The Effect of Mutual Coupling on a High Altitude Platform Diversity System Using Compact Antenna Arrays

International Journal of Antennas and Propagation. 2010;2010 DOI 10.1155/2010/492915

 

Journal Homepage

Journal Title: International Journal of Antennas and Propagation

ISSN: 1687-5869 (Print); 1687-5877 (Online)

Publisher: Hindawi Publishing Corporation

LCC Subject Category: Technology: Electrical engineering. Electronics. Nuclear engineering

Country of publisher: Egypt

Language of fulltext: English

Full-text formats available: PDF, HTML, ePUB, XML

 

AUTHORS

Tommy Hult (Department of Electrical and Information Technology, Lund University, 22100 Lund, Sweden)
Abbas Mohammed (Department of Signal Processing, School of Engineering, Blekinge Institute of Technology, 37225 Ronneby, Sweden)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 24 weeks

 

Abstract | Full Text

We analyze the destructive effects of mutual coupling and spatial correlation between the separate antenna elements on a combined diversity system consisting of multiple HAPs (High-Altitude Platforms) employing various compact MIMO (Multiple-Input Multiple-Output) antenna array configurations, in order to enhance the mutual information in HAP communication links. In addition, we assess the influence of the separation angle between HAPs on system performance, and determine the optimal separation angles that maximize the total mutual information of the system for various compact MIMO antennas. Simulation results show that although the mutual information is degraded by mutual coupling and spatial correlation, the proposed HAP diversity system still provides better performance compared to a nondiversity system for all tested scenarios.