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Proceedings Paper

Effects of phase noise from lasers and other sources on photonic rf phased arrays
Author(s): Ronald T. Logan; Lute Maleki
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Paper Abstract

The beam pattern of a linear phased-array antenna system employing a photonic feed network is analyzed using a model for the individual feed element noise including both additive and multiplicative equivalent noise generators. It is shown that uncorrelated multiplicative noise power of the individual feeds is reduced by a factor of N in the output of an N-element linear array. However, the uncorrelated additive noise of the individual feed paths is not mitigated, and therefore will determine the minimum noise floor of a large phased-array antenna.

Paper Details

Date Published: 10 June 1994
PDF: 7 pages
Proc. SPIE 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV, (10 June 1994); doi: 10.1117/12.177397
Show Author Affiliations
Ronald T. Logan, Jet Propulsion Lab. (United States)
Lute Maleki, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 2155:
Optoelectronic Signal Processing for Phased-Array Antennas IV
Brian M. Hendrickson, Editor(s)

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