Frequency-Selective Absorber with Ultra-Wide Absorption Band And Adjustable Notch Band

2021 ◽  
Author(s):  
Qing An ◽  
Jianxun Su ◽  
Meijun Qu
Keyword(s):  
Absorption Band ◽  
Notch Band ◽  
Wide Absorption Band ◽  
Frequency Selective

Miniaturised band‐absorptive frequency selective rasorbers with wide absorption band

2019 ◽  
Vol 13 (11) ◽  
pp. 1777-1781 ◽  
Author(s):  
Weiliang Yu ◽  
Guo Qing Luo ◽  
Yufeng Yu ◽  
Xiao Hong Zhang ◽  
Kuikui Fan
Keyword(s):  
Absorption Band ◽  
Wide Absorption Band ◽  
Frequency Selective

scholarly journals Ultrathin and Simple Frequency Selective Rasorber Based on Ferrite Absorber with Embedded Epsilon-Near-Zero Tunneling Channels

2021 ◽  
Author(s):  
Shuomin Zhong ◽  
Jiaqi Feng ◽  
Zi-Wei Zheng ◽  
Yungui Ma
Keyword(s):  
Absorption Band ◽  
Magnetic Materials ◽  
Cutoff Frequency ◽  
Tunneling Effect ◽  
Arbitrary Length ◽  
Wide Absorption Band ◽  
Frequency Selective ◽  
Absorption Channel ◽  
Epsilon Near Zero

An ultrathin and simple frequency-selective rasorber (FSR) with a passband located within a wide absorption band is proposed. The ultrawide absorption band is obtained by employing commercial magnetic materials in the absorption channel and the passband is realized using epsilon-near-zero (ENZ) tunneling waveguides. The attractively ultrathin and simple feature is achieved by utilizing tunneling effect at the cutoff frequency of metallic waveguides with arbitrary length, permitting the overall thickness shrink into to the same as that of the absorber.

scholarly journals Ultrathin and Simple Frequency Selective Rasorber Based on Ferrite Absorber with Embedded Epsilon-Near-Zero Tunneling Channels

2021 ◽  
Author(s):  
Shuomin Zhong ◽  
Jiaqi Feng ◽  
Zi-Wei Zheng ◽  
Yungui Ma
Keyword(s):  
Absorption Band ◽  
Magnetic Materials ◽  
Cutoff Frequency ◽  
Tunneling Effect ◽  
Arbitrary Length ◽  
Wide Absorption Band ◽  
Frequency Selective ◽  
Absorption Channel ◽  
Epsilon Near Zero

An ultrathin and simple frequency-selective rasorber (FSR) with a passband located within a wide absorption band is proposed. The ultrawide absorption band is obtained by employing commercial magnetic materials in the absorption channel and the passband is realized using epsilon-near-zero (ENZ) tunneling waveguides. The attractively ultrathin and simple feature is achieved by utilizing tunneling effect at the cutoff frequency of metallic waveguides with arbitrary length, permitting the overall thickness shrink into to the same as that of the absorber.

scholarly journals Absorptive/Transmissive Frequency Selective Surface With Wide Absorption Band

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 92314-92321 ◽  
Author(s):  
Qingxin Guo ◽  
Jianxun Su ◽  
Zengrui Li ◽  
Lamar Y. Yang ◽  
Jiming Song
Keyword(s):  
Absorption Band ◽  
Frequency Selective Surface ◽  
Wide Absorption Band ◽  
Frequency Selective

scholarly journals Solvent-assisted thermal reduction of microcrystalline graphene oxide with excellent microwave absorption performance

RSC Advances ◽  
2018 ◽  
Vol 8 (28) ◽  
pp. 15315-15325 ◽  
Author(s):  
Chenbo Liao ◽  
Xukun Zhu ◽  
Wei Xie ◽  
Fangmei Zeng ◽  
Shihe Yi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Absorption Band ◽  
Microwave Absorption ◽  
Reduction Method ◽  
Thermal Reduction ◽  
Wide Absorption Band ◽  
Absorption Performance ◽  
Microwave Absorption Performance ◽  
High Absorption

Reduced microcrystalline graphene oxide (rGO-M), a novel absorber with high absorption, low reflection and a wide absorption band, was prepared from NMGMs using a solvent-assisted thermal reduction method.

Chlorine Solutions in Molten Alkali Chlorides

2007 ◽  
Vol 62 (3-4) ◽  
pp. 205-212 ◽  
Author(s):  
Artem Kolobov ◽  
Vladimir Khokhlov ◽  
Alexei Potapov ◽  
Victor Kochedykov
Keyword(s):  
Absorption Band ◽  
Molten Salt ◽  
Electronic Absorption ◽  
Absorption Maximum ◽  
Electronic Absorption Spectra ◽  
Absorption Bands ◽  
Short Waves ◽  
Wide Absorption Band ◽  
Alkali Chlorides ◽  
Saturated Solutions

Electronic absorption spectra of gaseous chlorine and their saturated solutions in molten alkali chlorides were studied in wide ranges of temperature and wavelength. It was found that gaseous chlorine has a wide absorption band between 20 000 and 43 500 cm−1. There is a tendency to both widening of the band and shifting of the absorption maximum to the short-waves region with rising temperature.The absorption bands of saturated solutions of chlorine in all molten alkali chlorides show a maximum in the neighborhood of 30 000 cm−1. A good correlation was found between the optical density of molten salt-Cl2 systems and the solubility of chlorine.

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