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A smart mobile handset plastic case with integrated split ring resonators to reduce SAR

Hengyi Zhou, Arpan Pal, Amit Mehta Orcid Logo, Dariush Mirshekar-Syahkal

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, Pages: 1255 - 1256

Swansea University Author: Amit Mehta Orcid Logo

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DOI (Published version): 10.1109/APUSNCURSINRSM.2017.8072670

Abstract

Majority of mobile phones use GSM band (900 and 1800 GHz), GPS band (1.5 GHz) and WiFi band (2.4 GHz). However, most modern mobile handsets can also communicate at another WiFi band which is the 5 GHz band. A plastic smart case with three integrated Split Ring Resonators (SRR) is proposed to reduce...

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Published in: 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
ISSN: 1947-1491
Published: San Diego, CA, USA 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa39579
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first_indexed 2018-04-27T14:06:55Z
last_indexed 2018-09-07T12:52:35Z
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spelling 2018-09-07T10:20:05.3070443 v2 39579 2018-04-26 A smart mobile handset plastic case with integrated split ring resonators to reduce SAR 8a1e5679707cf437cbfd17b72514b8a5 0000-0001-8073-2436 Amit Mehta Amit Mehta true false 2018-04-26 EEEG Majority of mobile phones use GSM band (900 and 1800 GHz), GPS band (1.5 GHz) and WiFi band (2.4 GHz). However, most modern mobile handsets can also communicate at another WiFi band which is the 5 GHz band. A plastic smart case with three integrated Split Ring Resonators (SRR) is proposed to reduce SAR (Specific Absorption Rate) of a mobile handset at 5 GHz by mounting this case onto the phone. The radiated EM (Electro-Magnetic) field from the handset antenna interacts with the SRR layer and re-radiates into the far-field. SRR layer directs the radiation away from the handset screen and hence it reduces the human head exposure to the EM field during a call. It is observed that the smart case can reduce the 10 g SAR from 2.49 W/kg to 1.78 W/kg (≈30% reduction) to comply with the SAR limit guideline. Conference Paper/Proceeding/Abstract 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting 1255 1256 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting San Diego, CA, USA 1947-1491 19 10 2017 2017-10-19 10.1109/APUSNCURSINRSM.2017.8072670 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University 2018-09-07T10:20:05.3070443 2018-04-26T14:35:55.8771818 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Hengyi Zhou 1 Arpan Pal 2 Amit Mehta 0000-0001-8073-2436 3 Dariush Mirshekar-Syahkal 4
title A smart mobile handset plastic case with integrated split ring resonators to reduce SAR
spellingShingle A smart mobile handset plastic case with integrated split ring resonators to reduce SAR
Amit Mehta
title_short A smart mobile handset plastic case with integrated split ring resonators to reduce SAR
title_full A smart mobile handset plastic case with integrated split ring resonators to reduce SAR
title_fullStr A smart mobile handset plastic case with integrated split ring resonators to reduce SAR
title_full_unstemmed A smart mobile handset plastic case with integrated split ring resonators to reduce SAR
title_sort A smart mobile handset plastic case with integrated split ring resonators to reduce SAR
author_id_str_mv 8a1e5679707cf437cbfd17b72514b8a5
author_id_fullname_str_mv 8a1e5679707cf437cbfd17b72514b8a5_***_Amit Mehta
author Amit Mehta
author2 Hengyi Zhou
Arpan Pal
Amit Mehta
Dariush Mirshekar-Syahkal
format Conference Paper/Proceeding/Abstract
container_title 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
container_start_page 1255
publishDate 2017
institution Swansea University
issn 1947-1491
doi_str_mv 10.1109/APUSNCURSINRSM.2017.8072670
publisher 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
document_store_str 0
active_str 0
description Majority of mobile phones use GSM band (900 and 1800 GHz), GPS band (1.5 GHz) and WiFi band (2.4 GHz). However, most modern mobile handsets can also communicate at another WiFi band which is the 5 GHz band. A plastic smart case with three integrated Split Ring Resonators (SRR) is proposed to reduce SAR (Specific Absorption Rate) of a mobile handset at 5 GHz by mounting this case onto the phone. The radiated EM (Electro-Magnetic) field from the handset antenna interacts with the SRR layer and re-radiates into the far-field. SRR layer directs the radiation away from the handset screen and hence it reduces the human head exposure to the EM field during a call. It is observed that the smart case can reduce the 10 g SAR from 2.49 W/kg to 1.78 W/kg (≈30% reduction) to comply with the SAR limit guideline.
published_date 2017-10-19T03:50:17Z
_version_ 1763752455742423040
score 11.016258

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