Approximation of Surface-SAR in a Realistic Head Model for Microwave Exposure Using External Magnetic Near-Field

• FUJIWARA Osamu

  the Faculty of Engineering, Nagoya Institute of Technology

• NOMURA Michihiko

  the Faculty of Engineering, Nagoya Institute of Technology

抄録

A method is described for approximately estimating the surface specific-absorption-rate (SAR) in an anatomically realistic model of the human head for microwave exposure using the external magnetic near-field. The finite-difference time-domain (FD-TD) technique is used to compute the electromagnetic fields in the head model for 750-MHz and 1.5-GHz far-field exposures with the 1991 ANSI specified safety level. The spatial pattern tracking between the one-gram averaged surface-SAR and external magnetic near-field is demonstrated on the horizontal cross sectional perimeter of the head model. The regression coefficients between them are also obtained on the fifty-five horizontal cross sectional perimeters, which could give an approximate value of the surface-SAR in an acutual head, if the external magnetic near-field would be measured. This is validated by the theoretical results in a semi-infinite homogeneous flat model for normal incidence microwave exposure.

収録刊行物

• IEICE transactions on communications

  IEICE transactions on communications 78 (2), 140-144, 1995-02-25

  一般社団法人電子情報通信学会

キーワード

• Microwave bio-effect
• realistic head model
• FD-TD technique
• surface-SAR
• external magnetic near-field

詳細情報

• CRID: 1573950402232390656
• NII論文ID: 110003217299
• NII論文ID: 10000108199
• NII書誌ID: AA10826261
• ISSN: 09168516
• Web Site: http://id.nii.ac.jp/1476/00004324/
• 本文言語コード: en
• データソース種別:
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