Planck低频仪器70 GHz前端与后端模块的设计、开发与验证
天体物理仪器与方法
2010-01-27 v1
摘要
为欧洲空间局Planck任务低频仪器构建并测试了70 GHz辐射计前端和后端模块。描述了工作原理和机械结构的设计细节，以及单元的关键InP MMIC低噪声放大器和移相器。这些单元在专门设计的低温真空腔中进行了测试，该腔能够产生Planck辐射计所需的工作条件，具体为：前端模块物理温度20 K，后端模块300 K，参考信号源4 K。讨论了低噪声放大器和移相器、前端和后端模块的测试结果，以及两个模块的组合结果。在70 GHz频率下，前端和后端的系统噪声温度为28 K；有效带宽为16 GHz，1/f频谱拐点频率为38 mHz。测试结果表明在70 GHz频率下具有最先进的性能，并满足Planck的性能要求。
引用
@article{arxiv.1001.4661,
title = {Design, development, and verification of the Planck Low Frequency Instrument 70 GHz Front-End and Back-End Modules},
author = {J. Varis and N. J. Hughes and M. Laaninen and V. -H. Kilpia and P. Jukkala and J. Tuovinen and S. Ovaska and P. Sjoman and P. Kangaslahti and T. Gaier and R. Hoyland and P. Meinhold and A. Mennella and M. Bersanelli and R. C. Butler and F. Cuttaia and E. Franceschi and R. Leonardi and P. Leutenegger and M. Malaspina and N. Mandolesi and M. Miccolis and T. Poutanen and H. Kurki-Suonio and M. Sandri and L. Stringhetti and L. Terenzi and M. Tomasi and L. Valenziano},
journal= {arXiv preprint arXiv:1001.4661},
year = {2010}
}
备注
16 pages, 15 figures. This paper is part of of the prelaunch status Planck LFI papers published on JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/jinst