赫歇尔空间天文台HIFI仪器波段2的SIS飞行混频器

Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004. Pub Date : 2004-01-01 DOI:10.1109/ICIMW.2004.1422151

M. Justen, M. Schultz, T. Tils, R. Teipen, S. Glenz, P. Putz, C. Honingh, K. Jacobs

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引用次数: 7

摘要

我们介绍了最近组装的赫歇尔卫星天文台HIFI仪器2波段SIS混频器单元(MU)的飞行模型。设计、设备制造、大部分混频器硬件制造、空间鉴定和最终组装都在KOSMA完成。由于模块化设计，MU的不同部分的RF和if性能在最终组装之前分别进行测试。最新的测试结果表明，在2.8 K的工作温度下，噪声温度在带中心80 K到带上边缘220 K之间。混频器的中频纹波在4-8 GHz带宽范围内低于2 dB，包括提供非常高的EMI和ESD保护的偏置t。从性能、可靠性、及时交货和资源之间的权衡的角度，讨论了混合器的性能和设计。

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SIS flight mixers for band 2 of the HIFI instrument of the Herschel Space Observatory

We present the recently assembled flight models of the SIS mixer units (MU) for band 2 of the HIFI instrument for the Herschel satellite observatory. Design, device fabrication, most of the mixer hardware fabrication, space-qualification, and final assembly are all realized at KOSMA. Thanks to the modular design RF- and IF-performance of different parts of the MU are tested separately before final assembly. Latest test results show a noise temperature between 80 K in the band centre towards 220 K at the upper band edge at 2.8 K operating temperature. The mixer IF-ripple is below 2 dB over a 4-8 GHz bandwidth including the bias-T which provides a very high EMI and ESD protection. The mixer performance and design are discussed under the aspect of the careful trade off between performance, reliability, timely delivery, and resources.

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来源期刊

Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.

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