Bending and SAR analysis on UWB wearable MIMO antenna for on-arm WBAN applications

Shailesh Jayant; Garima Srivastava; Ravindra Purwar

doi:10.1515/freq-2020-0105

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Bending and SAR analysis on UWB wearable MIMO antenna for on-arm WBAN applications

Shailesh Jayant , Garima Srivastava und Ravindra Purwar

Veröffentlicht/Copyright: 1. März 2021

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Abstract

Here, a planar Ultra-Wideband (UWB) wearable Multiple Input Multiple Output (MIMO) antenna is designed for on-arm wearable Wireless Body Area Network (WBAN) applications. This antenna is designed on a 100% cotton cloth substrate. The two-port MIMO antenna has a dual spinning wheel shape like radiators with the partial ground and microstrip feedings. The two partial grounds are connected to a rectangular strip to have common ground. The complete surface area of the antenna is 40 × 70 mm². In comparison with recently published papers in the same research area, the bending and SAR analysis are also done to estimate the performance of this wearable antenna, which is the novelty of this research work. For entire UWB bandwidth, S–parameters, gain, efficiency, and diversity parameters (Channel Capacity Loss [CCL] and Envelope Correlation Coefficient [ECC]) and far-field simulations are done for all cases such as flat, bend, on body antenna, which demonstrates the appropriateness of the presented antenna to be operated to the human arm.

Keywords: multiple input multiple output (MIMO); specific absorption rate (SAR); textile antenna; ultra-wideband (UWB); wearable antenna; wireless body area network (WBAN)

Corresponding author: Garima Srivastava, Netaji Subhas University of Technology East Campus (Formerly AIACT &R), Geeta Colony, Delhi, 110031, India, E-mail: garima.shrivastav@gmail.com

Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2020-07-07

Accepted: 2021-02-13

Published Online: 2021-03-01

Published in Print: 2021-05-26

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https://doi.org/10.1515/freq-2020-0105

Schlagwörter für diesen Artikel

multiple input multiple output (MIMO); specific absorption rate (SAR); textile antenna; ultra-wideband (UWB); wearable antenna; wireless body area network (WBAN)