Ear-to-Ear Propagation Model—Comparison of Free-Space and On-Body Gain Formulations

Jonas Ørnskov Nielsen; Søren Helstrup Kvist; Kaj Bjarne Jakobsen

doi:10.23919/EuCAP57121.2023.10133263

Ear-to-Ear Propagation Model—Comparison of Free-Space and On-Body Gain Formulations

Jonas Ørnskov Nielsen, Søren Helstrup Kvist, Kaj Bjarne Jakobsen

GN Hearing Danmark A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

Two different formulations of the antenna far-field used to evaluate the on-body path gain at 2.45 GHz through a ray-based ear-to-ear propagation model are compared. The free-space far-field formulation does not take field coupling to the human body in the on-body far-field into account, whereas the on-body formulation does. The simulations are compared with a reference full-wave simulation. It is expected that the on-body formulation should improve the accuracy of the propagation model since it takes the field-to-body coupling into account in the on-body far-field. It is found that the results of the comparative study are aligned with expectations. The path gain that results from the use of the on-body far-field formulation is closer to the reference path gain in the band of interest, i.e., around 2.45 GHz.

Original language	English
Title of host publication	Proceedings of the 17th European Conference on Antennas and Propagation (EuCAP)
Number of pages	4
Publisher	IEEE
Publication date	2023
DOIs	https://doi.org/10.23919/EuCAP57121.2023.10133263
Publication status	Published - 2023
Event	17^th European Conference on Antennas and Propagation - Florence, Italy Duration: 26 Mar 2023 → 31 Mar 2023

Conference

Conference	17^th European Conference on Antennas and Propagation
Country/Territory	Italy
City	Florence
Period	26/03/2023 → 31/03/2023

Keywords

On-body propagation
Body-centric wireless communication
Propagation modeling
Near-field-to-far-field transformations
Geodesic rays
Creeping waves

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10.23919/EuCAP57121.2023.10133263

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title = "Ear-to-Ear Propagation Model—Comparison of Free-Space and On-Body Gain Formulations",

abstract = "Two different formulations of the antenna far-field used to evaluate the on-body path gain at 2.45 GHz through a ray-based ear-to-ear propagation model are compared. The free-space far-field formulation does not take field coupling to the human body in the on-body far-field into account, whereas the on-body formulation does. The simulations are compared with a reference full-wave simulation. It is expected that the on-body formulation should improve the accuracy of the propagation model since it takes the field-to-body coupling into account in the on-body far-field. It is found that the results of the comparative study are aligned with expectations. The path gain that results from the use of the on-body far-field formulation is closer to the reference path gain in the band of interest, i.e., around 2.45 GHz.",

keywords = "On-body propagation, Body-centric wireless communication, Propagation modeling, Near-field-to-far-field transformations, Geodesic rays, Creeping waves",

author = "{{\O}rnskov Nielsen}, Jonas and {Helstrup Kvist}, S{\o}ren and Jakobsen, {Kaj Bjarne}",

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booktitle = "Proceedings of the 17th European Conference on Antennas and Propagation (EuCAP)",

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Ørnskov Nielsen, J, Helstrup Kvist, S & Jakobsen, KB 2023, Ear-to-Ear Propagation Model—Comparison of Free-Space and On-Body Gain Formulations. in Proceedings of the 17th European Conference on Antennas and Propagation (EuCAP). IEEE, 17^th European Conference on Antennas and Propagation , Florence, Italy, 26/03/2023. https://doi.org/10.23919/EuCAP57121.2023.10133263

TY - GEN

T1 - Ear-to-Ear Propagation Model—Comparison of Free-Space and On-Body Gain Formulations

AU - Ørnskov Nielsen, Jonas

AU - Helstrup Kvist, Søren

AU - Jakobsen, Kaj Bjarne

PY - 2023

Y1 - 2023

N2 - Two different formulations of the antenna far-field used to evaluate the on-body path gain at 2.45 GHz through a ray-based ear-to-ear propagation model are compared. The free-space far-field formulation does not take field coupling to the human body in the on-body far-field into account, whereas the on-body formulation does. The simulations are compared with a reference full-wave simulation. It is expected that the on-body formulation should improve the accuracy of the propagation model since it takes the field-to-body coupling into account in the on-body far-field. It is found that the results of the comparative study are aligned with expectations. The path gain that results from the use of the on-body far-field formulation is closer to the reference path gain in the band of interest, i.e., around 2.45 GHz.

AB - Two different formulations of the antenna far-field used to evaluate the on-body path gain at 2.45 GHz through a ray-based ear-to-ear propagation model are compared. The free-space far-field formulation does not take field coupling to the human body in the on-body far-field into account, whereas the on-body formulation does. The simulations are compared with a reference full-wave simulation. It is expected that the on-body formulation should improve the accuracy of the propagation model since it takes the field-to-body coupling into account in the on-body far-field. It is found that the results of the comparative study are aligned with expectations. The path gain that results from the use of the on-body far-field formulation is closer to the reference path gain in the band of interest, i.e., around 2.45 GHz.

KW - On-body propagation

KW - Body-centric wireless communication

KW - Propagation modeling

KW - Near-field-to-far-field transformations

KW - Geodesic rays

KW - Creeping waves

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DO - 10.23919/EuCAP57121.2023.10133263

M3 - Article in proceedings

BT - Proceedings of the 17th European Conference on Antennas and Propagation (EuCAP)

PB - IEEE

T2 - 17<sup>th</sup> European Conference on Antennas and Propagation

Y2 - 26 March 2023 through 31 March 2023

ER -

Ear-to-Ear Propagation Model—Comparison of Free-Space and On-Body Gain Formulations

Abstract

Conference

Keywords

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