天線工程期末報告

1. 天線工程期末報告 論文研討: Kentaro Murata , Naoki Honma “Analysis of Maximum Channel Capacity for Linear Antennas Using Method of Moments “, Iwate University Graduate School of Engineering,4-3-5 Ueda, Morioka, 020-8551 ,Japan 報告人: 碩研電子一甲 MA030117 游又嘉 Southern Taiwan University Department of Electronic Engineering

2. 緒論 　　無線傳輸容量對於行動 通訊十分重要，而多天線技 術，一般稱之為MIMO,經由 分集技術、空間多工、波束 成形，可以幫助改善無線通 訊的傳輸效能。 Southern Taiwan University Department of Electronic Engineering

3. 定義通道基於MOM 2 Southern Taiwan University Department of Electronic Engineering

4. 本徵模分析 3 Southern Taiwan University Department of Electronic Engineering

5. 本徵模分析 4 Southern Taiwan University Department of Electronic Engineering

6. 本徵模分析 5 Southern Taiwan University Department of Electronic Engineering

7. MMT與SMT 6 Southern Taiwan University Department of Electronic Engineering

8. 現有本徵模數與天線長度關係 7 Southern Taiwan University Department of Electronic Engineering

9. 通道容量與天線長度關係 8 Southern Taiwan University Department of Electronic Engineering

10. 本徵模的轉型 9 Southern Taiwan University Department of Electronic Engineering

11. 理想匹配的傳輸功率 10 Southern Taiwan University Department of Electronic Engineering

12. 結論 　　本文中基於S參數使用動差法(MoM)計算信號通道 容量，結果顯示，延長天線長度可使多模組式傳輸 (MMT)增加信號通道容量，當長度超過1.1λ時，使用 單一傳輸模式(SMT),可讓通道容量增加並超過理想匹 配。最後，本文中的各種結果證明，最佳的天線激勵將 提供比傳統中心饋電偶極天線更棒的信號通道容量。 Southern Taiwan University Department of Electronic Engineering

13. 參考文獻 • L. J. Chu, “Physical Limitations of Omni Directional Antennas,” Journal of Applied Physics, Vol.19, pp.1163-1175, Dec. 1948. • M. D. Migliore, “On Electromagnetics andInformation Theory,” IEEE Trans. Antennas and Propagat., Vol.56, No.10, pp.3188-3200, Oct. 2008 Southern Taiwan University Department of Electronic Engineering

14. 心得 　　在製作PPT與搜尋資料的過程中，遇到了相當大的困難 在一開始，許多專有名詞是由英文組成，在資料查詢的過程 中遇到相當大的困難，問了通訊相關系所的同學也無法得到 解答，雖然做完整份報告，相信內容依舊錯誤百出，不過在 整個過程中，可以增加自我的資料蒐尋及英文閱讀能力，仍 然是一次相當不錯的經驗。 Southern Taiwan University Department of Electronic Engineering