Struggle with Environmental Influences
The effect of external actions (intense external disturbance) on the operation of a complicated radiator structure is investigated. As an example, the impact of metallic objects nearing the antenna system is analyzed, in which the minimal irradiation of the user’s body is realized. Two methods based on two information sources, namely antennas driving currents and antennas fields at a given point, are studied to counteract the disturbance of system operation caused by the presence of different metallic objects in close proximity to the radiators. It is demonstrated that in the presence of severe external actions, the second method based on field measurement is more efficient. It is suggested that a block scheme for automatic structure adjustment be used.
Holon Institute Technology, Israel.
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