An ELC meta-resonator inspired wideband wearable MIMO antenna system for biotelemetry applications. Issue 8 (24th May 2022)

• Record Type: Journal Article
• Authors: Ghosh, Soumendu; Roy, Sourav; Chakraborty, Ujjal; Sarkhel, Abhishek
• Is Part Of: Journal of electromagnetic waves and applications. Volume 36:Issue 8(2022)
• Page Start: 1113
• Page End: 1129
• Publication Date: 2022-05-24
• Subjects: Wearable MIMO -- Metamaterial inspired antenna -- mutual coupling suppression -- biotelemetry; Electromagnetic waves -- Periodicals; Electromagnetic devices -- Periodicals; 621.3
• DOI: 10.1080/09205071.2021.2005697
• Languages: English
• ISSNs: 0920-5071

Abstract

Abstract : A compact wideband multiple-input multiple-output (MIMO) antenna for body-centric communication is presented in this article. Initially, an electric field-driven LC metamaterial resonator inspired monopole antenna is developed that exhibits 122.19 % (1.28–5.30 GHz) bandwidth covering 2.4 GHz WLAN and 3.5 GHz WiMAX application bands. Thereafter, the MIMO antenna is proposed, and a pair of meander line structure as a wideband decoupling network is introduced on the ground plane to reduce the inter-element coupling. The proposed antenna holds a reduced mutual coupling and low envelope correlation coefficient over the wideband. To explain the wideband antenna response and its decoupling mechanism, a circuit model analysis is incorporated. Moreover, the proposed antenna demonstrates a robust performance under complex bending and crumpling conditions with an acceptable specific absorption rate (SAR <1.6) during the on-body conditions. Besides, a high data rate link-margin analysis makes the antenna suitable for wireless biotelemetry.