低成本網路分接雙插座結合極高速數位用戶迴路分波器之設計與實現

本論文之目地在於設計一個結合極高速用戶迴路分波器的新型網路分接雙插座，文中對新改良的極高速數位用戶迴路分波器,作了完整的弁鄐尷R，該網路分接雙插座同時實現低成本要求。在分波器的設計上，結合低通濾波電路與高通濾波電路的設計方法以減少體積並提高效能。同時，應用現代網路理論分別探討低通濾波電路與高通濾波電路的設計方法，討論了濾波器中相關網路參數的關係，最後，選用橢圓型濾波器作為低通濾波電路的原型以及契比雪夫濾波器作為高通濾波電路的原型。另外論文中也分析了鐵氧體磁性材料的主要性質，同時討論軟磁磁性材料的實際運用，為簡化設計流程，在不考量寄生效應的情況下，選用不同磁性材料組成的濾波電感器及濾波電容器等被動元件進行實作及特性上的比較，以決定較佳之設計組合。在實務上是以極高速數位用戶迴路數據卡，並使用動態測試環境，實際驗証分波器功能上的準確性，研究結果顯示此新設計的網路分接雙插座相較於傳統型網路分接雙插座能有效提昇傳輸效能並減少轉接口數，同時，它實現商業要求-小體積、方便性及低成本。

關鍵字

濾波器；數位用戶迴路；分波器

並列摘要

The purpose of this dissertation is to design a new-type network hybrid socket including a modified VDSL splitter, which is analyzed completely for its functions. This network hybrid socket is also designed for low cost requirement. This modified VDSL splitter combined low-pass filter with high-pass filter has been designed to reduce the size and promote its efficiency. Modern network theory is used to investigate the design methods of low-pass filter and high-pass filter in the splitter. Finally, the relationships of the network parameters have been evaluated to select elliptic-filter to be low-pass filter’s prototype and chebyshev-filter to be high-pass filter’s prototype in this modified VDSL splitter. Furthermore, the main nature of ferrite magnetic material has been analyzed in this paper, and also discussed the application of the soft magnet. In order to simplify the procedure of the design, one selected different magnetic material to make up strain passive components of the filters in the splitter without considering the parasitic effect. According to the evaluation and comparison of the characteristics in the passive components, a better combination of the splitter’s components has been determined. In practice, we select VDSL modem cards in the dynamic environment to verify the functional exactness for the modified splitter. As a result, comparing with traditional network hybrid socket, the new network hybrid socket can promote the efficiency of transmittal and reduce the count of the switching mouth. It also realizes the commercial requirements in small size, convenience and low cost.

並列關鍵字

Splitter ； Filter ； Digital Subscriber Line

參考文獻

[20] 森容二，LC濾波器的設計與製作，建興文化事業，2003年。

[1]L.P. Huelsman, “PC program for engineers. Analysis and Synthesis of Passive Filters,” IEEE Circuits and Device Magazine, Vol.19, July 2003, pp.3-5.

[2]C.A Corral, C.S Lindquist, “Selectivity of elliptic filters,” IEE Proceedings of Circuits, Devices and Systems, Vol.147, Issue3, June 2000, pp.189-195.

[4]D. Baez-Lopez, V. Jimenez-Fernandez, “Modified Chebyshev Filter Design,” IEEE 2000 Canadian Conference on Electrical and Computer Engineering, Vol.2, 7-10 March 2000, pp.642-646.

[10]M.D. Nava , C. Del-Toso, “A short Overview of the VDSL system Requirements, ” IEEE Communication Magazine, Vol.40, Issue.12, Dec 2002, pp.82-90.

國際替代計量

低成本網路分接雙插座結合極高速數位用戶迴路分波器之設計與實現

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