首页> 外文会议>European Microwave Conference vol.3; 20041011-14; Amsterdam(NL) >Ramping up to the Square Kilometre Array: A 1000m~2 Aperture Array Prototype
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Ramping up to the Square Kilometre Array: A 1000m~2 Aperture Array Prototype

机译:爬升至平方千米阵列:1000m〜2孔径阵列原型

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For the first time, ASTRON demonstrated the capabilities of a 4m~2, dense phased array antennas for Radio Astronomy, under the Thousand Element Array project (THEA). Although it proved the principle, due to the limited collecting area of only 4m~2, a definite answer on the viability of the dense phased array principle for the SKA could not be given. Therefore a larger demonstrator has been defined, know as "Electronic Multi-Beam Radio Astronomy Concept"; EMBRACE. EMBRACE will be between 500 -1000 square metre phased array antenna in the band of 0.4 -1.5 GHz. It will have at least 2 in dependable steerable beams and with this size it can function as radio astronomy instrument comparable to a 25 m diameter dish. Furthermore the collecting area now represents a significant (~ 10%) of an individual SKA "station". This paper will present the astronomical measured results of the Thousand Element Array, as the precursor to the detailed plans for EMBRACE. For the realization of EMBRACE a European SKA Design Study Consortium has been formed and a proposal has been submitted to the European Community, under its Sixth Framework (FP6). Research program.
机译:在千元素阵列项目(THEA)下,ASTRON首次展示了用于无线电天文学的4m〜2密集相控阵天线的功能。尽管证明了该原理,但由于有限的采集面积只有4m〜2,因此无法给出SKA密集相控阵原理的可行性的确切答案。因此,已经定义了一个更大的演示器,称为“电子多波束射电天文学概念”;拥抱。 EMBRACE将位于0.4 -1.5 GHz频段内的500 -1000平方米相控阵天线之间。它将有至少2个可靠的可控波束,并且具有这种尺寸,它可以用作射电天文仪器,相当于直径25 m的碟形卫星。此外,收集面积现在占单个SKA“站”的很大一部分(〜10%)。本文将介绍千元素阵列的天文测量结果,作为EMBRACE详细计划的前身。为了实现EMBRACE,已经成立了欧洲SKA设计研究联盟,并根据其第六框架(FP6)向欧洲共同体提交了提案。研究计划。

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