Integrating Compact Printed Antennas Onto Small Diversity/MIMO Terminals

The integration of compact printed multielement antenna (MEA) systems on small diversity and multiple input multiple output (MIMO) terminal devices operating in the 5.2 GHz industrial, scientific and medical (ISM) band is presented. The investigated MEA systems comprise up to six printed elements (i...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2008-07, Vol.56 (7), p.2067-2078
Main Authors: Karaboikis, M.P., Papamichael, V.C., Tsachtsiris, G.F., Soras, C.F., Makios, V.T.
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna diversity
antenna selection
Antennas
Antennas and propagation
Applied sciences
Arrays
Design optimization
Devices
Dipole antennas
diversity gain
Diversity methods
Exact sciences and technology
Fading
Guidelines
Indoor
Mathematical analysis
Medical
MIMO
monopole antennas
multiple input multiple output (MIMO) capacity
printed circuit antennas
Printed circuits
Radiocommunications
Receiving antennas
Studies
Telecommunications
Telecommunications and information theory
Terminals
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Summary:The integration of compact printed multielement antenna (MEA) systems on small diversity and multiple input multiple output (MIMO) terminal devices operating in the 5.2 GHz industrial, scientific and medical (ISM) band is presented. The investigated MEA systems comprise up to six printed elements (inverted F and Minkowski monopole antennas) and their performance is evaluated by means of the effective diversity gain (EDG) and the 1% outage MIMO capacity. The role of the propagation environment (both outdoor and indoor) on EDG is examined, proving that the uniform scenario is a good approximation to many real environments. The tradeoff study between system's performance and number of integrated antenna elements indicates that both diversity and MIMO performance saturate when placing more than five closely spaced elements. Even the least efficient 6-element system however, can be advantageously used as a reconfigurable 2-element array under the concept of receive antenna selection, since it provides significantly improved MIMO performance over a conventional 2-element fixed one. The paper concludes with a summary of useful guidelines for the MEA design optimization procedure that emanated from this study.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2008.924677