| タイトル | THz Instrumentation for the Herschel Space Observatory's Heterodyne Instrument for Far Infrared |
| 著者（英） | Pearson, J. C.; Kawamura, J. H.; Tsang, R.; Leduc, H. G.; Bumble, B.; Schlecht, E. T.; Lin, R. H.; Pukala, D. M.; Mehdi, I.; Ferber, R. R.; Maiwald, F.; Stern, J. A.; Dengler, R. J.; Wells, M.; Gaier, T. C.; Luong, E. M.; Peralta, A .; Javadi, H. H.; Samoska, L. A.; Ward, J. S.; Hatch, W. A.; Gill, J. J.; Finamore, B. P.; Velebir, J. R.; Weinreb, S. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 2004-06-24 |
| 言語 | eng |
| 内容記述 | The Heterodyne Instrument for Far Infrared (HIFI) on ESA's Herschel Space Observatory utilizes a variety of novel RF components in its five SIS receiver channels covering 480-1250 GHz and two HEB receiver channels covering 1410-1910 GHz. The local oscillator unit will be passively cooled while the focal plane unit is cooled by superfluid helium and cold helium vapors. HIFI employs W-band GaAs amplifiers, InP HEMT low noise IF amplifiers, fixed tuned broadband planar diode multipliers, high power W-bapd Isolators, and novel material systems in the SIS mixers. The National Aeronautics and Space Administration through the Jet Propulsion Laboratory is managing the development of the highest frequency (1119-1250 GHz) SIS mixers, the local oscillators oscillators for the three highest frequency receivers as well as W-band power amplifiers, high power W-band isolators, varactor diode devices for all high frequency multipliers and InP HEMT components for all the receiver channels intermediate frequency amplifiers. The NASA developed components represent a significant advancement in the available performance. This paper presents an update of the performance and the current state of development. |
| NASA分類 | Spacecraft Instrumentation and Astrionics |
| 権利 | Copyright |
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