射电天文学l波段相控阵馈电RFoF实现概述

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS) Pub Date : 2017-08-01 DOI:10.23919/URSIGASS.2017.8105423

R. Beresford, W. Cheng, G. Hampson, J. Bunton, A. Brown, M. Leach, R. Shaw, P. Roberts, J. Tuthill, C. Cantrall, M. Brothers, R. Forsyth, J. Kanapathippillai, D. Kiraly, S. Mackay

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引用次数: 2

摘要

澳大利亚平方公里探路者ASKAP设计增强(ADE)是基于分布式天线系统(DAS)的第二代架构，具有从平面相控阵馈电(PAF)到中央站点数字信号处理(DSP)的光纤无线传输(RFoF)。采用36 × 12m反射天线，每个PAF有188个单元，有6840个带有信号和转换(SAC)路径的端口。对于包含数千个元件的相控阵系统来说，低成本的实现是关键。实现和组件的选择对于提供可行的项目交付至关重要;平衡组件可用性，射频性能，功耗，维护和整个生命周期方面。在本文中，我们提到了使用的离散组件，基本组件性能和基准端到端顺应性测量。

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Radio astronomy L-band phased array feed RFoF implementation overview

The Australian Square Kilometre Pathfinder ASKAP Design Enhancement (ADE) is the second generation architecture based on a distributed antenna system (DAS) with radio over fiber transmission (RFoF) from planar phased array feed (PAF) to the central site digital signal processing (DSP). With 36 × 12m reflector antennas and 188 elements per PAF, there are 6840 ports with signal and conversion (SAC) paths. Low cost implementation is key for phased array systems comprising thousands of elements. The implementation and component choices are critical to provide a viable project delivery; balancing component availability, RF performance, power consumption, maintenance and whole of life aspects. In this paper we mention discrete components used, basic subassembly performance and fiducial end to end compliance measurements.

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来源期刊

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)

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