A mode-based technique for compact linear MIMO arrays
Refereed conference paper presented and published in conference proceedings


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AbstractIn this work, a practical technique for building compact linear antenna arrays based on orthogonal radiations is presented. This approach utilizes passive couplers to separate out different orthogonal eigenmodes of linear arrays with closely-spaced elements as individual radiation mechanisms. In this way, undesired effects due to mutual coupling and spatial correlations can be avoided. Consequently, multiple-input-multiple-output (MIMO) radio front-ends can be made very compact in size by simply using antenna arrays of closely-spaced (< 0.5λ) elements. An experimental three-element array module of 0.16λ inter-element spacing is fabricated and tested. Good isolation (> 16 dB) between any two of the three signal transmission/ reception ports is obtained, and thus, validating this mode-based technique for realizing compact MIMO terminals. © 2011 IEEE.
All Author(s) ListYeung L.K.
Name of Conference2011 IEEE MTT-S International Microwave Symposium, IMS 2011
Start Date of Conference05/06/2011
End Date of Conference10/06/2011
Place of ConferenceBaltimore, MD
Country/Region of ConferenceUnited States of America
Detailed descriptionorganized by IEEE,
Year2011
Month9
Day7
ISBN9781612847566
ISSN0149-645X
LanguagesEnglish-United Kingdom
KeywordsAntenna array feeds, antenna arrays, MIMO systems, mutual coupling

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