Analysis and Design of an Ultra-Thin Metamaterial Absorber

Huang, Renliang; Li, Zhengwen; Kong, Ling Bing; Liu, Lie; Matitsine, S.

doi:10.2528/pierb09040902

Cited by 55 publications

(30 citation statements)

References 31 publications

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“…This modeling is called TEM waveguide [16] (Figure 1(b)). This model is simulated by different numerical methods, such as FDTD [17] and mode matching technique [18][19][20][21], to get the scattering parameters of the main structure. Using the TEM waveguide modeling shows that a metasurface element has the role of a transverse discontinuity in hypothesis waveguide [18].…”

Section: Modal Analysis Of Metasurfacementioning

confidence: 99%

Analytical Investigation Into the S-Parameters of Metamaterial Layers

Meybodi¹,

Paran²

2016

PIER B

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Abstract-Making use of mode matching method, a theoretical analysis of a metamaterial layer is presented. The unit cell of the structure is modeled by a TEM waveguide, and the metamaterial element is supposed as a discontinuity in the waveguide. Analyzing the structure using this model, mathematical relations between s-parameters of a metasurface are extracted. It is evident that the variation of each s-parameter is limited to an arc of circle on Smith chart. The key factors determining the location of each circle on plane are specified. Moreover, a discussion on the role of metasurface element in the determination of s-parameters of the structure is given. The variations of scattering transfer parameters on the plane are determined, too. The steps needed to derive these relations are described. Using these relations, simple and straightforward formulas are devised which can be used to predict the response of the metasurface. Finally, some metasurfaces will be analyzed by full-wave method. The new relations are well-agreed with simulation results.

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Section: Modal Analysis Of Metasurfacementioning

confidence: 99%

Analytical Investigation Into the S-Parameters of Metamaterial Layers

Meybodi¹,

Paran²

2016

PIER B

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“…Recently metamaterials have been employed to construct EM wave absorbers [6][7][8][9][10][11][12]. Through designing the inclusion structures, the effective EM parameters of metamaterials can be tailored and unique values which are less than unity or even negative can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Dual Band Switchable Metamaterial Electromagnetic Absorber

Zhu¹,

Huang²,

Feng

et al. 2010

PIER B

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Abstract-This paper presents the design, fabrication and measurement of a dual band switchable metamaterial electromagnetic absorber. The unit cell of the metamaterial consists of dipole mode electric resonators coupled by microwave diodes on one side of a dielectric substrate and metallic ground plane on the other side. Simulation and measurement results show that by forward or reverse biasing the diodes so as to change the coupling between the resonators, the absorber can be dynamically switched to operate in two adjacent frequency bands with nearly perfect peak absorption. Field distribution reveals the physical origin of the switchable performance based on the dipole mode of the electric resonator in the unit cell. It is also demonstrated that the frequency difference between the two bands can be tuned by adjusting the loading positions of the diodes with unchanged high absorption, which helps to design absorbers with specific switchable working frequencies in practical applications.

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“…Recently, resonant metamaterial absorbers (MAs) at microwave and terahertz (THz) bands have attracted much attention due to the advantages such as high absorption, low density, and thin thickness [1][2][3][4][5][6]. The MA generally composed of a metamaterial layer and a metal plate layer separated by a dielectric spacer.…”

Section: Introductionmentioning

confidence: 99%