A four port flexible UWB MIMO antenna with enhanced isolation for wearable applications

Vikash Kumar Jhunjhunwala; Pramod Kumar; Arun P. Parameswaran; Pallavi R. Mane; Om Prakash Kumar; Tanweer Ali; Sameena Pathan; Shweta Vincent; Praveen Kumar

Results in Engineering (Dec 2024)

A four port flexible UWB MIMO antenna with enhanced isolation for wearable applications

Vikash Kumar Jhunjhunwala,
Pramod Kumar,
Arun P. Parameswaran,
Pallavi R. Mane,
Om Prakash Kumar,
Tanweer Ali,
Sameena Pathan,
Shweta Vincent,
Praveen Kumar

Affiliations

Vikash Kumar Jhunjhunwala: Department of Electrical and Electronics Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India
Pramod Kumar: Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India
Arun P. Parameswaran: Department of Electrical and Electronics Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India
Pallavi R. Mane: Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India; Corresponding author.
Om Prakash Kumar: Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India; Corresponding author.
Tanweer Ali: Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India; Corresponding author.
Sameena Pathan: Department of Information and Communication Technology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India
Shweta Vincent: Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India
Praveen Kumar: Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India

Journal volume & issue: Vol. 24
p. 103147

Abstract

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This article presents a four-port multiple-input-multiple-output (MIMO) flexible antenna design for Ultrawideband (UWB) application using Polydimethylsiloxanes substrate. The single UWB antenna structure consists of modified circular radiator with elliptical slot and partial ground plane. To achieve high isolation among antenna element, a Defective Ground Structure (DGS) is adopted to decouple the low frequency band. DGS comprises a centrally placed square shape slotted structure connected by horizontal and vertical lines, achieving isolation below −20 dB. The proposed antenna has a dimension of 56×41×1.6mm3(0.41λ×0.3λ×0.0117λ), bandwidth of 3.4–11.8 GHz (110.5 %) and 4.3 dBi peak gain. Simulation and measurement findings show that the antenna performs well under bending situations with different curvature radius. At 4 GHz and 8.1 GHz, W/kg specific absorption rate (SAR) for 1/10 g tissue is examined. A low value of SAR is obtained at both the resonating frequencies. Additionally, an analysis is conducted on the diversity parameters, and the antenna demonstrates comparatively good results having mean effective gain (MEG) ratio 9.99 dB, implying that it's appropriate for wearable MIMO applications.

Published in Results in Engineering

ISSN: 2590-1230 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology
Website: https://www.journals.elsevier.com/results-in-engineering

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