Keywords
Antenna diversity, impedance matching, mutual coupling, noise figure
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.
Original Publication Citation
Morris, M. L., and M. A. Jensen. "Improved Network Analysis of Coupled Antenna Diversity Performance." Wireless Communications, IEEE Transactions on 4.4 (25): 1928-34
BYU ScholarsArchive Citation
Jensen, Michael A. and Morris, Matthew L., "Improved network analysis of coupled antenna diversity performance" (2005). Faculty Publications. 362.
https://scholarsarchive.byu.edu/facpub/362
Document Type
Peer-Reviewed Article
Publication Date
2005-07-01
Permanent URL
http://hdl.lib.byu.edu/1877/1065
Publisher
IEEE
Language
English
College
Ira A. Fulton College of Engineering and Technology
Department
Electrical and Computer Engineering
Copyright Status
© 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Copyright Use Information
http://lib.byu.edu/about/copyright/