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SAR reduction techniques for WBAN and mobile applications

  • Vijay Gokul Selva Rajan EMAIL logo , Kavitha Kaliappan and Suresh Kumar Natarajan
Published/Copyright: May 29, 2023
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Frequenz
From the journal Frequenz Volume 77 Issue 11-12

Abstract

In recent years there has been a substantial growth in the usage of wireless gadgets in various fields like mobile communication, health monitoring, warfare communications, etc. However, the performance of the antenna is evaluated by the parameters like gain, directivity and bandwidth, VSWR and is enhanced as a continuous process. But on the other side, Specific Absorption Rate (SAR) is a parameter that is likely to be watched out for the safety concern which should be as low as possible for any antenna to ensure the minimum risk to human health. Many researchers have contributed an enormous amount of work to the SAR reduction. From this perspective, this work proposes a brief survey on low SAR antennas. An optimal low SAR antenna needs a perfect lossless impedance matching over a lossy medium (human body) for the eradication of spurious surface waves. The deployment of SAR reduction strategies, outcomes of the design, and open-end research challenges with the relative results are addressed as a part of the survey. The core impulse of this work is to induct the antenna designers to get indulged in designing low SAR antenna with enhanced performance for several WBAN applications like health monitoring and many more.

Keywords: artificial magnetic conductor; defected ground plane; electronic band gap; meta structures; SAR reduction
Corresponding author: Vijay Gokul Selva Rajan, Department of Electronics and Communication Engineering, Velammal College of Engineering and Technology, Madurai, Tamil Nadu, India, E-mail:

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/freq-2022-0297).

Received: 2022-12-21
Accepted: 2023-04-21
Published Online: 2023-05-29
Published in Print: 2023-12-15

© 2023 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Review Article
  3. SAR reduction techniques for WBAN and mobile applications
  4. Research Articles
  5. Defected ground structure based compact UWB dielectric resonator antennas with enhanced bandwidth
  6. Performance analysis of a flexible wearable antenna with low SAR for biomedical application
  7. Compact hybrid EBG microstrip antenna for wearable applications
  8. Compact eight-shaped ISM-I band wearable antenna for wireless body area network applications
  9. A high-gain dual-beam folded transmit-reflect-array antenna based on phase-shifting surface
  10. High isolation frequency-reconfigurable UWB-MIMO antenna with on-demand WiMAX band elimination
  11. Performance analysis of mmWave/sub-terahertz communication link for 5G and B5G mobile networks
https://doi.org/10.1515/freq-2022-0297
Keywords for this article
artificial magnetic conductor; defected ground plane; electronic band gap; meta structures; SAR reduction

Articles in the same Issue

  1. Frontmatter
  2. Review Article
  3. SAR reduction techniques for WBAN and mobile applications
  4. Research Articles
  5. Defected ground structure based compact UWB dielectric resonator antennas with enhanced bandwidth
  6. Performance analysis of a flexible wearable antenna with low SAR for biomedical application
  7. Compact hybrid EBG microstrip antenna for wearable applications
  8. Compact eight-shaped ISM-I band wearable antenna for wireless body area network applications
  9. A high-gain dual-beam folded transmit-reflect-array antenna based on phase-shifting surface
  10. High isolation frequency-reconfigurable UWB-MIMO antenna with on-demand WiMAX band elimination
  11. Performance analysis of mmWave/sub-terahertz communication link for 5G and B5G mobile networks
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