Title :
Bidimensional scattering of TM and TE polarized waves by dielectric bodies using the CG-FFT method: Application to mobile communications systems
Author :
Vaquer, M. ; Mallorqui, J.J. ; Cardama, A. ; Jofre, Li
Author_Institution :
Grup Antenes-Microones-Radar, Dept. Teoria del Senyal i Comunicacions. ETSETB, Universitat Politÿcnica de Catalunya. P.O. Box 30002, 08080 Barcelona, SPAIN.
Abstract :
In the study of electromagnetic radiation effects over dielectric bodies, effective numerical methods are needed. At present, there is a lack of tools for measuring this effects and due to the huge growth of microwave devices, like cellular radio telephones working close to the human body, it is necessary to develop accurate numerical methods for evaluating those effects. One of the most efficient and extensively used method is the FFT-CGM (Fast-Fourier-Transform Conjugate Gradient Method). In this paper, algorithms for solving the two-dimensional scattering of transversal magnetic (TM) and transversal electric (TE) polarized waves by a lossy dielectric and metallic objects are presented. At the same time, the SAR (Specific Absorption Rate) of tissues and the modified radiation diagrams when the body is present are obtained from the diffracted fields.
Keywords :
Dielectric losses; Dielectric measurements; Electromagnetic measurements; Electromagnetic radiation; Electromagnetic scattering; Electromagnetic wave polarization; Microwave measurements; Mobile communication; Specific absorption rate; Tellurium;
Conference_Titel :
Microwave Conference, 1993. 23rd European
Conference_Location :
Madrid, Spain
DOI :
10.1109/EUMA.1993.336578