Effects of phase noise from lasers and other sources on photonic rf phased arrays

Ronald T. Logan Jr.; Lute Maleki

doi:10.1117/12.177397

10 June 1994 Effects of phase noise from lasers and other sources on photonic rf phased arrays

Ronald T. Logan Jr., Lute Maleki

Proceedings Volume 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV; (1994) https://doi.org/10.1117/12.177397
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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.

Citation Download Citation

Ronald T. Logan Jr. and Lute Maleki "Effects of phase noise from lasers and other sources on photonic rf phased arrays", Proc. SPIE 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV, (10 June 1994); https://doi.org/10.1117/12.177397

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