Wideband Loop Antenna With Split-Ring Resonators for Wireless Medical Telemetry

Zhenzhen Jiang; Zhao Wang; Mark Leach; Eng Gee Lim; Jingchen Wang; Rui Pei; Yi Huang

doi:10.1109/LAWP.2019.2918501

Wideband Loop Antenna With Split-Ring Resonators for Wireless Medical Telemetry

Zhenzhen Jiang
, Zhao Wang^*
, Mark Leach
, Eng Gee Lim
, Jingchen Wang
, Rui Pei
, Yi Huang

^*Corresponding author for this work

University of Liverpool

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

This letter presents a wideband flexible loop antenna with split-ring resonators (SRRs) for use in wireless medical telemetry. This design covers the entire MedRadio band (401-406 MHz) and four Industrial, Scientific, and Medical (ISM) bands (433.1-434.8, 868.0-868.8, and 902.8-928.0 MHz and 2.4-2.48 GHz). The SRRs improve the loop antenna return loss and reduce the power absorbed inside the human body over the multiband frequency ranges; they also result in increased radiation efficiency, gain, and transmission coefficient. A human body model has been used to study and optimize the antenna performance in a realistic environment and shows a reduction in specific absorption rate when the SRRs are used. Measurements are conducted in a tissue-simulating liquid phantom and show a good agreement with the simulations. This novel antenna could be used for a range of implantable applications such as wireless data transmission and wireless power transfer.

Original language	English
Article number	8721699
Pages (from-to)	1415-1419
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	18
Issue number	7
DOIs	https://doi.org/10.1109/LAWP.2019.2918501
Publication status	Published - Jul 2019

Keywords

Biomedical applications
implantable antennas
split-ring resonators (SRRs)
wideband antennas

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10.1109/LAWP.2019.2918501

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title = "Wideband Loop Antenna With Split-Ring Resonators for Wireless Medical Telemetry",

abstract = "This letter presents a wideband flexible loop antenna with split-ring resonators (SRRs) for use in wireless medical telemetry. This design covers the entire MedRadio band (401-406 MHz) and four Industrial, Scientific, and Medical (ISM) bands (433.1-434.8, 868.0-868.8, and 902.8-928.0 MHz and 2.4-2.48 GHz). The SRRs improve the loop antenna return loss and reduce the power absorbed inside the human body over the multiband frequency ranges; they also result in increased radiation efficiency, gain, and transmission coefficient. A human body model has been used to study and optimize the antenna performance in a realistic environment and shows a reduction in specific absorption rate when the SRRs are used. Measurements are conducted in a tissue-simulating liquid phantom and show a good agreement with the simulations. This novel antenna could be used for a range of implantable applications such as wireless data transmission and wireless power transfer.",

keywords = "Biomedical applications, implantable antennas, split-ring resonators (SRRs), wideband antennas",

author = "Zhenzhen Jiang and Zhao Wang and Mark Leach and Lim, \{Eng Gee\} and Jingchen Wang and Rui Pei and Yi Huang",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.",

year = "2019",

month = jul,

doi = "10.1109/LAWP.2019.2918501",

language = "English",

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journal = "IEEE Antennas and Wireless Propagation Letters",

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AU - Jiang, Zhenzhen

AU - Wang, Zhao

AU - Leach, Mark

AU - Lim, Eng Gee

AU - Wang, Jingchen

AU - Pei, Rui

AU - Huang, Yi

PY - 2019/7

Y1 - 2019/7

N2 - This letter presents a wideband flexible loop antenna with split-ring resonators (SRRs) for use in wireless medical telemetry. This design covers the entire MedRadio band (401-406 MHz) and four Industrial, Scientific, and Medical (ISM) bands (433.1-434.8, 868.0-868.8, and 902.8-928.0 MHz and 2.4-2.48 GHz). The SRRs improve the loop antenna return loss and reduce the power absorbed inside the human body over the multiband frequency ranges; they also result in increased radiation efficiency, gain, and transmission coefficient. A human body model has been used to study and optimize the antenna performance in a realistic environment and shows a reduction in specific absorption rate when the SRRs are used. Measurements are conducted in a tissue-simulating liquid phantom and show a good agreement with the simulations. This novel antenna could be used for a range of implantable applications such as wireless data transmission and wireless power transfer.

AB - This letter presents a wideband flexible loop antenna with split-ring resonators (SRRs) for use in wireless medical telemetry. This design covers the entire MedRadio band (401-406 MHz) and four Industrial, Scientific, and Medical (ISM) bands (433.1-434.8, 868.0-868.8, and 902.8-928.0 MHz and 2.4-2.48 GHz). The SRRs improve the loop antenna return loss and reduce the power absorbed inside the human body over the multiband frequency ranges; they also result in increased radiation efficiency, gain, and transmission coefficient. A human body model has been used to study and optimize the antenna performance in a realistic environment and shows a reduction in specific absorption rate when the SRRs are used. Measurements are conducted in a tissue-simulating liquid phantom and show a good agreement with the simulations. This novel antenna could be used for a range of implantable applications such as wireless data transmission and wireless power transfer.

KW - Biomedical applications

KW - implantable antennas

KW - split-ring resonators (SRRs)

KW - wideband antennas

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 7

M1 - 8721699

ER -

Wideband Loop Antenna With Split-Ring Resonators for Wireless Medical Telemetry

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Keywords

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