Blocking gate resonator rasorber surface brings wide band electromagnetic absorption performance approaching theoretical limit

Xujin Yuan; Yuannan Xu; Mingji Chen; Xiaodong Cheng; Daining Fang

doi:10.1002/mop.31751

Blocking gate resonator rasorber surface brings wide band electromagnetic absorption performance approaching theoretical limit

Xujin Yuan, Yuannan Xu, Mingji Chen^*, Xiaodong Cheng, Daining Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

In wide band electromagnetic absorbers, absorption in high and low frequency domain usually influence each other. Rasorber structure with blocking gate resonator (BGR) sub-wavelength unit surface is proposed and applied in electromagnetic wave absorber to resolve this problem. The absorber has −10 dB low-reflectivity performance operating in bandwidth ratio 161.2% and approaches Rozanov's theory limit in low frequency. BGR unit surface also generate a 2-step design method for multi-layer absorber structure. Rasorber BGR unit surface helps to enhance low frequency absorption with limited thickness while maintain absorption in relative higher wide frequency range by impedance matching at low frequency. Sample fabrication and experiment measurement basically testify the numerical speculations.

Original language	English
Pages (from-to)	1524-1528
Number of pages	5
Journal	Microwave and Optical Technology Letters
Volume	61
Issue number	6
DOIs	https://doi.org/10.1002/mop.31751
Publication status	Published - Jun 2019

Keywords

electromagnetic absorption
metamaterial
multilayer structure
surface

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10.1002/mop.31751

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title = "Blocking gate resonator rasorber surface brings wide band electromagnetic absorption performance approaching theoretical limit",

abstract = "In wide band electromagnetic absorbers, absorption in high and low frequency domain usually influence each other. Rasorber structure with blocking gate resonator (BGR) sub-wavelength unit surface is proposed and applied in electromagnetic wave absorber to resolve this problem. The absorber has −10 dB low-reflectivity performance operating in bandwidth ratio 161.2% and approaches Rozanov's theory limit in low frequency. BGR unit surface also generate a 2-step design method for multi-layer absorber structure. Rasorber BGR unit surface helps to enhance low frequency absorption with limited thickness while maintain absorption in relative higher wide frequency range by impedance matching at low frequency. Sample fabrication and experiment measurement basically testify the numerical speculations.",

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T1 - Blocking gate resonator rasorber surface brings wide band electromagnetic absorption performance approaching theoretical limit

AU - Yuan, Xujin

AU - Xu, Yuannan

AU - Chen, Mingji

AU - Cheng, Xiaodong

AU - Fang, Daining

PY - 2019/6

Y1 - 2019/6

N2 - In wide band electromagnetic absorbers, absorption in high and low frequency domain usually influence each other. Rasorber structure with blocking gate resonator (BGR) sub-wavelength unit surface is proposed and applied in electromagnetic wave absorber to resolve this problem. The absorber has −10 dB low-reflectivity performance operating in bandwidth ratio 161.2% and approaches Rozanov's theory limit in low frequency. BGR unit surface also generate a 2-step design method for multi-layer absorber structure. Rasorber BGR unit surface helps to enhance low frequency absorption with limited thickness while maintain absorption in relative higher wide frequency range by impedance matching at low frequency. Sample fabrication and experiment measurement basically testify the numerical speculations.

AB - In wide band electromagnetic absorbers, absorption in high and low frequency domain usually influence each other. Rasorber structure with blocking gate resonator (BGR) sub-wavelength unit surface is proposed and applied in electromagnetic wave absorber to resolve this problem. The absorber has −10 dB low-reflectivity performance operating in bandwidth ratio 161.2% and approaches Rozanov's theory limit in low frequency. BGR unit surface also generate a 2-step design method for multi-layer absorber structure. Rasorber BGR unit surface helps to enhance low frequency absorption with limited thickness while maintain absorption in relative higher wide frequency range by impedance matching at low frequency. Sample fabrication and experiment measurement basically testify the numerical speculations.

KW - electromagnetic absorption

KW - metamaterial

KW - multilayer structure

KW - surface

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JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

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ER -

Blocking gate resonator rasorber surface brings wide band electromagnetic absorption performance approaching theoretical limit

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Keywords

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