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一种新型小抛物面天线——格里高里偏心天线已经研制成功,并已在英国国际电信公司(BTI)投入试用,这在世界上是第一次把这种天线用于卫星通信服务。它将很快被用于为发射世界上第一颗横跨大西洋终端站间数字通信卫星服务,这颗卫星被命名为塞特斯琼·北美洲(SatStream North America)。现在BTI和泰勒格鲁泊·坎拿塔(Teleglobe Canada)正在建立这种业务。新型天线是由BTI和英国电信研究实验室共同研制的,天线的抛物面直径为5.5米。该天线设计的特点是折线点阵钢塔高出抛物面天线4米,能提供一较狭窄的波束,
A new small parabolic antenna - the Gregorian eccentric antenna - has been successfully developed and is in trial use at BTI, the first of its kind in the world to be used for satellite communications services. It will soon be used to launch the digital communications satellite between the world’s first transatlantic terminal, named SatStream North America. Now BTI and Teleglobe Canada are building such a business. The new antenna was developed by BTI and BT Research Lab. The antenna has a parabolic diameter of 5.5 meters. The antenna design is characterized by broken line lattice towers taller parabolic antenna 4 meters, can provide a narrower beam,