A preliminary study of RF propagation for high data rate brain telemetry

Särestöniemi, Mariella; Pomalaza-Raez, Carlos; Sayrafian, Kamran; Myllylä, Teemu; Iinatti, Jari (2022-02-11)
 
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https://doi.org/10.1007/978-3-030-95593-9_11

Särestöniemi, Mariella
Pomalaza-Raez, Carlos
Sayrafian, Kamran
Myllylä, Teemu
Iinatti, Jari
Springer Nature
11.02.2022

Särestöniemi M., Pomalaza-Raez C., Sayrafian K., Myllylä T., Iinatti J. (2022) A Preliminary Study of RF Propagation for High Data Rate Brain Telemetry. In: Ur Rehman M., Zoha A. (eds) Body Area Networks. Smart IoT and Big Data for Intelligent Health Management. BODYNETS 2021. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 420. Springer, Cham. https://doi.org/10.1007/978-3-030-95593-9_11

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© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2022. “This is a post-peer-review, pre-copyedit version of an article published in Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. The final authenticated version is available online at https://doi.org/10.1007/978-3-030-95593-9_11.
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doi:https://doi.org/10.1007/978-3-030-95593-9_11
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https://urn.fi/URN:NBN:fi-fe2022021118627
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Abstract

This paper presents the preliminary results of a study on the radio frequency (RF) propagation inside the human skull at several Industrial, Scientific and Medical (ISM) and ultrawideband UWB frequencies. These frequency bands are considered as possible candidates for high data rate wireless brain telemetry. The study is conducted using a high-resolution 3D computational model of the human head. Power flow analysis is conducted to visualize propagation inside the brain for two different on-body antenna locations. Furthermore, channel attenuation between an on-body directional mini-horn antenna and an implant antenna at different depths inside the brain is evaluated. It is observed that radio frequency propagation at 914 MHz sufficiently covers the whole volume of the brain. The coverage reduces at higher frequencies, specially above 3.1 GHz. The objective of this comparative analysis is to provide some insight on the applicability of these frequencies for high data rate brain telemetry or various monitoring, and diagnostic tools.

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