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Progress In Electromagnetics Research C
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STUDY OF EM WAVE ABSORPTION AND SHIELDING CHARACTERISTICS FOR A BONSAI TREE FOR GSM-900 BAND

By M. F. Ali and S. Ray

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Abstract:
Electromagnetic (EM) wave absorption characteristics for a Bonsai tree are investigated at GSM-900 band. Finite Difference in Time Domain (FDTD) method is hybridized with Friis transmission equation to carry out all the required EM simulations. The tree has been modelled using CT scan based 3D dataset considering different electrical parameters. Maximum local electric (E) field, magnetic (H) field, Specific Absorption Rate (SAR) and Shielding Effectiveness (SE) have been calculated for the tree placing at distance of 5 m away from a radiating Base Station Antenna (BSA) with 20 W input power. The maximum local E field, H field, 1-g SAR and SE obtained by the simulation are found to be 70.1 V/m, 0.09 A/m, 0.135 W/kg and 13.18 dB, respectively. Plants are found to be good natural electromagnetic radiation shield.

Citation:
M. F. Ali and S. Ray, "Study of EM Wave Absorption and Shielding Characteristics for a Bonsai Tree for GSM-900 Band," Progress In Electromagnetics Research C, Vol. 49, 149-157, 2014.
doi:10.2528/PIERC14031404

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