Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed

Microwave hypothermia using waveguide appplicators has gained popularity because of the desirable heating characteristic of this type of heating modality. This project investigates the feasibility of using Dielectric Open-ended Rectangular Waveguide Direct-contact Antenna (DORWDA) array for depositi...

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Main Author:	Mohamed, Harun
Format:	Thesis
Language:	English
Published:	1995
Subjects:	Microwave communication systems
Online Access:	https://ir.uitm.edu.my/id/eprint/100031/1/100031.pdf
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id	my-uitm-ir.100031
record_format	uketd_dc
spelling	my-uitm-ir.1000312024-09-03T22:41:06Z Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed 1995 Mohamed, Harun Microwave communication systems Microwave hypothermia using waveguide appplicators has gained popularity because of the desirable heating characteristic of this type of heating modality. This project investigates the feasibility of using Dielectric Open-ended Rectangular Waveguide Direct-contact Antenna (DORWDA) array for depositing microwave energy into the human body for heating deep-seated tumours. A distilled water-loaded DORWDA array applicator with a small aperture size (1.75 X 10.3 cm ) has been developed for deep hyperthermia applications. The operating frequency is chosen to be 915 MHz. The water loading provides a good coupling of radiated power into tissues. The observed variation in standing wave ratios and the concentration of the fields are found to be satisfactory for localized deep hyperthermia treatments. Analytically, the near field distributions inside the human muscle are obtained by using the Kirchoff-Huygens principles and scalar theory of diffraction. The obtained field patterns may only be moderately focused, but these are me optimun for the present applicator. 1995 Thesis https://ir.uitm.edu.my/id/eprint/100031/ https://ir.uitm.edu.my/id/eprint/100031/1/100031.pdf text en public advanced_diploma Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Microwave communication systems
spellingShingle	Microwave communication systems Mohamed, Harun Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed
description	Microwave hypothermia using waveguide appplicators has gained popularity because of the desirable heating characteristic of this type of heating modality. This project investigates the feasibility of using Dielectric Open-ended Rectangular Waveguide Direct-contact Antenna (DORWDA) array for depositing microwave energy into the human body for heating deep-seated tumours. A distilled water-loaded DORWDA array applicator with a small aperture size (1.75 X 10.3 cm ) has been developed for deep hyperthermia applications. The operating frequency is chosen to be 915 MHz. The water loading provides a good coupling of radiated power into tissues. The observed variation in standing wave ratios and the concentration of the fields are found to be satisfactory for localized deep hyperthermia treatments. Analytically, the near field distributions inside the human muscle are obtained by using the Kirchoff-Huygens principles and scalar theory of diffraction. The obtained field patterns may only be moderately focused, but these are me optimun for the present applicator.
format	Thesis
qualification_level	advanced_diploma
author	Mohamed, Harun
author_facet	Mohamed, Harun
author_sort	Mohamed, Harun
title	Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed
title_short	Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed
title_full	Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed
title_fullStr	Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed
title_full_unstemmed	Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed
title_sort	field consideration of focusing waveguide applicator for deep microwave hyperthermia / harun mohamed
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	1995
url	https://ir.uitm.edu.my/id/eprint/100031/1/100031.pdf
_version_	1811769048564760576

Field consideration of focusing waveguide applicator for deep microwave hyperthermia / Harun Mohamed

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