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2017-08-18
Analysis of Power Flow by Poynting Vectors for Electromagnetic Wave Absorbers Using Frequency Selective Surfaces
By
Progress In Electromagnetics Research B, Vol. 78, 61-74, 2017
Abstract
The power flow for electromagnetic wave absorbers consisting of pattern conductor layers acting as frequency selective surfaces, absorption layers, and short circuit layers was investigated by Poynting vectors. A method was developed to evaluate the flow of electromagnetic wave power by an electromagnetic wave absorber upon irradiation with electromagnetic waves. The results indicate that the electromagnetic wave absorption phenomenon involves generation of true power, a real part of the time averaged Poynting vector, which moves horizontally along the pattern surface after the incident wave has irradiated the pattern conductor from the vertical direction, and the direction of power flow changes to enter the polymer layer from the pattern interval, causing an accumulation of power inside the polymer layer, followed by absorption, which is converted into heat due to the loss factor.
Citation
Takahiko Yoshida, Masato Matsushita, Takumi Kubota, and Shinzo Yoshikado, "Analysis of Power Flow by Poynting Vectors for Electromagnetic Wave Absorbers Using Frequency Selective Surfaces," Progress In Electromagnetics Research B, Vol. 78, 61-74, 2017.
doi:10.2528/PIERB17062401
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