Reducing irradiation human head by cellular phone antenna
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2014, Vol 0, Issue 59
Abstract
Introduction. The paper proposed a method of reducing irradiation human head by cellular phone antenna. A method of solving this problem, called the compensation method. In this method, an additional radiator is placed between the head and handset (main) radiator. The results. In this work were found the electromagnetic fields. Also we solved system of linier equation and calculated the currents of radiators. We found the boundary surface of the dark spot. Conclusion. We have described the characteristics of the compensation method for the creation of weak-field area in the near region of transmitting antenna. The dimensions of the weak-field area were determined, And the mutual coupling between the main and auxiliary antennas was analyzed. The results obtained showed that under realistic condition, the compensation method permits decreasing the irradiation power by a factor of 4 to 50. Methods of wideband field compensation will be separately considered.
Authors and Affiliations
V. Naidenko, N. Salamatina
Keywords
Related Articles
- EP ID EP308897
- DOI 10.20535/RADAP.2014.59.58-65
- Views 78
- Downloads 0
Algorithm of estimation of target movement parameters with manoeuvre detection
Using method of Kalman filtering the algorithm of estimation of target movement parameters with manoeuvre detection has been developed. The algorithm contains relations among filter channnels.
To a question on classification of feedback in radioelectronic circuits
In the article, necessity of the analysis of conditions when it is possible to neglect direct transfer of a signal through the reversible feedback channel is shown. It allows to define a kind of a feedback correctly
Theory of microstrip circular antenna
The paper discusses the methodology of calculation of circular microstrip antenna. The antenna itself has been presented as a cylindrical resonator electrically small height. The mathematical description of the electroma...
Improving of the Modeling Technique of the Discrete-Continuous Stochastic Systems by the Method of Erlang Phases
The construction of models of behavior of discrete-continuous stochastic systems non-Markov type by the method of Erlang phases is the object of consideration. This paper shows the principles of improving the technology...
The mathematic model of process of the interconnection of the laser radiation with the biologics objects
The method of the mathematic analysis of the second laser radiation, which interconnection with blood elements, are purposed