Study on Antenna-Phantom Model of Aperture Antennas for SAR Analysis

被引：0
|
作者：
Fu, Wenfu [1 ]
Xu, Bo [2 ]
He, Sailing [1 ]
机构：
[1] KTH Royal Inst Technol, Div Electromagnet Engn & Fus Sci, Stockholm, Sweden
[2] Ericsson AB, Ericsson Res, Stockholm, Sweden
来源：
2024 18TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION, EUCAP | 2024年
关键词：
RF exposure; specific absorption rate (SAR); aperture antenna; higher-order mode;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In the conventional model to explain the antenna-phantom interaction for specific absorption rate (SAR) analysis, antenna structures are treated as perfect electric conductors. However, such a model does not suffice to analyze complementary antenna structures, i.e., aperture antennas. In this paper, an antenna-phantom model for aperture antennas is introduced considering the tangential electric field generated by the equivalent magnetic currents as the primary contributor to the peak SAR level. When the out-of-phase tangential electric field of the second-order modes for a slot antenna is achieved, the peak 10-g SAR levels are lower than that is caused by a conventional slot antenna with the first-order mode in the same condition due to destructive superposition. Therefore, the proposed antenna-phantom model is helpful to guide the aperture antenna design for the SAR compliance purposes.
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页数：4
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