Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation

Cemanur Aydinalp; Ismail Dilman; Sulayman Joof; Tuba Yilmaz; Mehmet Cayoren; Mehmet Nuri Akinci

doi:10.23919/ACES57841.2023.10114706

Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation

Cemanur Aydinalp, Ismail Dilman, Sulayman Joof, Tuba Yilmaz, Mehmet Cayoren, Mehmet Nuri Akinci

Department of Electronics and Communication Engineering

Istanbul Technical University

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

Abstract

This paper investigates a new method to calculate the dielectric property (DP) of biological tissues with the open-ended coaxial probes (OECP). The DP of tissues is a continuous function of frequency which can be represented with different dielectric relaxation models. Thus, the accuracy of DP measurements can be increased by enforcing such spectral continuity using the Cole-Cole model. A cost functional based on an admittance integral was calculated at the tip of the OECP. Then, Cole-Cole parameters ( epsilon_ infty, epsilon_s, tau, alpha and sigma) were applied into the admittance integral to solve a set of nonlinear equations. The OECP, biological tissues and calibration materials were simulated using Ansys HFSS simulation program from 0.5 to 6 GHz frequency range with 0.25 GHz steps (23 frequency points). Finally, the accuracy of results was compared with data obtained from literature.

Original language	English
Title of host publication	2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781733509633
DOIs	https://doi.org/10.23919/ACES57841.2023.10114706
Publication status	Published - 2023
Event	2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023 - Monterey, United States Duration: 26 Mar 2023 → 30 Mar 2023

Publication series

Name	2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023

Conference

Conference	2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023
Country/Territory	United States
City	Monterey
Period	26/03/23 → 30/03/23

Bibliographical note

Publisher Copyright:
© 2023 ACES.

Funding

This work has received funding from Health Institutes of Turkey (TUSEB) grant agreement 22724 and COST Action grant agreement CA18223.

Funders	Funder number
TUSEB	22724
Türkiye Sağlık Enstitüleri Başkanlığı
European Cooperation in Science and Technology	CA18223

Keywords

microwave material characterization
open-ended coaxial probes

Access to Document

10.23919/ACES57841.2023.10114706

Cite this

Aydinalp, C., Dilman, I., Joof, S., Yilmaz, T., Cayoren, M., & Akinci, M. N. (2023). Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation. In 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023 (2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/ACES57841.2023.10114706

Aydinalp, Cemanur ; Dilman, Ismail ; Joof, Sulayman et al. / Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation. 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023).

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title = "Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation",

abstract = "This paper investigates a new method to calculate the dielectric property (DP) of biological tissues with the open-ended coaxial probes (OECP). The DP of tissues is a continuous function of frequency which can be represented with different dielectric relaxation models. Thus, the accuracy of DP measurements can be increased by enforcing such spectral continuity using the Cole-Cole model. A cost functional based on an admittance integral was calculated at the tip of the OECP. Then, Cole-Cole parameters ( epsilon_ infty, epsilon_s, tau, alpha and sigma) were applied into the admittance integral to solve a set of nonlinear equations. The OECP, biological tissues and calibration materials were simulated using Ansys HFSS simulation program from 0.5 to 6 GHz frequency range with 0.25 GHz steps (23 frequency points). Finally, the accuracy of results was compared with data obtained from literature.",

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author = "Cemanur Aydinalp and Ismail Dilman and Sulayman Joof and Tuba Yilmaz and Mehmet Cayoren and Akinci, {Mehmet Nuri}",

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year = "2023",

doi = "10.23919/ACES57841.2023.10114706",

language = "English",

series = "2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023",

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Aydinalp, C, Dilman, I, Joof, S, Yilmaz, T , Cayoren, M & Akinci, MN 2023, Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation. in 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023. 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023, Institute of Electrical and Electronics Engineers Inc., 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023, Monterey, United States, 26/03/23. https://doi.org/10.23919/ACES57841.2023.10114706

Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation. / Aydinalp, Cemanur; Dilman, Ismail; Joof, Sulayman et al.
2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023).

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

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AU - Joof, Sulayman

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AU - Cayoren, Mehmet

AU - Akinci, Mehmet Nuri

PY - 2023

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N2 - This paper investigates a new method to calculate the dielectric property (DP) of biological tissues with the open-ended coaxial probes (OECP). The DP of tissues is a continuous function of frequency which can be represented with different dielectric relaxation models. Thus, the accuracy of DP measurements can be increased by enforcing such spectral continuity using the Cole-Cole model. A cost functional based on an admittance integral was calculated at the tip of the OECP. Then, Cole-Cole parameters ( epsilon_ infty, epsilon_s, tau, alpha and sigma) were applied into the admittance integral to solve a set of nonlinear equations. The OECP, biological tissues and calibration materials were simulated using Ansys HFSS simulation program from 0.5 to 6 GHz frequency range with 0.25 GHz steps (23 frequency points). Finally, the accuracy of results was compared with data obtained from literature.

AB - This paper investigates a new method to calculate the dielectric property (DP) of biological tissues with the open-ended coaxial probes (OECP). The DP of tissues is a continuous function of frequency which can be represented with different dielectric relaxation models. Thus, the accuracy of DP measurements can be increased by enforcing such spectral continuity using the Cole-Cole model. A cost functional based on an admittance integral was calculated at the tip of the OECP. Then, Cole-Cole parameters ( epsilon_ infty, epsilon_s, tau, alpha and sigma) were applied into the admittance integral to solve a set of nonlinear equations. The OECP, biological tissues and calibration materials were simulated using Ansys HFSS simulation program from 0.5 to 6 GHz frequency range with 0.25 GHz steps (23 frequency points). Finally, the accuracy of results was compared with data obtained from literature.

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Aydinalp C, Dilman I, Joof S, Yilmaz T , Cayoren M , Akinci MN. Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation. In 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023. Institute of Electrical and Electronics Engineers Inc. 2023. (2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023). doi: 10.23919/ACES57841.2023.10114706

Estimation of Dielectric Property for Biological Tissues by Multi-Frequency Approximation

Abstract

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Keywords

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