Dual Concentric Conductor Radiator for Microwave Hyperthermia with Improved Field Uniformity to Periphery of Aperture
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概要
- 論文の詳細を見る
Electromagnetic radiation patterns of planar 915 MHz Dual Concentric Conductor (DCC) antennas were investigated with theoretical finite difference time domain (FDTD) analyses and experimental measurements of power deposition in a homogeneous lossy dielectric load. Power deposition (SAR) patterns were characterized by scanning an electric field sensor in front of the radiating aperture 1 cm deep in liquid "muscle tissue" phantom. Results showed close agreement between the theoretical simulations and measured SAR patterns for a 3.5 cm square aperture. Additional SAR measurements demonstrated the ability to vary aperture size from 3.5-6 cm with minimal change in shape of the power deposition pattern. Both analyses indicated that effective power deposition (gt50% SAR_ltmaxgt) extends to the periphery of the square apertures. These data support the conclusion that the DCC aperture constitutes an improved radiator to be used as the functional building block of larger array applicators which are required for adjustable heating of large superficial tissue regions in the treatment of cancer.
- 社団法人電子情報通信学会の論文
- 1995-06-25
著者
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Diederich Chris
University Of California San Francisco Department Of Radiation Oncology Hyperthermia Section
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Stauffer Paul
University of California, San Francisco, Department of Radiation Oncology, Hyperthermia Section
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Leoncini Marco
University of Florence, Department of Electrical Engineering
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Manfrini Vinicio
University of Florence, Department of Electrical Engineering
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Gentili Guido
University of Florence, Department of Electrical Engineering
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Bozzo David
University of California, San Francisco, Department of Radiation Oncology, Hyperthermia Section
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Bozzo David
University Of California San Francisco Department Of Radiation Oncology Hyperthermia Section
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Stauffer Paul
University Of California San Francisco Department Of Radiation Oncology Hyperthermia Section
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Gentili Guido
University Of Florence Department Of Electrical Engineering
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Leoncini Marco
University Of Florence Department Of Electrical Engineering
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Manfrini Vinicio
University Of Florence Department Of Electrical Engineering