TY - JOUR
T1 - Wideband Loop Antenna With Split-Ring Resonators for Wireless Medical Telemetry
AU - Jiang, Zhenzhen
AU - Wang, Zhao
AU - Leach, Mark
AU - Lim, Eng Gee
AU - Wang, Jingchen
AU - Pei, Rui
AU - Huang, Yi
N1 - Publisher Copyright:
© 2019 IEEE.
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
UR - http://www.scopus.com/inward/record.url?scp=85068654744&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2019.2918501
DO - 10.1109/LAWP.2019.2918501
M3 - Article
AN - SCOPUS:85068654744
SN - 1536-1225
VL - 18
SP - 1415
EP - 1419
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 7
M1 - 8721699
ER -