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Proceedings Paper

IF amplifier stability for the heterodyne instrument for FIRST (HIFI)
Author(s): Michael D. Seiffert; Juan Daniel Gallego-Puyol; Isaac Lopez Fernandez; Nick D. Whyborn; John C. Pearson
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Paper Abstract

The Heterodyne Instrument for FIRST (HIFI) is a heterodyne receiver system which has an intermediate frequency (IF) amplifier that will likely exhibit 1/f-type gain fluctuations. Although the level of fluctuation is very small, wideband spectral observations require exceptional stability. A methodology for measuring 1/f fluctuations is described along with measurements of two amplifiers. Comparisons are made with previous 1/f measurements of HEMT amplifiers. The implications for HIFI are described.

Paper Details

Date Published: 28 July 2000
PDF: 9 pages
Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); doi: 10.1117/12.393986
Show Author Affiliations
Michael D. Seiffert, Jet Propulsion Lab. (United States)
Juan Daniel Gallego-Puyol, Ctr. Astronomico de Yebes (Spain)
Isaac Lopez Fernandez, Ctr. Astronomico de Yebes (Spain)
Nick D. Whyborn, Space Research Organization (Netherlands)
John C. Pearson, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 4013:
UV, Optical, and IR Space Telescopes and Instruments
James B. Breckinridge; Peter Jakobsen, Editor(s)

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