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Absorbed power density in multilayer models based on human facial tissues for 6-300 GHz plane wave incidence
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- Authors
- Ae-Kyoung Lee, Seon-Eui Hong, Jung-Ick Moon
- Issue Date
- 2024-11
- Citation
- Asia-Pacific Microwave Conference (APMC) 2024, pp.1-3
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- At higher frequencies exceeding 6 GHz, the penetration depth of electromagnetic field in biological tissues becomes shorter, so specific absorption rate is no longer an appropriate physical quantity to evaluate a local exposure. The recently revised IEEE C95.1 standard and ICNIRP guidelines introduced a new physical quantity called 'epithelial power density' and 'absorbed power density (APD)', respectively. In this paper, research data on the thickness of the epidermis and dermis for various locations of the human face were investigated, and then the APD for a plane wave incident perpendicularly to the multilayer tissue model implemented based on the thickness data was calculated in the frequency range of 6-300 GHz. The effect of the thickness of the epidermis and dermis on APD are also analyzed and the relationship between APD and the (exposure) reference level set by the IEEE C95.1 standard and ICNIRP guidelines is discussed.
- KSP Keywords
- 300 GHz, 6 GHz, Absorbed power density(APD), Biological tissues, Electromagnetic Field(EMF), Frequency range, Higher frequency, Human face, ICNIRP guidelines, Level set, Local exposure