Performance Investigations of a Quad-band Microstrip Antenna for Body Wearable Wireless Devices

Authors

  • Varshini Karthik Dept. of Biomedical Engineering SRM University, Chennai, Tamil Nadu - 603203, India
  • T. Rama Rao Dept. of Telecommunication Engineering SRM University, Chennai, Tamil Nadu - 603203, India

Keywords:

Microstrip antenna, quad-band, specific absorption rate, thermal effects, ultra wideband, WBAN, wearable wireless devices

Abstract

This research work proposes a microstripbased quad-band monopole antenna for body Wearable Wireless Devices (WWD) for Wireless Body Area Network (WBAN) applications. Ultra high frequency (UHF) and Ultra wide band (UWB) technology have been known for their efficiency to meet power, size and distance considerations for WBANs. The designed antenna resonates at four frequencies, 1.8, 2.4, 5.0 and 8.9 GHz covering licensed and license-free wireless technologies. The antenna design considers the electromagnetic (EM) effects due to the interaction of body tissues with the radio frequency (RF) waves, which are very different when compared to their interaction with free space. The performance of the antenna is investigated in terms of radiation efficiency, total gain, specific absorption rate (SAR), and thermal effects (short and long term). A simplified, human body tissue layer model is used for simulations utilizing EM computations. Simulated and experimental results are paralleled and are found to be in good agreement.

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Author Biographies

Varshini Karthik, Dept. of Biomedical Engineering SRM University, Chennai, Tamil Nadu - 603203, India

Varshini Karthik is presently working as an Assistant Professor, Department of Biomedical Engineering, SRM University, India. She received a Bachelor of Engineering degree in Electronics and Communication Engineering from the Bharathidasan University in 2002 and received her Master of Engineering degree in Medical Electronics from Anna University in 2009. Her main research interests are design and optimization of Body wearable wireless devices and their Bio electromagnetic effects.

T. Rama Rao, Dept. of Telecommunication Engineering SRM University, Chennai, Tamil Nadu - 603203, India

T. Rama Rao is a Professor of Telecommunication Engineering at SRM University, India, and has a long-standing research experience on radiowave propagation studies for wireless communications. In the past, he worked at Aalborg University, Denmark as a Research Professor in an EU funded project on cellular networks capacity enhancement, at Universidad Carlos III de Madrid, Spain, and at the University of Sydney, Australia, as a Visiting Professor. He is a member of IEEE, WWRF, IET, ACM, and IETE Fellow.

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Published

2021-10-21

How to Cite

[1]
V. . Karthik and T. R. . Rao, “Performance Investigations of a Quad-band Microstrip Antenna for Body Wearable Wireless Devices”, ACES Journal, vol. 36, no. 08, pp. 980–988, Oct. 2021.

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