2.4GHz智慧天線傳輸應用

2.4GHz smart antenna transmission applications

林合聲(He-Shang Lin)

指導教授 ： 鄭立德

中原大學/工學院/電子工程研究所/碩士(2015年)

https://doi.org/10.6840/CYCU.2015.00075

摘要

隨著無線通訊需求的迅速發展，多媒體資訊交流的急遽增加，下一世代的無線通訊技術將必需滿足高速率、高容量、高品質與高彈性等運用需求，亟需藉助高效率的頻譜運用技術來支持，因此，無線通訊系統應特別考慮到「無線接取(Radio Access)能力」的提升，期能達到最佳的頻譜運用效率；在諸多的技術中，智慧型天線(Smart Antenna)技術即為一提升頻譜資源效率、系統容量和通訊品有效途徑，然而市面上設計的智慧型天線產品的成本較高，切換速度較慢，因此，我們運用了幾何矩陣天線設計，垂直極化與水平極化設計出1200種組合的天線場型，雖然只有8dBi的天線增益能量，卻有高達24dBi的抗干擾能力，而這樣的設計，透過天線場型切換、自動頻道選擇、流量控管機制下，將產品效能至少提升30%，360度的大覆蓋無死角的服務。由實驗結果，我們在大型游泳場館、大型辦公室跟宿舍環境下進行驗證，透過傳輸軟體監看傳輸率比較下，不論傳輸率、抗干擾力皆優於其他設計，可用於更讓使用者採納的設計。

關鍵字

頻譜運用技術 ； 天線場型切換 ； 抗干擾力 ； 覆蓋

並列摘要

With the rapid development of wireless communication demand, rapid increase in multimedia communication, the next generation of wireless communications technology necessary to meet the high-speed, high-capacity, high-quality and high elasticity of demand for the use of the urgent need to use the spectrum by means of high-efficiency technology supports, therefore, the wireless communication system should give special consideration to "wireless access (Radio Access) capability" promotion, hoping to achieve the best efficiency of spectrum use; in many technologies, the smart antenna (Smart Antenna) technology that for enhancing the efficiency of spectrum resources, system capacity and communications products effective way, however, the high cost of smart antenna design products available in the market, the switching speed is slow, therefore, we used the geometric matrix antenna design, vertical polarization and horizontal polarization design 1200 kinds of antenna pattern combinations, although only 8dBi antenna gain energy, and there are up to 24dBi anti-jamming capability, but such a design, through antenna pattern switching, automatic channel selection, under flow control mechanism, the performance of the product, At least a 30% increase, a large 360-degree coverage Hassle service. From the experimental results, we have a large swimming pool hall, a large office environment to authenticate with the next quarters, through the transfer software to monitor the transmission rate is relatively lower, not on the transmission rate, anti-interference ability are superior to other designs, can be used to design a user leaving adopted.

並列關鍵字

interference force ； Spectrum use of technology ； antenna pattern switching ； coverage

參考文獻

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