Compact multiport antenna with isolated ports

Coetzee, Jacob & Liu, Yang (2008) Compact multiport antenna with isolated ports. Microwave and Optical Technology Letters, 50(1), pp. 229-232.

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The small element spacing of compact multiport arrays introduces strong mutual coupling between the antenna ports. Due to this coupling, the input impedance of the array changes when elements excitations are varied, and consequently, the array cannot be matched for an arbitrary excitation. Decoupling networks have in the past been used to provide an additional connection between antenna ports in order to cancel the coupling between elements. An alternative approach is to design the antenna so that each port does not excite a single element, but all elements simultaneously instead. The geometry of the antenna is optimized so that this direct excitation of elements counteracts the mutual coupling, thus yielding decoupled ports. This paper describes the design of such a 4-port antenna.

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5 citations in Scopus
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4 citations in Web of Science®

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256 since deposited on 29 Feb 2012
20 in the past twelve months

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ID Code: 48905
Item Type: Journal Article
Refereed: Yes
Keywords: Compact arrays, Mutual coupling, Adaptive arrays, Multiport antennas, MIMO antennas
DOI: 10.1002/mop.23038
ISSN: 0895-2477
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Electrical and Electronic Engineering not elsewhere classified (090699)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: © 2007 Wiley Periodicals, Inc.
Copyright Statement: The definitive version is available at
Deposited On: 29 Feb 2012 22:25
Last Modified: 22 Mar 2012 13:06

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