Improved network analysis of coupled antenna diversity performance

Authors:
M. L. Morris;M. A. Jensen
Affiliations:
Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2005

Citing 0
Cited 2

Effects of mutual coupling and noise correlation on downlink coordinated beamforming with limited feedback

EURASIP Journal on Advances in Signal Processing - Multiuser MIMO Transmission with Limited Feedback, Cooperation, and Coordination
Noise correlation in compact diversity receivers

IEEE Transactions on Communications

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Abstract

This paper presents a new framework for the analysis of mutually coupled diversity antennas based on network theory. The network model incorporates the matching network between the antennas and front-end amplifiers and uses a realistic model for the amplifier noise. The resulting analysis includes the impact of the coupled-antenna radiation patterns and impedance characteristics in determining the branch signal-to-noise ratios (SNRs). Application of the formulation to coupled dipole antennas characterized using full-wave electromagnetic analysis illustrates that a matching network providing a minimum amplifier noise figure achieves significantly better diversity performance than one providing maximum power transfer.