Abstract
Design advantages of square- and rectangular-loop antennas make these types of antennas attractive for use in mobile devices to improve their communication capabilities. However, modified characteristics of such antennas require additional analysis to evaluate interaction with antennas of other types and other components of mobile devices and human organisms. In this paper, the azimuth and radial field components of a rectangular-loop antenna in near and far fields are calculated and the results are compared to the elementary circular-loop antenna's field. It is demonstrated that loop dimensions and shape substantially affect its field magnitude, especially in the near field.
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