Proceedings ArticleDOI
Analysis of a rotationally symmetric cellular phone with a monopole antenna
Robert Leijon,Per-Simon Kildal,Ahmed A. Kishk +2 more
- Vol. 1, pp 46-49
TLDR
In this paper, a rotationally symmetric cellular phone with a monopole antenna is comprehensively analyzed and the radiation efficiency is studied as a function of the size of the phone body and of the antenna length.Abstract:
A rotationally symmetric cellular phone with a monopole antenna is comprehensively analysed. The radiation efficiency is studied as a function of the size of the phone body and of the antenna length. Further, the possibility of shortening the monopole by coating it with a highpermittivity dielectric at the monopole is investigated. All calculations are performed both with and without a model of a human hand holding the phone. The Method of Moments is used for the simulations and the results are confirmed by measurements. A very good agreement is observed.read more
Citations
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Proceedings ArticleDOI
Radiation From Directive Antennas Close to Human Tissue
TL;DR: In this paper, the authors compared the relative power absorption of a Huygen's source with a Hertzian dipole, and found that the relative absorption is substantially lower for the Huygens source compared to the Hertzians, when the antenna is placed close to the head.
References
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Journal ArticleDOI
EM interaction of handset antennas and a human in personal communications
TL;DR: In this article, the authors investigated the effect of the tissue location and physical model on the antenna performance and found that the head and hand absorb between 48 and 68% of the power delivered to the antenna.
Journal ArticleDOI
FDTD calculation of radiation patterns, impedance, and gain for a monopole antenna on a conducting box
TL;DR: In this article, the ability of the finite-difference-time-domain (FDTD) method to calculate radiation patterns, input impedance, and gain for a monopole antenna on a conducting box is demonstrated.