TY - GEN
T1 - Radiation efficiency of planar implantable antennas at ISM band
AU - Tofighi, Mohammad Reza
AU - Huang, Shi Min
PY - 2014
Y1 - 2014
N2 - Most attentions regarding the performance of implantable antennas have been paid to the reflection coefficient (S11 with respect to 50 Ω), bandwidth, and far-field radiation pattern, while little effort has been dedicated to investigate the radiation efficiency during the implant design process. Analysis of two slot-type (annular and meandered) and two strip-type (ring and meandered PIFA) antennas embedded in muscle is presented in this paper at 2.4 GHz ISM band. It reveals that the slot types have superior performance in terms of their radiation efficiency. Also, the radiation efficiency is improved by operating away from the resonance, mostly where the admittance is inductive. The radiation efficiency may vary over an order of magnitude or more depending on the choice of the antenna and its resonance point, a fact that deserves further attention.
AB - Most attentions regarding the performance of implantable antennas have been paid to the reflection coefficient (S11 with respect to 50 Ω), bandwidth, and far-field radiation pattern, while little effort has been dedicated to investigate the radiation efficiency during the implant design process. Analysis of two slot-type (annular and meandered) and two strip-type (ring and meandered PIFA) antennas embedded in muscle is presented in this paper at 2.4 GHz ISM band. It reveals that the slot types have superior performance in terms of their radiation efficiency. Also, the radiation efficiency is improved by operating away from the resonance, mostly where the admittance is inductive. The radiation efficiency may vary over an order of magnitude or more depending on the choice of the antenna and its resonance point, a fact that deserves further attention.
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U2 - 10.1109/BioWireleSS.2014.6827724
DO - 10.1109/BioWireleSS.2014.6827724
M3 - Conference contribution
AN - SCOPUS:84903954459
SN - 9781479923168
T3 - BioWireleSS 2014 - Proceedings: 2014 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems
SP - 43
EP - 45
BT - BioWireleSS 2014 - Proceedings
PB - IEEE Computer Society
T2 - 2014 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2014
Y2 - 19 January 2014 through 23 January 2014
ER -