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Design of fragment-type isolation structures for MIMO antennas
Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China.
Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
2014 (English)In: Progress In Electromagnetics Research C, ISSN 1937-8718, E-ISSN 1937-8718, Vol. 52, 71-82 p.Article in journal (Refereed) Published
Abstract [en]

Fragment structure should find its application in acquiring high isolation between multiple-input multiple-output (MIMO) antennas. By gridding a design space into fragment cells, a fragment-type isolation structure can be constructed by metalizing some of the fragment cells. For MIMO isolation design, cells to be metalized can be selected by optimization searching scheme with objectives such as isolation, return losses, and even radiation patterns of MIMO antennas. Due to the exibility of fragment-type isolation structure, fragment-type structure has potentials to yield isolation higher than canonical isolation structures. In this paper, multi-objective evolutionary algorithm based on decomposition combined with genetic operators (MOEA/D-GO) is applied to design fragment-type isolation structures for MIMO patch antennas and MIMO PIFAs. It is demonstrated that isolation can be improved to different extents by using fragment-type isolation design. Some technique aspects related to the fragment-type isolation design, such as effects of fragment cell size, design space, density of metal cells, and efficiency consideration, are further discussed.

Place, publisher, year, edition, pages
2014. Vol. 52, 71-82 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-22643Scopus ID: 2-s2.0-84904573635Local ID: STCOAI: oai:DiVA.org:miun-22643DiVA: diva2:748245
Note

Correspondence Address: Wang, G.; Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China; email: gwang01@ustc.edu.cn

Available from: 2014-09-18 Created: 2014-08-20 Last updated: 2017-03-06Bibliographically approved

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