Application of Fundamental In-Body Radiation Limitations to Practical Design of Antennas for Implantable Bioelectronics - Université de Rennes Accéder directement au contenu
Communication Dans Un Congrès Année : 2020

Application of Fundamental In-Body Radiation Limitations to Practical Design of Antennas for Implantable Bioelectronics

Résumé

Fundamental in-body limitations on achievable radiation efficiency could provide decision-making assistance to engineers working on antennas for implantable bioelectronics. In this study, proof-of-concept conformal microstrip antennas are proposed based on these theoretical foundations. In particular, maximizing the effective aperture and loading the antenna with materials having the permittivity higher than that of surrounding tissues is a promising solution for increasing the radiation efficiency. The operating frequencies are tuned to operate within the optimal range for deep-body implantation: 434, 868, and 1400 MHz. The achieved radiation efficiencies at these frequencies are 0.4%, 2.2%, and 1.2%, respectively, when simulated in a f 100 - mm spherical phantom with muscle-equivalent electromagnetic properties. The radiation performance at each frequency is compared to the fundamental limitations and closely approach them. Prototypes are characterized for the experimental validation. © 2020 IEEE.
Fichier principal
Vignette du fichier
Nikolayev et al. - 2020 - Application of fundamental in-body radiation limit.pdf (2.63 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03248668 , version 1 (20-10-2021)

Identifiants

Citer

D. Nikolayev, W. Joseph, M. Zhadobov, L. Martens, R. Sauleau, et al.. Application of Fundamental In-Body Radiation Limitations to Practical Design of Antennas for Implantable Bioelectronics. 2020 IEEE MTT-S International Microwave Biomedical Conference, IMBioC 2020, Dec 2020, Toulouse, France. pp.9384901, ⟨10.1109/IMBIoC47321.2020.9384901⟩. ⟨hal-03248668⟩
31 Consultations
30 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More