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Proceedings Paper

High-Speed Analog Fiber Optic Links For Satellite Communication
Author(s): A. S. Daryoush; P. R. Herczfeld; R. R. Kunath
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Paper Abstract

Large aperture phased array antennas operating at millimeter wave frequencies are designed for space-based communications and imaging. Array elements are comprised of active transmit/receive (T/R) modules which are linked to the central processing unit through a high-speed fiberoptic network. This paper demonstrates optical control of active modules for satellite communication at 24GHz. An approach called T/R level data mixing, which utilizes fiberoptic transmission of data signal to individual T/R modules to be upconverted by an optically synchronized local oscillator, is demonstrated at 24GHz. In this study free-running HEMT oscillator, used as local oscillator at 24GHz, is synchronized using indirect subharmonic optical injection locking over a locking range of 14MHz. Results of data link performance over 500-1000MHz is also reported in terms of gain-bandwidth, linearity and third order intercept, sensitivity, and dynamic range.

Paper Details

Date Published: 28 November 1988
PDF: 6 pages
Proc. SPIE 0996, High Data Rate Atmospheric and Space Communications, (28 November 1988); doi: 10.1117/12.960172
Show Author Affiliations
A. S. Daryoush, Drexel Univesity (United States)
P. R. Herczfeld, Drexel Univesity (United States)
R. R. Kunath, NASA (United States)

Published in SPIE Proceedings Vol. 0996:
High Data Rate Atmospheric and Space Communications
Robert Hauptman, Editor(s)

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