Dynamic control of electromagnetic wave propagation with the equivalent principle inspired tunable metasurface
By Bo O. Zhu, Ke Chen, Nan Jia, Liang Sun, Junming Zhao, Tian Jiang, Yijun Feng. Scientific Reports, 2014
157 citations recorded by the source corpus.
Transmission and reflection are two fundamental properties of the electromagnetic wave propagation through obstacles. Full control of both the magnitude and phase of the transmission and reflection independently are important issue for free manipulation of electromagnetic wave propagation. Here we employed the equivalent principle, one fundamental theorem of electromagnetics, to analyze the required surface electric and magnetic impedances of a passive metasurface to produce either arbitrary transmission magnitude and phase or arbitrary reflection magnitude and phase. Based on the analysis, a tunable metasurface is proposed. It is shown that the transmission phase can be tuned by 360° with the unity transmissivity or the transmissivity can be tuned from 0 to 1 while the transmission phase is kept around 0°. The reflection magnitude and phase can also been tuned similarly with the proposed metasurface. The proposed design may have many potential applications, such as the dynamic EM beam forming and scanning.
Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/49092eb404ceda4db4c329898499e2c4a3470449
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In Electronic, Optical and Magnetic Materials
Citations in the corpus
- STAR: Simultaneous Transmission and Reflection for 360° Coverage by Intelligent Surfaces (2021, methodology): “A beneficial practical hardware design is to employ an equivalent principle inspired tunable metasurfaces [11], where each element is composed of a parallel resonant LC tank and small metallic loops to provide the required electric and magnetic surface reactance.”
- Simultaneously Transmitting And Reflecting (STAR) RIS Aided Wireless Communications (2021, methodology): “For the prototype proposed in [26], each element was composed of a parallel resonant LC tank and small metallic loops to provide the required electric and magnetic surface reactance.”
- Reconfigurable Intelligent Surfaces: Principles and Opportunities (2020, methodology): “Here, we discuss three important RIS working conditions: waveguide [27], refraction [28] and reflection [29].”