A highly compact Fabry Perot cavity-based MIMO antenna with decorrelated fields

This work presents the design of a low profile Fabry-Perot cavity-based multiple-input-multiple-output antenna with low correlation coefficient. The fields of closely placed antenna elements are tilted by using a phase-gradient partially reflective surface (PRS), thereby decreasing the correlation c...

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Bibliographic Details
Published inScientific reports Vol. 12; no. 1; p. 14021
Main Authors Illahi, M. Umair, Khan, Muhammad U., Hussain, Rifaqat, Tahir, Farooq A.
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 18.08.2022
Nature Publishing Group
Nature Portfolio
Subjects
639/166
639/166/987
Antennas
Communication
Computer engineering
Correlation coefficient
Design
Electrical engineering
Humanities and Social Sciences
multidisciplinary
Performance evaluation
Propagation
Radiation
Science
Science (multidisciplinary)
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Summary:This work presents the design of a low profile Fabry-Perot cavity-based multiple-input-multiple-output antenna with low correlation coefficient. The fields of closely placed antenna elements are tilted by using a phase-gradient partially reflective surface (PRS), thereby decreasing the correlation coefficient. The PRS is designed in such a way that its reflection phase is complementary to that of the ground plane. The PRS decorrelates the fields of the two radiating elements when placed at a height of λ/ 10 above them resulting in a reduction of the correlation coefficient by almost 95% for an isotropic environment. This height is considerably less than λ/ 4, which has been reported previously.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-18050-w