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Original Research
alka Singla
SLIET: Sant Longowal Institute of Engineering and Technology
Corresponding Author
ORCiD: https://orcid.org/0000-0001-8661-9346
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This work is licensed under a CC BY 4.0 License. Read Full License
For treating superficial tumours patch antennas present a more compact structure and are easy to design. Graphene-based antenna applicators can further provide an effective solution for the non-invasive procedure by selecting different configurations of the patch for producing homogeneous energy deposition. Graphene patch facilitates the reduction of surface waves among the healthy tissues. Four different antenna shapes of graphene-based antenna applicators are designed at operating frequency of 915 MHz in ISM band and comparison is performed in terms of SAR and temperature distribution. Among all the applicators triangular patch applicator outperforms in terms of more localized heating and attains the highest value of temperature at 324°K and SAR of 186 W/Kg at insertion depth of 6 mm. The double slot applicator also provides localized SAR and uniform heating but results in the lower temperature of 315°K and much reduced SAR of 41 W/Kg at same insertion depth. Further, the effect of distance between the source and tissue model has also been investigated. It has been found that SAR decreases with increased distance from the radiating source. At the optimized distance of 3 mm, SAR values obtained for rectangular, circular, triangular and double slot patch applicator are 60 W/Kg, 54.7 W/Kg, 134.1 W/Kg and 54.2 W/Kg respectively.
Keywords
Graphene Nanomaterial, Microwave Hyperthermia, Patch applicator, Finite Element Mesh
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A new preprint design is coming!
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Original Research
alka Singla
SLIET: Sant Longowal Institute of Engineering and Technology
Corresponding Author
ORCiD: https://orcid.org/0000-0001-8661-9346
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 15 Feb, 2021
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Materials Engineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
For treating superficial tumours patch antennas present a more compact structure and are easy to design. Graphene-based antenna applicators can further provide an effective solution for the non-invasive procedure by selecting different configurations of the patch for producing homogeneous energy deposition. Graphene patch facilitates the reduction of surface waves among the healthy tissues. Four different antenna shapes of graphene-based antenna applicators are designed at operating frequency of 915 MHz in ISM band and comparison is performed in terms of SAR and temperature distribution. Among all the applicators triangular patch applicator outperforms in terms of more localized heating and attains the highest value of temperature at 324°K and SAR of 186 W/Kg at insertion depth of 6 mm. The double slot applicator also provides localized SAR and uniform heating but results in the lower temperature of 315°K and much reduced SAR of 41 W/Kg at same insertion depth. Further, the effect of distance between the source and tissue model has also been investigated. It has been found that SAR decreases with increased distance from the radiating source. At the optimized distance of 3 mm, SAR values obtained for rectangular, circular, triangular and double slot patch applicator are 60 W/Kg, 54.7 W/Kg, 134.1 W/Kg and 54.2 W/Kg respectively.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
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