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Title: Microstrip decoupling networks for low-order multiport arrays with reduced element spacing
Authors: Chua, P.T.
Coetzee, J.C. 
Keywords: Decoupling network
Kuroda's identities
Mutual coupling
Superdirective arrays
Issue Date: 20-Sep-2005
Citation: Chua, P.T., Coetzee, J.C. (2005-09-20). Microstrip decoupling networks for low-order multiport arrays with reduced element spacing. Microwave and Optical Technology Letters 46 (6) : 592-597. ScholarBank@NUS Repository.
Abstract: An array of monopole elements with reduced element spacing of λ/20 to λ/6 is considered for application in digital beam-forming and direction-finding. The small element spacing introduces strong mutual coupling between the array elements. This paper proposes that decoupling can be achieved analytically for arrays with three elements and describes Kuroda's identities in order to realize the lumped elements of the derived decoupling network. Design procedures and equations are proposed. The experimental results are presented. The decoupled array has a bandwidth of 1% and a superdirective radiation pattern. © 2005 Wiley Periodicals, Inc.
Source Title: Microwave and Optical Technology Letters
ISSN: 08952477
DOI: 10.1002/mop.21060
Appears in Collections:Staff Publications

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