A 1-D Model for the Millimeter-Wave Absorption and Heating of Dielectric Materials in Power Beaming Applications

Rittersdorf, I. M.; Hoff, Brad W.; Richardson, A. S.; Martin, Stephanie A.; Yakovlev, Vadim V.; Kim, P.; Schumer, J.W.

doi:10.1109/tps.2021.3051108

Cited by 7 publications

(4 citation statements)

References 36 publications

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“…Thus, such applicators reflect a capacity for tissue penetration creating a regulated concentration of heat in the region of tumor. Again, this thermal-BE permits benefit selective destruction of tumors without damage to healthy adjacent areas [28][29][30][31][32][33].…”

Section: Hyperthermia Tissues Medical Therapiesmentioning

confidence: 99%

Analysis of the Interaction Effects of Electromagnetic Fields with Major Living Tissues—One Health Concept Numerical Evaluation Strategy

Razek

2024

Digital Technol. Res. Appl.

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The well-being and sociability of individuals have always been part of modernity. The development of new technologies that meet these aspirations is receiving increasing attention. Thus, strengthening the desired objectives of these technologies and minimizing their undesirable side effects is the subject of growing commitment. The present contribution aims, in this context, to evaluate and analyze the desired and undesirable effects of the interaction of electromagnetic fields with living tissues in general. These are routines based on mathematical modeling reinforcing the expected functions as well as those of control and protection against undesirable effects. These adverse effects correspond to the “One Health” concept, which encompasses the health of animals, plants and humans, as well as ecological disorders created by human activity. First, in this article, the interactions of electromagnetic fields with tissues are analyzed, involving their thermal biological effects of desired and undesired exposures. The roles of blood and sap fluids in bio-affected tissues are then analyzed. Secondly, the equations governing electromagnetics and bio-heat, as well as their coupled solution are studied. Third, the thermal behavior of tissues and the adverse effects of exposure are examined. Next, monitoring and defending the effects of exposures are discussed. This contribution, supported by a review of the literature, illustrates routines for mathematical modeling of the generalized interaction of electromagnetic fields with living tissues.

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Section: Hyperthermia Tissues Medical Therapiesmentioning

confidence: 99%

Analysis of the Interaction Effects of Electromagnetic Fields with Major Living Tissues—One Health Concept Numerical Evaluation Strategy

Razek

2024

Digital Technol. Res. Appl.

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“…Owing to this, treatment forecasting usually depends on the optimization of the SAR related to deposited EM energy corresponding to the heat source. Many works have been done in the evaluation, planning and optimization of hyperthermia treatment [34][35][36][37] .…”

Section: Hyperthermia Treatmentsmentioning

confidence: 99%

Thermal effects of electromagnetic origin from heating processes to biological disturbances due to field exposure—A review

Razek

2023

TSE

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This contribution aims to appraise, analyze and evaluate the literature relating to the interaction of electromagnetic fields (EMF) with matter and the resulting thermal effects. This relates to the wanted thermal effects via the application of fields as well as those uninvited resulting from exposure to the field. In the paper, the most popular EMF heating technologies are analyzed. This involves on the one hand high frequency induction heating (HFIH) and on the other hand microwave heating (MWH), including microwave ovens and hyperthermia medical treatment. Then, the problem of EMF exposure is examined and the resulting biological thermal effects are illuminated. Thus, the two most common cases of wireless EMF devices, namely digital communication tools and inductive power transfer appliances are analyzed and evaluated. The last part of the paper concerns the determination of the different thermal effects, which are studied and discussed, by considering the governing EMF and heat transfer (or bio heat) equations and their solution methodologies.

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“…In recent years, dielectric materials have been broadly used in microwave applications, such as wireless communications [1], antennas [2], and wireless power transfer [3]. Accurate measurement of the dielectric permittivity is not only a key task in microwave applications but also a basis for material development.…”

Section: Introductionmentioning

confidence: 99%

An improved waveguide method for accurate complex permittivity measurement of medium/high-loss material

Wang,

Jiang,

Yao

et al. 2024

Meas. Sci. Technol.

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In this paper, we propose an improved method for accurately measuring medium/high-loss material permittivity to overcome the air gap problem in the conventional waveguide method.This method improves the sample fixture and has a high tolerance on the wide side air gap, which is a dominant factor affecting the accuracy of the conventional waveguide method.Meanwhile, the proposed method avoids the effects of tilting and displacement during sample assembly. In our study, a typical lossy material commonly used in vacuum tubes has been quantitatively analyzed in Ka-band. The simulation results show that the relative error of εr’ can be reduced from more than 10% to less than 1% compared with the conventional waveguide method with a 0.1mm wide side tolerance. The relative error of tanδ can be reduced from over 20% to below 6%. In addition, different lossy materials are discussed. The accuracy improvement was verified by measuring different BeO-TiO2 samples using conventional and improved methods.

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A 1-D Model for the Millimeter-Wave Absorption and Heating of Dielectric Materials in Power Beaming Applications

Cited by 7 publications

References 36 publications

Analysis of the Interaction Effects of Electromagnetic Fields with Major Living Tissues—One Health Concept Numerical Evaluation Strategy

Analysis of the Interaction Effects of Electromagnetic Fields with Major Living Tissues—One Health Concept Numerical Evaluation Strategy

Thermal effects of electromagnetic origin from heating processes to biological disturbances due to field exposure—A review

An improved waveguide method for accurate complex permittivity measurement of medium/high-loss material

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