new type of cable from MIT 比USB快10倍

andy2000a

At just the width of a human hair, a new type of cable from MIT and Raytheon is said to be ten times faster than USB.
researchers at MIT and Raytheon Technologies have worked to solve this problem, recently publishing a new paper that describes a new kind of cable—the width of a strand of hair—that can achieve rates up to ten times that of a USB.

In their newly-released paper, the researchers explain that the new cable can achieve data rates up to 105 Gb/s. The cable achieves these rates by dividing the 220–335 GHz band into three 35 GHz-wide channels and including two 5 GHz-wide guard bands.
The cable is made of a polymer, resulting in a conduit that is lighter and cheaper to manufacture than traditional copper cables. Their present cable comes in at a cross-sectional area of about 0.4 mm by 0.25 mm, comparable to a strand of hair.



科研人員成功開發出了一種全新的數據傳輸系統，將高頻矽晶片與細如髮絲的聚合物電纜配對，實現比USB快10倍的信息傳輸速度。該系統有朝一日可能會提高數據中心的能源效率，並減輕電子產品元件的負荷。

專家表示，雖然對通過長度超過一米的導管進行快速數據傳輸（超過每秒100千兆位）的需求日益增長，但目前主流的解決方案一直是“越來越笨重和昂貴的”銅線。

銅線的一種替代方案是光纜，不過這也有自己的問題。銅線使用的是電信號，而光纖使用的是光子。這使得光纖能夠快速傳輸數據，而且能量耗損小。但電腦晶片通常不太兼容光子這使得光纖電纜和電腦之間的互連成為一個挑戰。

上述做法是新線纜在尺寸優於銅管，其橫截面積是0.4毫米×0.25毫米，所以，它超級微小，就像一縷頭髮。