Circular polarized two-element textile antenna with high isolation and polarization diversity for wearable applications. Issue 3 (14th April 2023)

• Record Type: Journal Article
• Authors: Kumar, Anubhav; De, Asok; Jain, R. K.
• Is Part Of: International journal of microwave and wireless technologies. Volume 15:Issue 3(2023)
• Page Start: 493
• Page End: 501
• Publication Date: 2023-04-14
• Subjects: 5 G communications -- circularly polarized antenna -- multi-input and multi-output (MIMO) antenna -- wearable application; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078722000332
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract: 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.