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FDTD simulations and measurements for cell phone with planar antennas |
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| Authors: | Claudio R. Fernández Mateus Bonadiman Alvaro A. A. De Salles |
| Affiliation: | 1. Electrical Engineering Department, Optoelectronic Communications Laboratory, Federal University of Rio Grande do Sul (UFRGS), Av. Osvaldo Arahna, 103, RS 90035-190, Porto Alegre, Brasil 2. the Electrical Engineering Department, Aeronautical Technologic Institute (ITA), S?o José dos Campos, SP, Brasil |
| Abstract: | The Finite-Difference Time-Domain (fdtd) method is used to calculate the cellular phone far and near field and the specific absorption rate (sar) in the user’s head. The conventional λ/4 monopole and a simple planar antenna are simulated and measured. The simulated results are in good agreement with those measured for thevswr and for the radiation patterns on the horizontal and vertical planes. These results show that significant improvements in the antenna radiation efficiency and in the reduction of thesar in the head are obtained when planar antennas are used. |
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