Title :
Electromagnetic absorption by a partially screened double-layer lossy dielectric sphere axisymmetrically excited by an electric dipole
Author :
Radchenko, V.V. ; Nosich, A.I.
Author_Institution :
Inst. of Radio-Phys. & Electron., Nat. Acad. of Sci. of Ukraine, Kharkov, Ukraine
Abstract :
We have applied a mathematically grounded method for investigation of the problem of screening the head of a user of a dipole antenna with metallic helmet. This method has enabled us to build a numerical solution in the wide frequency band with guaranteed convergence. The obtained results can be useful, for example, in the design of the mobile communication devices and, in particular, in choosing optimal sizes of screens necessary to protect biological objects from microwave radiation, up to a necessary level.
Keywords :
antenna theory; dielectric losses; dipole antennas; dipole antenna; electric dipole; electromagnetic absorption; guaranteed convergence; mathematically grounded method; metallic helmet; microwave radiation; mobile communication devices; numerical solution; partially screened double-layer lossy dielectric sphere; wide frequency band; Dielectric constant; Dielectric losses; Electromagnetic fields; Electromagnetic radiation; Electromagnetic wave absorption; Finite difference methods; Frequency estimation; Humans; Imaging phantoms; Integral equations;
Conference_Titel :
Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves, 2004. MSMW 04. The Fifth International Kharkov Symposium on
Print_ISBN :
0-7803-8411-3
DOI :
10.1109/MSMW.2004.1345866
