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MIMO 天線期中報告

MIMO 天線期中報告. [1] Saou -Wen Su, Cheng- Tse Lee and Fa-Shian Chang , “Printed MIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications, ” IEEE Trans . on Antennas and Propagation ., vol. 60, no. 2, pp. 456-463, February 2012.

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MIMO 天線期中報告

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  1. MIMO天線期中報告 [1] Saou-Wen Su,Cheng-Tse Lee andFa-Shian Chang, “PrintedMIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications,” IEEE Trans. on Antennas and Propagation., vol. 60, no. 2, pp. 456-463, February 2012. [2]Wen-Shan Chen, Ke-Ming Lin, Fa-Shian Chang, “MIMO Antenna with Enhanced Isolation Elements for USB Dongle Applications,” Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC),2012., pp. 43-51, July 2012. 指導老師: 陳文山 教授 報告人： 碩研通訊一甲 MA233103 劉紘銘 Southern Taiwan Universityof Science and Technology

  2. 比較項目 1.天線尺寸 2.使用基板 3.天線型態 4.應用頻帶 5.探討有無Neutralization-Line 7.比較表格 6.心得

  3. 天線尺寸 1.PrintedMIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications • 天線整體尺寸:30 x 65 mm2 • 天線輻射主體尺寸: 8x 13.5 mm2

  4. 天線尺寸 2.MIMO Antenna with Enhanced Isolation Elements for USB Dongle Applications • 天線整體尺寸:15 x 55 mm2 • 天線輻射主體尺寸: 15 x 15 mm2

  5. 使用基板 1.PrintedMIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications • 使用基板: FR4 玻璃纖維板 • 厚度:1mm

  6. 使用基板 2.MIMO Antenna with Enhanced Isolation Elements for USB Dongle Applications • 使用基板: FR4 玻璃纖維板 • 厚度:1.6mm

  7. 天線型態 1.PrintedMIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications 天線型態: 本主輻射天線端分為左右用兩相同對稱式 Monopole天線為幾何結構,而正面採用一種元件使用中和技術 Neutralization-Line與輻射主體連接再一起

  8. 天線型態 2.MIMO Antenna with Enhanced Isolation Elements for USB Dongle Applications 天線型態: 本主輻射天線端為前面採用兩相同對稱式 PIFA 天線為幾何結構,而背面採用一種元件使用中和技術 Neutralization-Line,前端和後端採用直徑 0.8 mm 銅柱與兩端連接一起

  9. 應用頻帶 1.PrintedMIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications Measured Simulated 應用頻帶為: WLAN 2.4 ~ 2.484GHz (IEEE 802.11 b/g/n)

  10. 應用頻帶 2.MIMO Antenna with Enhanced Isolation Elements for USB Dongle Applications 應用頻帶為: WLAN 2.4 ~ 2.484GHz (IEEE 802.11 b/g/n)

  11. 探討有無Neutralization-Line 1.PrintedMIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications 有 Neutral Line :虛線的 S11 與 S22 有到 -10 dB以下且包含到 2.4~2.484 GHz 頻帶範圍而隔離機制 S21有到 -15dB 以下 無 Neutral Line :虛線的 S11 與 S22 稍微往 2.4 GHz 後移動,而隔離機制無法有最佳的隔離度

  12. 探討有無Neutralization-Line 2.MIMO Antenna with Enhanced Isolation Elements for USB Dongle Applications 有 Neutral Line :虛線的 S11 與 S22 有到 -10 dB 以下且包含到 2.4~2.484 GHz 頻帶範圍而隔離機制 S21 有到 -15dB 以下 無 Neutral Line :虛線的 S11 與 S22 往低頻移動,而隔離機制無法有最佳的隔離度

  13. 比較表格

  14. 心得 MIMO 技術能夠提高頻道容量，實現高數據速率傳輸，有效對抗無線訊號衰落的影響,且隔離度的好壞在於兩支天線的收發狀態會不會受到其他訊號干擾,而隔離度是相當重要的, References[1] 的 Monopole 為基本架構有較寬的頻寬,以中和技術來產生較好的隔離度,References[2] 的 PIFA 為基本架構有相當好的穩定性,以中和技術方式來減低戶耦性,兩者天線有尺寸小、製作簡單、低成本之特點。

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