Suppression of Mobile Phone Exposure by Using Compact Electromagnetic-Bandgap Array

Rupam Das, Sang Bock Cho, Hyoungsuk Yoo

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

In this paper, a mobile phone case incorporating electromagnetic band gap (EBG) material is studied to intercept electromagnetic waves from the phone and reduce the specific absorption rate (SAR). A loop antenna for the Personal Communications Service (PCS) 1900 MHz band is considered. In addition, three different mobile phone cases associating EBG structures with optimized positions are used to improve SAR reduction. A human head phantom, to replicate the specific anthropomorphic mannequin (SAM) model was used for measurements. From simulation and measurement it is found that placing an EBG structure in a phone case can improve antenna gain as well as a maximum SAR reduction of 24% were found. This study reveals future applications of EBG structures for SAR reduction in mobile phones.

Original languageEnglish
Title of host publicationISAP 2018 - 2018 International Symposium on Antennas and Propagation
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788957083048
StatePublished - 2019 Jan 25
Event2018 International Symposium on Antennas and Propagation, ISAP 2018 - Busan, Korea, Republic of
Duration: 2018 Oct 232018 Oct 26

Publication series

NameISAP 2018 - 2018 International Symposium on Antennas and Propagation

Conference

Conference2018 International Symposium on Antennas and Propagation, ISAP 2018
CountryKorea, Republic of
CityBusan
Period18/10/2318/10/26

Fingerprint

Mobile phones
Energy gap
retarding
electromagnetism
Loop antennas
Personal communication systems
loop antennas
antenna gain
Electromagnetic waves
Antennas
electromagnetic radiation
communication
simulation

Keywords

  • Electromagnetic exposure
  • electromagnetic band gap
  • gain
  • phone antenna
  • specific absorption rate

Cite this

Das, R., Cho, S. B., & Yoo, H. (2019). Suppression of Mobile Phone Exposure by Using Compact Electromagnetic-Bandgap Array. In ISAP 2018 - 2018 International Symposium on Antennas and Propagation [8627715] (ISAP 2018 - 2018 International Symposium on Antennas and Propagation). Institute of Electrical and Electronics Engineers Inc..
Das, Rupam ; Cho, Sang Bock ; Yoo, Hyoungsuk. / Suppression of Mobile Phone Exposure by Using Compact Electromagnetic-Bandgap Array. ISAP 2018 - 2018 International Symposium on Antennas and Propagation. Institute of Electrical and Electronics Engineers Inc., 2019. (ISAP 2018 - 2018 International Symposium on Antennas and Propagation).
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title = "Suppression of Mobile Phone Exposure by Using Compact Electromagnetic-Bandgap Array",
abstract = "In this paper, a mobile phone case incorporating electromagnetic band gap (EBG) material is studied to intercept electromagnetic waves from the phone and reduce the specific absorption rate (SAR). A loop antenna for the Personal Communications Service (PCS) 1900 MHz band is considered. In addition, three different mobile phone cases associating EBG structures with optimized positions are used to improve SAR reduction. A human head phantom, to replicate the specific anthropomorphic mannequin (SAM) model was used for measurements. From simulation and measurement it is found that placing an EBG structure in a phone case can improve antenna gain as well as a maximum SAR reduction of 24{\%} were found. This study reveals future applications of EBG structures for SAR reduction in mobile phones.",
keywords = "Electromagnetic exposure, electromagnetic band gap, gain, phone antenna, specific absorption rate",
author = "Rupam Das and Cho, {Sang Bock} and Hyoungsuk Yoo",
year = "2019",
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language = "English",
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Das, R, Cho, SB & Yoo, H 2019, Suppression of Mobile Phone Exposure by Using Compact Electromagnetic-Bandgap Array. in ISAP 2018 - 2018 International Symposium on Antennas and Propagation., 8627715, ISAP 2018 - 2018 International Symposium on Antennas and Propagation, Institute of Electrical and Electronics Engineers Inc., 2018 International Symposium on Antennas and Propagation, ISAP 2018, Busan, Korea, Republic of, 18/10/23.

Suppression of Mobile Phone Exposure by Using Compact Electromagnetic-Bandgap Array. / Das, Rupam; Cho, Sang Bock; Yoo, Hyoungsuk.

ISAP 2018 - 2018 International Symposium on Antennas and Propagation. Institute of Electrical and Electronics Engineers Inc., 2019. 8627715 (ISAP 2018 - 2018 International Symposium on Antennas and Propagation).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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T1 - Suppression of Mobile Phone Exposure by Using Compact Electromagnetic-Bandgap Array

AU - Das, Rupam

AU - Cho, Sang Bock

AU - Yoo, Hyoungsuk

PY - 2019/1/25

Y1 - 2019/1/25

N2 - In this paper, a mobile phone case incorporating electromagnetic band gap (EBG) material is studied to intercept electromagnetic waves from the phone and reduce the specific absorption rate (SAR). A loop antenna for the Personal Communications Service (PCS) 1900 MHz band is considered. In addition, three different mobile phone cases associating EBG structures with optimized positions are used to improve SAR reduction. A human head phantom, to replicate the specific anthropomorphic mannequin (SAM) model was used for measurements. From simulation and measurement it is found that placing an EBG structure in a phone case can improve antenna gain as well as a maximum SAR reduction of 24% were found. This study reveals future applications of EBG structures for SAR reduction in mobile phones.

AB - In this paper, a mobile phone case incorporating electromagnetic band gap (EBG) material is studied to intercept electromagnetic waves from the phone and reduce the specific absorption rate (SAR). A loop antenna for the Personal Communications Service (PCS) 1900 MHz band is considered. In addition, three different mobile phone cases associating EBG structures with optimized positions are used to improve SAR reduction. A human head phantom, to replicate the specific anthropomorphic mannequin (SAM) model was used for measurements. From simulation and measurement it is found that placing an EBG structure in a phone case can improve antenna gain as well as a maximum SAR reduction of 24% were found. This study reveals future applications of EBG structures for SAR reduction in mobile phones.

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KW - gain

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BT - ISAP 2018 - 2018 International Symposium on Antennas and Propagation

PB - Institute of Electrical and Electronics Engineers Inc.

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Das R, Cho SB, Yoo H. Suppression of Mobile Phone Exposure by Using Compact Electromagnetic-Bandgap Array. In ISAP 2018 - 2018 International Symposium on Antennas and Propagation. Institute of Electrical and Electronics Engineers Inc. 2019. 8627715. (ISAP 2018 - 2018 International Symposium on Antennas and Propagation).