw-Hill Book Company, New York, NY., 1963.
[17] D. M. Pozar, Microwave Engineering, 2nd Ed., John Wiley & Sons, Inc., 1998.
[18] H. -W. Son and C. -S. Pyo, “Design of RFID tag antennas using an inductively coupled feed,” Electronics Letters, Volume 41, Issue 18, pp. 994 – 996, 1 Sept.2005.
[19] W. Choi, H. W. Son, C. Shin, J. -H. Bae, and G. Choi, “RFID tag antenna with a meandered dipole and inductively coupled feed,” in Proc. IEEE Antennas and Propag. Soc. Int. Symp., pp. 619 – 622, 9-14 July 2006.
[20] K.V.S. Rao, P.V. Nikitin, and S.F. Lam, “Antenna design for UHF RFID tags: a review and a practical application,” IEEE Transactions on Antenna and Propagation, Volume 53, Issue 12, pp. 3870 – 3876, Dec. 2005.
[21] Y. Feng, B. Braaten, and R. Nelson,“Analytical expressions for small loop antennas - with applicaton to EMC and RFID systems,” IEEE International Symposium on Electromagnetic Compatibility, Volume 1, pp. 63 - 68, 14-18 Aug. 2006.
[22] H.-K.Ryu and J.-M. Woo, “Size Reduction in UHF Band RFID Tag Antenna Based on Circular Loop Antenna,” International Conference on Applied Electromagnetics and Communications, pp. 1 - 4, 12-14 Oct. 2005.
[23] Ailian Cai, Xian Ming Qing, and Zhi Ning Chen, “HIGH FREQUENCY RFID SMART TABLE ANTENNA,” MICROWAVE AND OPTICAL TECHNOLOGY LETTERS / Vol. 49, No. 9, pp. 2074 – 2076, September 2007
[24] Chuwong Phongcharoenpanich, “Investigation of Antennas for RFID Reader,” NTC International Conference, pp 51 - 53, 5-6 March 2009.
論文全文使用權限
  • 同意授權校內瀏覽/列印電子全文服務,於2013-08-25起公開。


  • 如您有疑問,請聯絡圖書館
    聯絡電話:(06)2757575#65773
    聯絡E-mail:etds@email.ncku.edu.tw