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International Journal of Antennas and Propagation
Volume 2011, Article ID 438478, 12 pages
Research Article

The Noise Performance of a Multiple-Input-Port and Multiple-Output-Port Low-Noise Amplifier Connected to an Array of Coupled Antennas

Excem, 12 Chemin des Hauts de Clairefontaine, 78580 Maule, France

Received 19 May 2011; Revised 17 July 2011; Accepted 18 July 2011

Academic Editor: Hon Tat Hui

Copyright © 2011 Frédéric Broydé and Evelyne Clavelier. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We address the noise characterization of a multiple-input-port and multiple-output-port (MIPMOP) device receiving signals from an array of antennas. A definition of the noise figures and natural noise figures of a MIPMOP device is provided, and the resulting properties are detailed in the impedance and admittance representations. We compute the natural noise figures of a low-noise MIPMOP amplifier comprising a MIMO series-series feedback amplifier (MIMO-SSFA), designed for a wireless receiver front-end.