Journal
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES
Volume 15, Issue 3, Pages 493-501Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1759078722000332
Keywords
5 G communications; circularly polarized antenna; multi-input and multi-output (MIMO) antenna; wearable application
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This study presents a two-element textile antenna with high isolation and polarization diversity, suitable for 5G communications, wearable technology, and biomedical cancer detection applications. The use of flexible material and an orthogonally placed microstrip-feed radiator antenna enables polarization diversity, while high isolation and low correlation are achieved through a defected ground. The antenna demonstrates circular polarization and performs well in terms of impedance bandwidth, isolation, envelope correlation coefficient, and channel capacity loss.
A two-element textile antenna with high isolation and polarization diversity is presented for 5 G communications, wearable technology and biomedical cancer detection applications. The flexible material is used with an orthogonally placed microstrip-feed radiator antenna responsible for polarization diversity. High isolation and low correlation are achieved between antenna elements with defected ground-based on diagonal and open-stubs, which perturbs the surface current and facilitates the achievement of circular polarization. The 10 dB impedance bandwidth (|S-11|) of a two-element antenna varies from 3.3 to 4.3 GHz with more than 24 dB isolation (|S-21|). The envelope correlation coefficient (ECC) and channel capacity loss (CCL) of multi-input and multi-output (MIMO) antenna parameters are less than 0.2 and 0.35 bits/s/Hz respectively, which validates the diversity performance of the antenna.
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