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。

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.

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