Measurement of the maximum SAR in a spherical phantom when operating a mobile phone near a metallic wall

Simba, Ally Y.; Watanabe, Soichi; Hikage, Takashi; Nojima, Toshio

doi:10.1109/isabel.2008.4712610

Cited by 5 publications

(7 citation statements)

References 7 publications

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“…This argument can also be established from theoretical approach of [14,15]. For the spatial 10-g SAR, while the use of dipole antenna shows that if it is placed close enough to the spherical phantom may results in SAR exceeding the basic restriction [18], we found out that even when used in a touch position, the SAR in a phantom produced by a commercial phone when used near the wall is very small [24].…”

Section: Rf Safety Guideline In Enclosed Enviromentssupporting

confidence: 55%

“…Furthermore, when spherical phantom is used with dipole antenna it becomes an effective means for the estimation of the worst-case spatial averaged SAR [21]. With its simplicity, this system can also be used in experimental investigation to validate numerical calculations [22].…”

Section: Spherical Phantom-one Wall Systemmentioning

confidence: 99%

“…Based on the above considerations, we have preliminarily investigated the measurements of the SAR for the spheredipole antenna configuration in proximity to metallic wall [22]. We used a MapSAR2 system developed by the Indexsar Ltd [23], to measure peak 10-g SAR in 900 MHz.…”

Section: Measurementsmentioning

confidence: 99%

“…While dipole antenna was used represent mobile phone in [22], it is still important to get results using actual mobile phone used in real life. We have measured the effect of using commercial mobile phone close to a metallic wall [24].…”

Section: Measurementsmentioning

confidence: 99%

“…We have measured the effect of using commercial mobile phone close to a metallic wall [24]. Figure 11 shows measured peak 10-g SAR as a function of the position from the wall in when the spherical phantom is irradiated by a W-CDMA phone.…”

Section: Measurementsmentioning

confidence: 99%

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A review of mobile phone usage in enclosed areas and RF safety guideline

et al. 2009

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The use of mobile phones in metallic enclosed environments such as elevators, train cars and even airplanes has attract a lot of attention in recent years. In these environments, most of the radio frequency (RF) energy from mobile phones remains inside due to the lack of escape routes, resulting in possibility of the field levels exceeding limits described in the international RF safety guidelines. This has resulted in an anxiety on possible health effects of passengers in these environments. In this review paper, size of the passengers (child vs. adult human model), method of investigation (theory vs. numerical), passenger position, elevator structure etc., are briefly discussed to determine how they affect the RF exposure. We also discuss few experimental investigation related to this problem for the passenger using a mobile phone near a metallic wall. Our objective is to provide an understanding of the SAR characteristics of the mobile phone user in such environment and how these characteristics are affected by the aforementioned factors.

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