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

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Author(s): Tommy Hult, Abbas Mohammed
Title: The Effect of Mutual Coupling on a High Altitude Platform Diversity System Using Compact Antenna Arrays
Journal: International Journal of Antennas and Propagation
Year: 2010
Volume: 2010
ISSN: 1687-5869
Publisher: Hindawi Publishing Corporation
URI/DOI: 10.1155/2010/492915
ISI number: 000284948800001
Other identifiers: Article ID 492915
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Electrical Engineering (Sektionen för ingenjörsvetenskap - Avd. för elektroteknik)
School of Engineering S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/ing/
Authors e-mail: thu@bth.se, amo@bth.se
Language: English
Abstract: 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.
Subject: Telecommunications\General
Keywords: High Altitude Platforms, HAPs, Mutual Coupling, Compact MIMO Antennas
Note: Open Access Journal
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