New modal feed network for a compact monopole array with isolated ports

Coetzee, Jacob & Yu, Yantao (2008) New modal feed network for a compact monopole array with isolated ports. IEEE Transactions on Antennas and Propagation, 56(12), pp. 3872-3875.

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An element spacing of less than half a wavelength introduces strong mutual coupling between the ports of compact antenna arrays. The strong coupling causes significant system performance degradation. A decoupling network may compensate for the mutual coupling. Alternatively, port decoupling can be achieved using a modal feed network. In response to an input signal at one of the input ports, this feed network excites the antenna elements in accordance with one of the eigenvectors of the array scattering parameter matrix. In this paper, a novel 4-element monopole array is described. The feed network of the array is implemented as a planar ring-type circuit in stripline with four coupled line sections. The new configuration offers a significant reduction in size, resulting in a very compact array.

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12 citations in Scopus
12 citations in Web of Science®
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ID Code: 30768
Item Type: Journal Article
Refereed: Yes
Keywords: Adaptive arrays, Antenna array feeds, Antenna arrays, Mutual coupling
DOI: 10.1109/TAP.2008.2007399
ISSN: 0018-926X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Electrical and Electronic Engineering not elsewhere classified (090699)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2008 IEEE
Copyright Statement: This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible
Deposited On: 12 Feb 2010 12:46
Last Modified: 01 Mar 2012 02:13

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