Interaction of the near-zone fields of a slot on a conducting sphere with a spherical model of man

Journal Article · Wed Aug 01 00:00:00 EDT 1984 · IEEE Trans. Microwave Theory Tech.; (United States)

OSTI ID:6300285

Zhu, S; Chen, K; Chuang, H

The authors consider the geometry of a lossy dielectric sphere, simulating a human body, placed in the proximity of a conducting sphere with a radiating slot, simulating a leaking microwave oven. An exact solution is obtained for this idealized problem by using two spherical coordinate systems and employing the addition theorem to translate the vector spherical harmonics between the coordinate systems. Multiple scatterings of the EM wave between the two spheres are determined by solving the boundary value problems iteratively. An extensive numerical computation has been conducted to determine the induced SAR in the dielectric sphere, and the body-source coupling effect was evaluated. It was found that a serious error in the SAR estimation can be caused if the body-source coupling is neglected, a common approximation used in most of the existing studies on the subject.

• Research Organization: Department of Electrical Engineering and System Science, Michigan State University, East Lansing, MI 48824
• OSTI ID: 6300285
• Journal Information: IEEE Trans. Microwave Theory Tech.; (United States), Journal Name: IEEE Trans. Microwave Theory Tech.; (United States) Vol. MTT-32:8; ISSN IETMA
• Country of Publication: United States
• Language: English

Related Subjects

560400* -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION
APPLIANCES
BIOLOGICAL EFFECTS
BODY
BOUNDARY-VALUE PROBLEMS
COORDINATES
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ENERGY ABSORPTION
ERRORS
ITERATIVE METHODS
MATHEMATICAL MODELS
MICROWAVE OVENS
MICROWAVE RADIATION
MULTIPLE SCATTERING
OVENS
PHYSICAL PROPERTIES
RADIATIONS
SCATTERING
SPHERES
SPHERICAL HARMONICS