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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/74710

    Title: 行動設備之輻射雜訊量測與分析
    Other Titles: Measurement and analysis of radiated spurious emission on mobile devices
    Authors: 楊智傑;Yang, Chih Chieh
    Contributors: 淡江大學電機工程學系碩士在職專班
    易志孝;Yih, Chi Hsiao
    Keywords: 電磁干擾;雜訊;輻射雜訊;EMI,noise;Radiated Spurious Emission
    Date: 2011
    Issue Date: 2011-12-28 19:22:07 (UTC+8)
    Abstract: 行動設備的普及為人們帶來許多的便利,同時也讓空中充滿了更多的信號與雜訊。當雜訊的能量大過於信號的能量時,會使我們的設備受到干擾而無法獲取正確的信號。
    The popularity of mobile devices has not only made people’s lives more convenient but also caused more signals and interferences crowded in the air. When the energy of undesired signals is stronger than that of desired signals, the mobile device experiences interference and can not function properly. In this thesis, we study the effects of radiated spurious emission (RSE) on mobile devices. To mitigate the interference resulted from RSE on mobile devices, we first adjust the output impedance of power amplifiers to reduce the conducted spurious emission power. Besides, we use the near field prober to find the noise source and employ absorber or reinforced grounding to alleviate the power of spurious emission. Our experimental results show the proposed method can effectively locate the source and reduce the power of RSE.
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Thesis

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